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| 70 | <b></b><ul> | 70 | <b></b><ul> |
| 71 | <li><b><a·href="vl_compile.html">vl_compile</a></b>·Compile·VLFeat·MEX·files</li><li><b><a·href="vl_demo.html">vl_demo</a></b>·Run·VLFeat·demos</li><li><b><a·href="vl_harris.html">vl_harris</a></b>·Harris·corner·strength</li><li><b><a·href="vl_help.html">vl_help</a></b>·VLFeat·toolbox·builtin·help</li><li><b><a·href="vl_noprefix.html">vl_noprefix</a></b>·Create·a·prefix-less·version·of·VLFeat·commands</li><li><b><a·href="vl_root.html">vl_root</a></b>·Obtain·VLFeat·root·path</li><li><b><a·href="vl_setup.html">vl_setup</a></b>·Add·VLFeat·Toolbox·to·the·path</li></ul> | 71 | <li><b><a·href="vl_compile.html">vl_compile</a></b>·Compile·VLFeat·MEX·files</li><li><b><a·href="vl_demo.html">vl_demo</a></b>·Run·VLFeat·demos</li><li><b><a·href="vl_harris.html">vl_harris</a></b>·Harris·corner·strength</li><li><b><a·href="vl_help.html">vl_help</a></b>·VLFeat·toolbox·builtin·help</li><li><b><a·href="vl_noprefix.html">vl_noprefix</a></b>·Create·a·prefix-less·version·of·VLFeat·commands</li><li><b><a·href="vl_root.html">vl_root</a></b>·Obtain·VLFeat·root·path</li><li><b><a·href="vl_setup.html">vl_setup</a></b>·Add·VLFeat·Toolbox·to·the·path</li></ul> |
| 72 | <b>MISC</b><ul> | ||
| 73 | <li><b><a·href="vl_alldist2.html">vl_alldist2</a></b>·Pairwise·distances</li><li><b><a·href="vl_alphanum.html">vl_alphanum</a></b>·Sort·strings·using·the·Alphanum·algorithm</li><li><b><a·href="vl_argparse.html">vl_argparse</a></b>·Parse·list·of·parameter-value·pairs.</li><li><b><a·href="vl_binsearch.html">vl_binsearch</a></b>·Maps·data·to·bins</li><li><b><a·href="vl_binsum.html">vl_binsum</a></b>·Binned·summation</li><li><b><a·href="vl_colsubset.html">vl_colsubset</a></b>·Select·a·given·number·of·columns</li><li><b><a·href="vl_cummax.html">vl_cummax</a></b>·Cumulative·maximum</li><li><b><a·href="vl_getpid.html">vl_getpid</a></b>·Get·MATLAB·process·ID</li><li><b><a·href="vl_grad.html">vl_grad</a></b>·Compute·the·gradient·of·an·image</li><li><b><a·href="vl_histmarg.html">vl_histmarg</a></b>·Marginal·of·histogram</li><li><b><a·href="vl_hog.html">vl_hog</a></b>·Compute·HOG·features</li><li><b><a·href="vl_homkermap.html">vl_homkermap</a></b>·Homogeneous·kernel·map</li><li><b><a·href="vl_ihashfind.html">vl_ihashfind</a></b>·Find·labels·in·an·integer·hash·table</li><li><b><a·href="vl_ihashsum.html">vl_ihashsum</a></b>·Accumulate·integer·labels·into·a·hash·table</li><li><b><a·href="vl_inthist.html">vl_inthist</a></b>·Calculate·Integral·Histogram</li><li><b><a·href="vl_isoctave.html">vl_isoctave</a></b>·Determines·whether·Octave·is·running</li><li><b><a·href="vl_kdtreebuild.html">vl_kdtreebuild</a></b>·Build·randomized·kd-tree</li><li><b><a·href="vl_kdtreequery.html">vl_kdtreequery</a></b>·Query·KD-tree</li><li><b><a·href="vl_lbp.html">vl_lbp</a></b>·Local·Binary·Patterns</li><li><b><a·href="vl_lbpfliplr.html">vl_lbpfliplr</a></b>·Flip·LBP·features·left-right</li><li><b><a·href="vl_localmax.html">vl_localmax</a></b>·Find·local·maximizers</li><li><b><a·href="vl_matlabversion.html">vl_matlabversion</a></b>·Return·MATLAB·version·as·an·integer</li><li><b><a·href="vl_numder.html">vl_numder</a></b>·Numerical·derivative</li><li><b><a·href="vl_numder2.html">vl_numder2</a></b>·Numerical·second·derivative</li><li><b><a·href="vl_override.html">vl_override</a></b>·Override·structure·subset</li><li><b><a·href="vl_pegasos.html">vl_pegasos</a></b>·[deprecated]</li><li><b><a·href="vl_sampleinthist.html">vl_sampleinthist</a></b>·Sample·integral·histogram</li><li><b><a·href="vl_simdctrl.html">vl_simdctrl</a></b>·Toggle·VLFeat·SIMD·optimizations</li><li><b><a·href="vl_svmdataset.html">vl_svmdataset</a></b>·Construct·advanced·SVM·dataset·structure</li><li><b><a·href="vl_svmpegasos.html">vl_svmpegasos</a></b>·[deprecated]</li><li><b><a·href="vl_svmtrain.html">vl_svmtrain</a></b>·Train·a·Support·Vector·Machine</li><li><b><a·href="vl_threads.html">vl_threads</a></b>·Control·VLFeat·computational·threads</li><li><b><a·href="vl_twister.html">vl_twister</a></b>·Random·number·generator</li><li><b><a·href="vl_version.html">vl_version</a></b>·Obtain·VLFeat·version·information</li><li><b><a·href="vl_whistc.html">vl_whistc</a></b>·Weighted·histogram</li><li><b><a·href="vl_xmkdir.html">vl_xmkdir</a></b>·Create·a·directory·recursively.</li></ul> | ||
| 74 | <b> | 72 | <b>MSER</b><ul> |
| 73 | <li><b><a·href="vl_erfill.html">vl_erfill</a></b>·Fill·extremal·region</li><li><b><a·href="vl_ertr.html">vl_ertr</a></b>·Transpose·exremal·regions·frames</li><li><b><a·href="vl_mser.html">vl_mser</a></b>·Maximally·Stable·Extremal·Regions</li></ul> | ||
| 75 | <li><b><a·href="vl_fisher.html">vl_fisher</a></b>·Fisher·vector·feature·encoding</li></ul> | ||
| 76 | <b>SLIC</b><ul> | ||
| 77 | <li><b><a·href="vl_slic.html">vl_slic</a></b>·SLIC·superpixels</li></ul> | ||
| 78 | <b>IMOP</b><ul> | ||
| 79 | <li><b><a·href="vl_dwaffine.html">vl_dwaffine</a></b>·Derivative·of·an·affine·warp</li><li><b><a·href="vl_imarray.html">vl_imarray</a></b>·Flattens·image·array</li><li><b><a·href="vl_imarraysc.html">vl_imarraysc</a></b>·Scale·and·flattens·image·array</li><li><b><a·href="vl_imdisttf.html">vl_imdisttf</a></b>·Image·distance·transform</li><li><b><a·href="vl_imdown.html">vl_imdown</a></b>·Downsample·an·image·by·two</li><li><b><a·href="vl_imgrad.html">vl_imgrad</a></b>·Image·gradient</li><li><b><a·href="vl_imintegral.html">vl_imintegral</a></b>·Compute·integral·image</li><li><b><a·href="vl_impattern.html">vl_impattern</a></b>·Generate·an·image·from·a·stock·pattern</li><li><b><a·href="vl_imreadbw.html">vl_imreadbw</a></b>·Reads·an·image·as·gray-scale</li><li><b><a·href="vl_imreadgray.html">vl_imreadgray</a></b>·Reads·an·image·as·gray-scale</li><li><b><a·href="vl_imsc.html">vl_imsc</a></b>·Scale·image</li><li><b><a·href="vl_imsmooth.html">vl_imsmooth</a></b>·Smooth·image</li><li><b><a·href="vl_imup.html">vl_imup</a></b>·Upsample·an·image·by·two</li><li><b><a·href="vl_imwbackward.html">vl_imwbackward</a></b>·Image·backward·warping</li><li><b><a·href="vl_imwhiten.html">vl_imwhiten</a></b>·Whiten·an·image</li><li><b><a·href="vl_rgb2xyz.html">vl_rgb2xyz</a></b>·Convert·RGB·color·space·to·XYZ</li><li><b><a·href="vl_tps.html">vl_tps</a></b>·Compute·the·thin-plate·spline·basis</li><li><b><a·href="vl_tpsu.html">vl_tpsu</a></b>·Compute·the·U·matrix·of·a·thin-plate·spline·transformation</li><li><b><a·href="vl_waffine.html">vl_waffine</a></b>·Apply·affine·transformation·to·points</li><li><b><a·href="vl_witps.html">vl_witps</a></b>·Inverse·thin-plate·spline·warping</li><li><b><a·href="vl_wtps.html">vl_wtps</a></b>·Thin-plate·spline·warping</li><li><b><a·href="vl_xyz2lab.html">vl_xyz2lab</a></b>·Convert·XYZ·color·space·to·LAB</li><li><b><a·href="vl_xyz2luv.html">vl_xyz2luv</a></b>·Convert·XYZ·color·space·to·LUV</li><li><b><a·href="vl_xyz2rgb.html">vl_xyz2rgb</a></b>·Convert·XYZ·to·RGB</li></ul> | ||
| 80 | <b>SIFT</b><ul> | 74 | <b>QUICKSHIFT</b><ul> |
| 81 | <li><b><a·href="vl_ | 75 | <li><b><a·href="vl_flatmap.html">vl_flatmap</a></b>·Flatten·a·tree,·assigning·the·label·of·the·root·to·each·node</li><li><b><a·href="vl_imseg.html">vl_imseg</a></b>·Color·an·image·based·on·the·segmentation</li><li><b><a·href="vl_quickseg.html">vl_quickseg</a></b>·Produce·a·q[·...·truncated·by·diffoscope;·len:·256,·SHA:·574cddc34d7c7bf14eba42c2fe762b6204da7a0da1906170a608ae55c6802462·...·]</li></ul> |
| 82 | <b>SPECIAL</b><ul> | 76 | <b>SPECIAL</b><ul> |
| 83 | <li><b><a·href="vl_ddgaussian.html">vl_ddgaussian</a></b>·Second·derivative·of·the·Gaussian·density·function</li><li><b><a·href="vl_dgaussian.html">vl_dgaussian</a></b>·Derivative·of·the·Gaussian·density·function</li><li><b><a·href="vl_dsigmoid.html">vl_dsigmoid</a></b>·Derivative·of·the·sigmoid·function</li><li><b><a·href="vl_gaussian.html">vl_gaussian</a></b>·Standard·Gaussian·density·function</li><li><b><a·href="vl_rcos.html">vl_rcos</a></b>·RCOS·function</li><li><b><a·href="vl_sigmoid.html">vl_sigmoid</a></b>·Sigmoid·function</li></ul> | 77 | <li><b><a·href="vl_ddgaussian.html">vl_ddgaussian</a></b>·Second·derivative·of·the·Gaussian·density·function</li><li><b><a·href="vl_dgaussian.html">vl_dgaussian</a></b>·Derivative·of·the·Gaussian·density·function</li><li><b><a·href="vl_dsigmoid.html">vl_dsigmoid</a></b>·Derivative·of·the·sigmoid·function</li><li><b><a·href="vl_gaussian.html">vl_gaussian</a></b>·Standard·Gaussian·density·function</li><li><b><a·href="vl_rcos.html">vl_rcos</a></b>·RCOS·function</li><li><b><a·href="vl_sigmoid.html">vl_sigmoid</a></b>·Sigmoid·function</li></ul> |
| 78 | <b>GMM</b><ul> | ||
| 79 | <li><b><a·href="vl_gmm.html">vl_gmm</a></b>·Learn·a·Gaussian·Mixture·Model·using·EM</li></ul> | ||
| 80 | <b>SLIC</b><ul> | ||
| 81 | <li><b><a·href="vl_slic.html">vl_slic</a></b>·SLIC·superpixels</li></ul> | ||
| 84 | <b>KMEANS</b><ul> | 82 | <b>KMEANS</b><ul> |
| 85 | <li><b><a·href="vl_hikmeans.html">vl_hikmeans</a></b>·Hierachical·integer·K-means</li><li><b><a·href="vl_hikmeanshist.html">vl_hikmeanshist</a></b>·Compute·histogram·of·quantized·data</li><li><b><a·href="vl_hikmeanspush.html">vl_hikmeanspush</a></b>·Push·data·down·an·integer·K-means·tree</li><li><b><a·href="vl_ikmeans.html">vl_ikmeans</a></b>·Integer·K-means</li><li><b><a·href="vl_ikmeanshist.html">vl_ikmeanshist</a></b>·Compute·histogram·of·quantized·data</li><li><b><a·href="vl_ikmeanspush.html">vl_ikmeanspush</a></b>·Project·data·on·integer·K-means·paritions</li><li><b><a·href="vl_kmeans.html">vl_kmeans</a></b>·Cluster·data·using·k-means</li></ul> | 83 | <li><b><a·href="vl_hikmeans.html">vl_hikmeans</a></b>·Hierachical·integer·K-means</li><li><b><a·href="vl_hikmeanshist.html">vl_hikmeanshist</a></b>·Compute·histogram·of·quantized·data</li><li><b><a·href="vl_hikmeanspush.html">vl_hikmeanspush</a></b>·Push·data·down·an·integer·K-means·tree</li><li><b><a·href="vl_ikmeans.html">vl_ikmeans</a></b>·Integer·K-means</li><li><b><a·href="vl_ikmeanshist.html">vl_ikmeanshist</a></b>·Compute·histogram·of·quantized·data</li><li><b><a·href="vl_ikmeanspush.html">vl_ikmeanspush</a></b>·Project·data·on·integer·K-means·paritions</li><li><b><a·href="vl_kmeans.html">vl_kmeans</a></b>·Cluster·data·using·k-means</li></ul> |
| 84 | <b>MISC</b><ul> | ||
| 85 | <li><b><a·href="vl_alldist2.html">vl_alldist2</a></b>·Pairwise·distances</li><li><b><a·href="vl_alphanum.html">vl_alphanum</a></b>·Sort·strings·using·the·Alphanum·algorithm</li><li><b><a·href="vl_argparse.html">vl_argparse</a></b>·Parse·list·of·parameter-value·pairs.</li><li><b><a·href="vl_binsearch.html">vl_binsearch</a></b>·Maps·data·to·bins</li><li><b><a·href="vl_binsum.html">vl_binsum</a></b>·Binned·summation</li><li><b><a·href="vl_colsubset.html">vl_colsubset</a></b>·Select·a·given·number·of·columns</li><li><b><a·href="vl_cummax.html">vl_cummax</a></b>·Cumulative·maximum</li><li><b><a·href="vl_getpid.html">vl_getpid</a></b>·Get·MATLAB·process·ID</li><li><b><a·href="vl_grad.html">vl_grad</a></b>·Compute·the·gradient·of·an·image</li><li><b><a·href="vl_histmarg.html">vl_histmarg</a></b>·Marginal·of·histogram</li><li><b><a·href="vl_hog.html">vl_hog</a></b>·Compute·HOG·features</li><li><b><a·href="vl_homkermap.html">vl_homkermap</a></b>·Homogeneous·kernel·map</li><li><b><a·href="vl_ihashfind.html">vl_ihashfind</a></b>·Find·labels·in·an·integer·hash·table</li><li><b><a·href="vl_ihashsum.html">vl_ihashsum</a></b>·Accumulate·integer·labels·into·a·hash·table</li><li><b><a·href="vl_inthist.html">vl_inthist</a></b>·Calculate·Integral·Histogram</li><li><b><a·href="vl_isoctave.html">vl_isoctave</a></b>·Determines·whether·Octave·is·running</li><li><b><a·href="vl_kdtreebuild.html">vl_kdtreebuild</a></b>·Build·randomized·kd-tree</li><li><b><a·href="vl_kdtreequery.html">vl_kdtreequery</a></b>·Query·KD-tree</li><li><b><a·href="vl_lbp.html">vl_lbp</a></b>·Local·Binary·Patterns</li><li><b><a·href="vl_lbpfliplr.html">vl_lbpfliplr</a></b>·Flip·LBP·features·left-right</li><li><b><a·href="vl_localmax.html">vl_localmax</a></b>·Find·local·maximizers</li><li><b><a·href="vl_matlabversion.html">vl_matlabversion</a></b>·Return·MATLAB·version·as·an·integer</li><li><b><a·href="vl_numder.html">vl_numder</a></b>·Numerical·derivative</li><li><b><a·href="vl_numder2.html">vl_numder2</a></b>·Numerical·second·derivative</li><li><b><a·href="vl_override.html">vl_override</a></b>·Override·structure·subset</li><li><b><a·href="vl_pegasos.html">vl_pegasos</a></b>·[deprecated]</li><li><b><a·href="vl_sampleinthist.html">vl_sampleinthist</a></b>·Sample·integral·histogram</li><li><b><a·href="vl_simdctrl.html">vl_simdctrl</a></b>·Toggle·VLFeat·SIMD·optimizations</li><li><b><a·href="vl_svmdataset.html">vl_svmdataset</a></b>·Construct·advanced·SVM·dataset·structure</li><li><b><a·href="vl_svmpegasos.html">vl_svmpegasos</a></b>·[deprecated]</li><li><b><a·href="vl_svmtrain.html">vl_svmtrain</a></b>·Train·a·Support·Vector·Machine</li><li><b><a·href="vl_threads.html">vl_threads</a></b>·Control·VLFeat·computational·threads</li><li><b><a·href="vl_twister.html">vl_twister</a></b>·Random·number·generator</li><li><b><a·href="vl_version.html">vl_version</a></b>·Obtain·VLFeat·version·information</li><li><b><a·href="vl_whistc.html">vl_whistc</a></b>·Weighted·histogram</li><li><b><a·href="vl_xmkdir.html">vl_xmkdir</a></b>·Create·a·directory·recursively.</li></ul> | ||
| 86 | <b>AIB</b><ul> | 86 | <b>AIB</b><ul> |
| 87 | <li><b><a·href="vl_aib.html">vl_aib</a></b>·Agglomerative·Information·Bottleneck</li><li><b><a·href="vl_aibcut.html">vl_aibcut</a></b>·Cut·VL_AIB·tree</li><li><b><a·href="vl_aibcuthist.html">vl_aibcuthist</a></b>·Compute·a·histogram·by·using·an·AIB·compressed·alphabet</li><li><b><a·href="vl_aibcutpush.html">vl_aibcutpush</a></b>·Quantize·based·on·VL_AIB·cut</li><li><b><a·href="vl_aibhist.html">vl_aibhist</a></b>·Compute·histogram·over·VL_AIB·tree</li></ul> | 87 | <li><b><a·href="vl_aib.html">vl_aib</a></b>·Agglomerative·Information·Bottleneck</li><li><b><a·href="vl_aibcut.html">vl_aibcut</a></b>·Cut·VL_AIB·tree</li><li><b><a·href="vl_aibcuthist.html">vl_aibcuthist</a></b>·Compute·a·histogram·by·using·an·AIB·compressed·alphabet</li><li><b><a·href="vl_aibcutpush.html">vl_aibcutpush</a></b>·Quantize·based·on·VL_AIB·cut</li><li><b><a·href="vl_aibhist.html">vl_aibhist</a></b>·Compute·histogram·over·VL_AIB·tree</li></ul> |
| 88 | <b>VLAD</b><ul> | ||
| 89 | <li><b><a·href="vl_vlad.html">vl_vlad</a></b>·VLAD·feature·encoding</li></ul> | ||
| 90 | <b>GMM</b><ul> | ||
| 91 | <li><b><a·href="vl_gmm.html">vl_gmm</a></b>·Learn·a·Gaussian·Mixture·Model·using·EM</li></ul> | ||
| 92 | <b>QUICKSHIFT</b><ul> | ||
| 93 | <li><b><a·href="vl_flatmap.html">vl_flatmap</a></b>·Flatten·a·tree,·assigning·the·label·of·the·root·to·each·node</li><li><b><a·href="vl_imseg.html">vl_imseg</a></b>·Color·an·image·based·on·the·segmentation</li><li><b><a·href="vl_quickseg.html">vl_quickseg</a></b>·Produce·a·quickshift·segmentation·of·a·grayscale·or·color·image</li><li><b><a·href="vl_quickshift.html">vl_quickshift</a></b>·Quick·shift·image·segmentation</li><li><b><a·href="vl_quickvis.html">vl_quickvis</a></b>·Create·an·edge·image·from·a·Quickshift·segmentation.</li></ul> | ||
| 94 | <b>PLOTOP</b><ul> | ||
| 95 | <li><b><a·href="vl_cf.html">vl_cf</a></b>·Creates·a·copy·of·a·figure</li><li><b><a·href="vl_click.html">vl_click</a></b>·Click·a·point</li><li><b><a·href="vl_clickpoint.html">vl_clickpoint</a></b>·Select·a·point·by·clicking</li><li><b><a·href="vl_clicksegment.html">vl_clicksegment</a></b>·Select·a·segment·by·clicking</li><li><b><a·href="vl_det.html">vl_det</a></b>·Compute·DET·curve</li><li><b><a·href="vl_figaspect.html">vl_figaspect</a></b>·Set·figure·aspect·ratio</li><li><b><a·href="vl_linespec2prop.html">vl_linespec2prop</a></b>·Convert·PLOT·style·line·specs·to·line·properties</li><li><b><a·href="vl_plotbox.html">vl_plotbox</a></b>·Plot·boxes</li><li><b><a·href="vl_plotframe.html">vl_plotframe</a></b>·Plot·a·geometric·frame</li><li><b><a·href="vl_plotgrid.html">vl_plotgrid</a></b>·Plot·a·2-D·grid</li><li><b><a·href="vl_plotpoint.html">vl_plotpoint</a></b>·Plot·2·or·3·dimensional·points</li><li><b><a·href="vl_plotstyle.html">vl_plotstyle</a></b>·Get·a·plot·style</li><li><b><a·href="vl_pr.html">vl_pr</a></b>·Precision-recall·curve.</li><li><b><a·href="vl_printsize.html">vl_printsize</a></b>·Set·the·printing·size·of·a·figure</li><li><b><a·href="vl_roc.html">vl_roc</a></b>·ROC·curve.</li><li><b><a·href="vl_tightsubplot.html">vl_tightsubplot</a></b>·Tiles·axes·without·wasting·space</li><li><b><a·href="vl_tpfp.html">vl_tpfp</a></b>·Compute·true·positives·and·false·positives</li></ul> | ||
| 96 | <b>MSER</b><ul> | ||
| 97 | <li><b><a·href="vl_erfill.html">vl_erfill</a></b>·Fill·extremal·region</li><li><b><a·href="vl_ertr.html">vl_ertr</a></b>·Transpose·exremal·regions·frames</li><li><b><a·href="vl_mser.html">vl_mser</a></b>·Maximally·Stable·Extremal·Regions</li></ul> | ||
| 98 | <b>GEOMETRY</b><ul> | 88 | <b>GEOMETRY</b><ul> |
| 99 | <li><b><a·href="vl_hat.html">vl_hat</a></b>·Hat·operator</li><li><b><a·href="vl_ihat.html">vl_ihat</a></b>·Inverse·vl_hat·operator</li><li><b><a·href="vl_irodr.html">vl_irodr</a></b>·Inverse·Rodrigues'·formula</li><li><b><a·href="vl_rodr.html">vl_rodr</a></b>·Rodrigues'·formula</li></ul> | 89 | <li><b><a·href="vl_hat.html">vl_hat</a></b>·Hat·operator</li><li><b><a·href="vl_ihat.html">vl_ihat</a></b>·Inverse·vl_hat·operator</li><li><b><a·href="vl_irodr.html">vl_irodr</a></b>·Inverse·Rodrigues'·formula</li><li><b><a·href="vl_rodr.html">vl_rodr</a></b>·Rodrigues'·formula</li></ul> |
| 90 | <b>PLOTOP</b><ul> | ||
| 91 | <li><b><a·href="vl_cf.html">vl_cf</a></b>·Creates·a·copy·of·a·figure</li><li><b><a·href="vl_click.html">vl_click</a></b>·Click·a·point</li><li><b><a·href="vl_clickpoint.html">vl_clickpoint</a></b>·Select·a·point·by·clicking</li><li><b><a·href="vl_clicksegment.html">vl_clicksegment</a></b>·Select·a·segment·by·clicking</li><li><b><a·href="vl_det.html">vl_det</a></b>·Compute·DET·curve</li><li><b><a·href="vl_figaspect.html">vl_figaspect</a></b>·Set·figure·aspect·ratio</li><li><b><a·href="vl_linespec2prop.html">vl_linespec2prop</a></b>·Convert·PLOT·style·line·specs·to·line·properties</li><li><b><a·href="vl_plotbox.html">vl_plotbox</a></b>·Plot·boxes</li><li><b><a·href="vl_plotframe.html">vl_plotframe</a></b>·Plot·a·geometric·frame</li><li><b><a·href="vl_plotgrid.html">vl_plotgrid</a></b>·Plot·a·2-D·grid</li><li><b><a·href="vl_plotpoint.html">vl_plotpoint</a></b>·Plot·2·or·3·dimensional·points</li><li><b><a·href="vl_plotstyle.html">vl_plotstyle</a></b>·Get·a·plot·style</li><li><b><a·href="vl_pr.html">vl_pr</a></b>·Precision-recall·curve.</li><li><b><a·href="vl_printsize.html">vl_printsize</a></b>·Set·the·printing·size·of·a·figure</li><li><b><a·href="vl_roc.html">vl_roc</a></b>·ROC·curve.</li><li><b><a·href="vl_tightsubplot.html">vl_tightsubplot</a></b>·Tiles·axes·without·wasting·space</li><li><b><a·href="vl_tpfp.html">vl_tpfp</a></b>·Compute·true·positives·and·false·positives</li></ul> | ||
| 92 | <b>FISHER</b><ul> | ||
| 93 | <li><b><a·href="vl_fisher.html">vl_fisher</a></b>·Fisher·vector·feature·encoding</li></ul> | ||
| 94 | <b>IMOP</b><ul> | ||
| 95 | <li><b><a·href="vl_dwaffine.html">vl_dwaffine</a></b>·Derivative·of·an·affine·warp</li><li><b><a·href="vl_imarray.html">vl_imarray</a></b>·Flattens·image·array</li><li><b><a·href="vl_imarraysc.html">vl_imarraysc</a></b>·Scale·and·flattens·image·array</li><li><b><a·href="vl_imdisttf.html">vl_imdisttf</a></b>·Image·distance·transform</li><li><b><a·href="vl_imdown.html">vl_imdown</a></b>·Downsample·an·image·by·two</li><li><b><a·href="vl_imgrad.html">vl_imgrad</a></b>·Image·gradient</li><li><b><a·href="vl_imintegral.html">vl_imintegral</a></b>·Compute·integral·image</li><li><b><a·href="vl_impattern.html">vl_impattern</a></b>·Generate·an·image·from·a·stock·pattern</li><li><b><a·href="vl_imreadbw.html">vl_imreadbw</a></b>·Reads·an·image·as·gray-scale</li><li><b><a·href="vl_imreadgray.html">vl_imreadgray</a></b>·Reads·an·image·as·gray-scale</li><li><b><a·href="vl_imsc.html">vl_imsc</a></b>·Scale·image</li><li><b><a·href="vl_imsmooth.html">vl_imsmooth</a></b>·Smooth·image</li><li><b><a·href="vl_imup.html">vl_imup</a></b>·Upsample·an·image·by·two</li><li><b><a·href="vl_imwbackward.html">vl_imwbackward</a></b>·Image·backward·warping</li><li><b><a·href="vl_imwhiten.html">vl_imwhiten</a></b>·Whiten·an·image</li><li><b><a·href="vl_rgb2xyz.html">vl_rgb2xyz</a></b>·Convert·RGB·color·space·to·XYZ</li><li><b><a·href="vl_tps.html">vl_tps</a></b>·Compute·the·thin-plate·spline·basis</li><li><b><a·href="vl_tpsu.html">vl_tpsu</a></b>·Compute·the·U·matrix·of·a·thin-plate·spline·transformation</li><li><b><a·href="vl_waffine.html">vl_waffine</a></b>·Apply·affine·transformation·to·points</li><li><b><a·href="vl_witps.html">vl_witps</a></b>·Inverse·thin-plate·spline·warping</li><li><b><a·href="vl_wtps.html">vl_wtps</a></b>·Thin-plate·spline·warping</li><li><b><a·href="vl_xyz2lab.html">vl_xyz2lab</a></b>·Convert·XYZ·color·space·to·LAB</li><li><b><a·href="vl_xyz2luv.html">vl_xyz2luv</a></b>·Convert·XYZ·color·space·to·LUV</li><li><b><a·href="vl_xyz2rgb.html">vl_xyz2rgb</a></b>·Convert·XYZ·to·RGB</li></ul> | ||
| 96 | <b>VLAD</b><ul> | ||
| 97 | <li><b><a·href="vl_vlad.html">vl_vlad</a></b>·VLAD·feature·encoding</li></ul> | ||
| 98 | <b>SIFT</b><ul> | ||
| 99 | <li><b><a·href="vl_covdet.html">vl_covdet</a></b>·Covariant·feature·detectors·and·descriptors</li><li><b><a·href="vl_dsift.html">vl_dsift</a></b>·Dense·SIFT</li><li><b><a·href="vl_frame2oell.html">vl_frame2oell</a></b>·Convert·a·geometric·frame·to·an·oriented·ellipse</li><li><b><a·href="vl_liop.html">vl_liop</a></b>·Local·Intensity·Order·Pattern·descriptor</li><li><b><a·href="vl_phow.html">vl_phow</a></b>·Extract·PHOW·features</li><li><b><a·href="vl_plotsiftdescriptor.html">vl_plotsiftdescriptor</a></b>·Plot·SIFT·descriptor</li><li><b><a·href="vl_plotss.html">vl_plotss</a></b>·Plot·scale·space</li><li><b><a·href="vl_sift.html">vl_sift</a></b>·Scale-Invariant·Feature·Transform</li><li><b><a·href="vl_siftdescriptor.html">vl_siftdescriptor</a></b>·Raw·SIFT·descriptor</li><li><b><a·href="vl_ubcmatch.html">vl_ubcmatch</a></b>·Match·SIFT·features</li><li><b><a·href="vl_ubcread.html">vl_ubcread</a></b>·Read·Lowe's·SIFT·implementation·data·files</li></ul> | ||
| 100 | ···· | 100 | ···· |
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| 9 | ····*·vl_compile·Compile·VLFeat·MEX·files | 9 | ····*·vl_compile·Compile·VLFeat·MEX·files |
| 10 | ····*·vl_demo·Run·VLFeat·demos | 10 | ····*·vl_demo·Run·VLFeat·demos |
| 11 | ····*·vl_harris·Harris·corner·strength | 11 | ····*·vl_harris·Harris·corner·strength |
| 12 | ····*·vl_help·VLFeat·toolbox·builtin·help | 12 | ····*·vl_help·VLFeat·toolbox·builtin·help |
| 13 | ····*·vl_noprefix·Create·a·prefix-less·version·of·VLFeat·commands | 13 | ····*·vl_noprefix·Create·a·prefix-less·version·of·VLFeat·commands |
| 14 | ····*·vl_root·Obtain·VLFeat·root·path | 14 | ····*·vl_root·Obtain·VLFeat·root·path |
| 15 | ····*·vl_setup·Add·VLFeat·Toolbox·to·the·path | 15 | ····*·vl_setup·Add·VLFeat·Toolbox·to·the·path |
| 16 | MSER | ||
| 17 | ····*·vl_erfill·Fill·extremal·region | ||
| 18 | ····*·vl_ertr·Transpose·exremal·regions·frames | ||
| 19 | ····*·vl_mser·Maximally·Stable·Extremal·Regions | ||
| 20 | QUICKSHIFT | ||
| 21 | ····*·vl_flatmap·Flatten·a·tree,·assigning·the·label·of·the·root·to·each·node | ||
| 22 | ····*·vl_imseg·Color·an·image·based·on·the·segmentation | ||
| 23 | ····*·vl_quickseg·Produce·a·quickshift·segmentation·of·a·grayscale·or·color | ||
| 24 | ······image | ||
| 25 | ····*·vl_quickshift·Quick·shift·image·segmentation | ||
| 26 | ····*·vl_quickvis·Create·an·edge·image·from·a·Quickshift·segmentation. | ||
| 27 | SPECIAL | ||
| 28 | ····*·vl_ddgaussian·Second·derivative·of·the·Gaussian·density·function | ||
| 29 | ····*·vl_dgaussian·Derivative·of·the·Gaussian·density·function | ||
| 30 | ····*·vl_dsigmoid·Derivative·of·the·sigmoid·function | ||
| 31 | ····*·vl_gaussian·Standard·Gaussian·density·function | ||
| 32 | ····*·vl_rcos·RCOS·function | ||
| 33 | ····*·vl_sigmoid·Sigmoid·function | ||
| 34 | GMM | ||
| 35 | ····*·vl_gmm·Learn·a·Gaussian·Mixture·Model·using·EM | ||
| 36 | SLIC | ||
| 37 | ····*·vl_slic·SLIC·superpixels | ||
| 38 | KMEANS | ||
| 39 | ····*·vl_hikmeans·Hierachical·integer·K-means | ||
| 40 | ····*·vl_hikmeanshist·Compute·histogram·of·quantized·data | ||
| 41 | ····*·vl_hikmeanspush·Push·data·down·an·integer·K-means·tree | ||
| 42 | ····*·vl_ikmeans·Integer·K-means | ||
| 43 | ····*·vl_ikmeanshist·Compute·histogram·of·quantized·data | ||
| 44 | ····*·vl_ikmeanspush·Project·data·on·integer·K-means·paritions | ||
| 45 | ····*·vl_kmeans·Cluster·data·using·k-means | ||
| 16 | MISC | 46 | MISC |
| 17 | ····*·vl_alldist2·Pairwise·distances | 47 | ····*·vl_alldist2·Pairwise·distances |
| 18 | ····*·vl_alphanum·Sort·strings·using·the·Alphanum·algorithm | 48 | ····*·vl_alphanum·Sort·strings·using·the·Alphanum·algorithm |
| 19 | ····*·vl_argparse·Parse·list·of·parameter-value·pairs. | 49 | ····*·vl_argparse·Parse·list·of·parameter-value·pairs. |
| 20 | ····*·vl_binsearch·Maps·data·to·bins | 50 | ····*·vl_binsearch·Maps·data·to·bins |
| 21 | ····*·vl_binsum·Binned·summation | 51 | ····*·vl_binsum·Binned·summation |
| 22 | ····*·vl_colsubset·Select·a·given·number·of·columns | 52 | ····*·vl_colsubset·Select·a·given·number·of·columns |
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| 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_aib.html">AIB·-·vl_aib</a></span> | 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_aib.html">AIB·-·vl_aib</a></span> |
| 63 | ····</div> | 63 | ····</div> |
| 64 | ··</div> | 64 | ··</div> |
| 65 | ··<div·id="content-section"> | 65 | ··<div·id="content-section"> |
| 66 | ····<div·id="content-wrapper"> | 66 | ····<div·id="content-wrapper"> |
| 67 | ······<div·id="content"> | 67 | ······<div·id="content"> |
| 68 | ········<div·class="mdoc"> | 68 | ········<div·class="mdoc"> |
| 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_ | 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_xmkdir.html">Prev</a></li><li><a·href="vl_aibcut.html">Next</a></li></ul><div·class="documentation"><p> |
| 70 | PARENTS·=·<a·href="vl_aib.html">VL_AIB</a>(PCX)·runs·Agglomerative·Information·Bottleneck | 70 | PARENTS·=·<a·href="vl_aib.html">VL_AIB</a>(PCX)·runs·Agglomerative·Information·Bottleneck |
| 71 | (AIB)·on·the·class-feature·co-occurrence·matrix·PCX·and·returns·a | 71 | (AIB)·on·the·class-feature·co-occurrence·matrix·PCX·and·returns·a |
| 72 | vector·PARENTS·representing·the·sequence·of·compressed·AIB | 72 | vector·PARENTS·representing·the·sequence·of·compressed·AIB |
| 73 | alphabets. | 73 | alphabets. |
| 74 | </p><p> | 74 | </p><p> |
| 75 | PCX·is·the·joint·probability·of·the·occurrence·of·the·class·label | 75 | PCX·is·the·joint·probability·of·the·occurrence·of·the·class·label |
| 76 | C·and·the·feature·value·X.·PCX·has·one·row·for·each·class·label | 76 | C·and·the·feature·value·X.·PCX·has·one·row·for·each·class·label |
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| 63 | ····</div> | 63 | ····</div> |
| 64 | ··</div> | 64 | ··</div> |
| 65 | ··<div·id="content-section"> | 65 | ··<div·id="content-section"> |
| 66 | ····<div·id="content-wrapper"> | 66 | ····<div·id="content-wrapper"> |
| 67 | ······<div·id="content"> | 67 | ······<div·id="content"> |
| 68 | ········<div·class="mdoc"> | 68 | ········<div·class="mdoc"> |
| 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_aibcutpush.html">Prev</a></li><li><a·href="vl_ | 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_aibcutpush.html">Prev</a></li><li><a·href="vl_hat.html">Next</a></li></ul><div·class="documentation"><p> |
| 70 | H·=·<a·href="vl_aibhist.html">VL_AIBHIST</a>(PARENTS,·DATA)·computes·the·histogram·of·the·data | 70 | H·=·<a·href="vl_aibhist.html">VL_AIBHIST</a>(PARENTS,·DATA)·computes·the·histogram·of·the·data |
| 71 | points·DATA·on·the·VL_AIB·tree·defined·by·PARENTS.·Each·element·of | 71 | points·DATA·on·the·VL_AIB·tree·defined·by·PARENTS.·Each·element·of |
| 72 | DATA·indexes·one·of·the·leaves·of·the·VL_AIB·tree. | 72 | DATA·indexes·one·of·the·leaves·of·the·VL_AIB·tree. |
| 73 | </p><p> | 73 | </p><p> |
| 74 | H·=·<a·href="vl_aibhist.html">VL_AIBHIST</a>(PARENTS,·DATA,·'HIST')·treats·DATA·as·an·histograms. | 74 | H·=·<a·href="vl_aibhist.html">VL_AIBHIST</a>(PARENTS,·DATA,·'HIST')·treats·DATA·as·an·histograms. |
| 75 | In·this·case·each·compoment·of·DATA·is·the·number·of·occurences·of | 75 | In·this·case·each·compoment·of·DATA·is·the·number·of·occurences·of |
| 76 | the·VL_AIB·leaves·corresponding·to·that·component. | 76 | the·VL_AIB·leaves·corresponding·to·that·component. |
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| 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_alldist2.html">MISC·-·vl_alldist2</a></span> | 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_alldist2.html">MISC·-·vl_alldist2</a></span> |
| 63 | ····</div> | 63 | ····</div> |
| 64 | ··</div> | 64 | ··</div> |
| 65 | ··<div·id="content-section"> | 65 | ··<div·id="content-section"> |
| 66 | ····<div·id="content-wrapper"> | 66 | ····<div·id="content-wrapper"> |
| 67 | ······<div·id="content"> | 67 | ······<div·id="content"> |
| 68 | ········<div·class="mdoc"> | 68 | ········<div·class="mdoc"> |
| 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_ | 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_kmeans.html">Prev</a></li><li><a·href="vl_alphanum.html">Next</a></li></ul><div·class="documentation"><p> |
| 70 | D·=·<a·href="vl_alldist2.html">VL_ALLDIST2</a>(X,Y)·returns·the·pairwise·distance·matrix·D·of·the | 70 | D·=·<a·href="vl_alldist2.html">VL_ALLDIST2</a>(X,Y)·returns·the·pairwise·distance·matrix·D·of·the |
| 71 | columns·of·S1·and·S2,·yielding | 71 | columns·of·S1·and·S2,·yielding |
| 72 | </p><pre> | 72 | </p><pre> |
| 73 | ··D(i,j)·=·sum·(X(:,i)·-·Y(:,j)).^2 | 73 | ··D(i,j)·=·sum·(X(:,i)·-·Y(:,j)).^2 |
| 74 | </pre><p> | 74 | </pre><p> |
| 75 | <a·href="vl_alldist2.html">VL_ALLDIST2</a>(X)·returns·the·pairwise·distance·matrix·fo·the·columns·of | 75 | <a·href="vl_alldist2.html">VL_ALLDIST2</a>(X)·returns·the·pairwise·distance·matrix·fo·the·columns·of |
| 76 | S,·yielding | 76 | S,·yielding |
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| 63 | ····</div> | 63 | ····</div> |
| 64 | ··</div> | 64 | ··</div> |
| 65 | ··<div·id="content-section"> | 65 | ··<div·id="content-section"> |
| 66 | ····<div·id="content-wrapper"> | 66 | ····<div·id="content-wrapper"> |
| 67 | ······<div·id="content"> | 67 | ······<div·id="content"> |
| 68 | ········<div·class="mdoc"> | 68 | ········<div·class="mdoc"> |
| 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_ | 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_rodr.html">Prev</a></li><li><a·href="vl_click.html">Next</a></li></ul><div·class="documentation"><p> |
| 70 | <a·href="vl_cf.html">VL_CF</a>()·creates·a·copy·of·the·current·figure·and·returns·<a·href="vl_cf.html">VL_CF</a>(H0) | 70 | <a·href="vl_cf.html">VL_CF</a>()·creates·a·copy·of·the·current·figure·and·returns·<a·href="vl_cf.html">VL_CF</a>(H0) |
| 71 | creates·a·copy·of·the·figure(s)·whose·handle·is·H0.··H·= | 71 | creates·a·copy·of·the·figure(s)·whose·handle·is·H0.··H·= |
| 72 | <a·href="vl_cf.html">VL_CF</a>(...)·returns·the·handles·of·the·copies. | 72 | <a·href="vl_cf.html">VL_CF</a>(...)·returns·the·handles·of·the·copies. |
| 73 | </p><p> | 73 | </p><p> |
| 74 | See·also:·<a·href="vl_help.html">VL_HELP</a>(). | 74 | See·also:·<a·href="vl_help.html">VL_HELP</a>(). |
| 75 | </p></div></div> | 75 | </p></div></div> |
| 76 | ······</div> | 76 | ······</div> |
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| 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_covdet.html">SIFT·-·vl_covdet</a></span> | 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_covdet.html">SIFT·-·vl_covdet</a></span> |
| 63 | ····</div> | 63 | ····</div> |
| 64 | ··</div> | 64 | ··</div> |
| 65 | ··<div·id="content-section"> | 65 | ··<div·id="content-section"> |
| 66 | ····<div·id="content-wrapper"> | 66 | ····<div·id="content-wrapper"> |
| 67 | ······<div·id="content"> | 67 | ······<div·id="content"> |
| 68 | ········<div·class="mdoc"> | 68 | ········<div·class="mdoc"> |
| 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_ | 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_vlad.html">Prev</a></li><li><a·href="vl_dsift.html">Next</a></li></ul><div·class="documentation"><p> |
| 70 | <a·href="vl_covdet.html">VL_COVDET</a>()·implements·a·number·of·co-variant·feature·detectors | 70 | <a·href="vl_covdet.html">VL_COVDET</a>()·implements·a·number·of·co-variant·feature·detectors |
| 71 | (e.g.,·DoG,·Harris-Affine,·Harris-Laplace)·and·corresponding | 71 | (e.g.,·DoG,·Harris-Affine,·Harris-Laplace)·and·corresponding |
| 72 | feature·descriptors·(SIFT,·raw·patches). | 72 | feature·descriptors·(SIFT,·raw·patches). |
| 73 | </p><p> | 73 | </p><p> |
| 74 | F·=·<a·href="vl_covdet.html">VL_COVDET</a>(I)·detects·upright·scale·and·translation·covariant | 74 | F·=·<a·href="vl_covdet.html">VL_COVDET</a>(I)·detects·upright·scale·and·translation·covariant |
| 75 | features·based·on·the·Difference·of·Gaussian·(Dog)·cornerness | 75 | features·based·on·the·Difference·of·Gaussian·(Dog)·cornerness |
| 76 | measure·from·image·I·(a·grayscale·image·of·class·SINGLE).·Each | 76 | measure·from·image·I·(a·grayscale·image·of·class·SINGLE).·Each |
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| 63 | ····</div> | 63 | ····</div> |
| 64 | ··</div> | 64 | ··</div> |
| 65 | ··<div·id="content-section"> | 65 | ··<div·id="content-section"> |
| 66 | ····<div·id="content-wrapper"> | 66 | ····<div·id="content-wrapper"> |
| 67 | ······<div·id="content"> | 67 | ······<div·id="content"> |
| 68 | ········<div·class="mdoc"> | 68 | ········<div·class="mdoc"> |
| 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_u | 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_quickvis.html">Prev</a></li><li><a·href="vl_dgaussian.html">Next</a></li></ul><div·class="documentation"><p> |
| 70 | Y=<a·href="vl_ddgaussian.html">VL_DDGAUSSIAN</a>(X)·computes·the·second·derivative·of·the·standard | 70 | Y=<a·href="vl_ddgaussian.html">VL_DDGAUSSIAN</a>(X)·computes·the·second·derivative·of·the·standard |
| 71 | Gaussian·density. | 71 | Gaussian·density. |
| 72 | </p><p> | 72 | </p><p> |
| 73 | To·obtain·the·second·derivative·of·the·Gaussian·density·of | 73 | To·obtain·the·second·derivative·of·the·Gaussian·density·of |
| 74 | standard·deviation·S,·do | 74 | standard·deviation·S,·do |
| 75 | </p><pre> | 75 | </p><pre> |
| 76 | ··Y·=·1/S^3·*·VL_DDGAUSSIAN(X/S)·. | 76 | ··Y·=·1/S^3·*·VL_DDGAUSSIAN(X/S)·. |
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| 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_dwaffine.html">IMOP·-·vl_dwaffine</a></span> | 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_dwaffine.html">IMOP·-·vl_dwaffine</a></span> |
| 63 | ····</div> | 63 | ····</div> |
| 64 | ··</div> | 64 | ··</div> |
| 65 | ··<div·id="content-section"> | 65 | ··<div·id="content-section"> |
| 66 | ····<div·id="content-wrapper"> | 66 | ····<div·id="content-wrapper"> |
| 67 | ······<div·id="content"> | 67 | ······<div·id="content"> |
| 68 | ········<div·class="mdoc"> | 68 | ········<div·class="mdoc"> |
| 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_s | 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_fisher.html">Prev</a></li><li><a·href="vl_imarray.html">Next</a></li></ul><div·class="documentation"><p> |
| 70 | [DWX,DWY]=<a·href="vl_dwaffine.html">VL_DWAFFINE</a>(X,Y)·returns·the·derivative·of·the·2-D·affine | 70 | [DWX,DWY]=<a·href="vl_dwaffine.html">VL_DWAFFINE</a>(X,Y)·returns·the·derivative·of·the·2-D·affine |
| 71 | warp·[WX;·WY]·=·[A·T]·[X;·Y]·with·respect·to·the·parameters·A,T | 71 | warp·[WX;·WY]·=·[A·T]·[X;·Y]·with·respect·to·the·parameters·A,T |
| 72 | computed·at·points·X,Y. | 72 | computed·at·points·X,Y. |
| 73 | </p><p> | 73 | </p><p> |
| 74 | See·also:·<a·href="vl_waffine.html">VL_WAFFINE</a>(),·<a·href="vl_help.html">VL_HELP</a>(). | 74 | See·also:·<a·href="vl_waffine.html">VL_WAFFINE</a>(),·<a·href="vl_help.html">VL_HELP</a>(). |
| 75 | </p></div></div> | 75 | </p></div></div> |
| 76 | ······</div> | 76 | ······</div> |
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| 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_erfill.html">MSER·-·vl_erfill</a></span> | 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_erfill.html">MSER·-·vl_erfill</a></span> |
| 63 | ····</div> | 63 | ····</div> |
| 64 | ··</div> | 64 | ··</div> |
| 65 | ··<div·id="content-section"> | 65 | ··<div·id="content-section"> |
| 66 | ····<div·id="content-wrapper"> | 66 | ····<div·id="content-wrapper"> |
| 67 | ······<div·id="content"> | 67 | ······<div·id="content"> |
| 68 | ········<div·class="mdoc"> | 68 | ········<div·class="mdoc"> |
| 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_ | 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_setup.html">Prev</a></li><li><a·href="vl_ertr.html">Next</a></li></ul><div·class="documentation"><p> |
| 70 | MEMBERS=<a·href="vl_erfill.html">VL_ERFILL</a>(I,ER)·returns·the·list·MEMBERS·of·the·pixels·which | 70 | MEMBERS=<a·href="vl_erfill.html">VL_ERFILL</a>(I,ER)·returns·the·list·MEMBERS·of·the·pixels·which |
| 71 | belongs·to·the·extremal·region·represented·by·the·pixel·ER. | 71 | belongs·to·the·extremal·region·represented·by·the·pixel·ER. |
| 72 | </p><p> | 72 | </p><p> |
| 73 | The·selected·region·is·the·one·that·contains·pixel·ER·and·of | 73 | The·selected·region·is·the·one·that·contains·pixel·ER·and·of |
| 74 | intensity·I(ER). | 74 | intensity·I(ER). |
| 75 | </p><p> | 75 | </p><p> |
| 76 | I·must·be·of·class·UINT8·and·ER·must·be·a·(scalar)·index·of·the | 76 | I·must·be·of·class·UINT8·and·ER·must·be·a·(scalar)·index·of·the |
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| 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_fisher.html">FISHER·-·vl_fisher</a></span> | 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_fisher.html">FISHER·-·vl_fisher</a></span> |
| 63 | ····</div> | 63 | ····</div> |
| 64 | ··</div> | 64 | ··</div> |
| 65 | ··<div·id="content-section"> | 65 | ··<div·id="content-section"> |
| 66 | ····<div·id="content-wrapper"> | 66 | ····<div·id="content-wrapper"> |
| 67 | ······<div·id="content"> | 67 | ······<div·id="content"> |
| 68 | ········<div·class="mdoc"> | 68 | ········<div·class="mdoc"> |
| 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_ | 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_tpfp.html">Prev</a></li><li><a·href="vl_dwaffine.html">Next</a></li></ul><div·class="documentation"><p> |
| 70 | ENC·=·<a·href="vl_fisher.html">VL_FISHER</a>(X,·MEANS,·COVARIANCES,·PRIORS)·computes·the·Fisher | 70 | ENC·=·<a·href="vl_fisher.html">VL_FISHER</a>(X,·MEANS,·COVARIANCES,·PRIORS)·computes·the·Fisher |
| 71 | vector·encoding·of·the·vectors·X·relative·to·the·Gaussian·mixture | 71 | vector·encoding·of·the·vectors·X·relative·to·the·Gaussian·mixture |
| 72 | model·with·means·MEANS,·covariances·COVARIANCES,·and·prior·mode | 72 | model·with·means·MEANS,·covariances·COVARIANCES,·and·prior·mode |
| 73 | probabilities·PRIORS. | 73 | probabilities·PRIORS. |
| 74 | </p><p> | 74 | </p><p> |
| 75 | X·has·one·column·per·data·vector·(e.g.·a·SIFT·descriptor),·and | 75 | X·has·one·column·per·data·vector·(e.g.·a·SIFT·descriptor),·and |
| 76 | MEANS·and·COVARIANCES·one·column·per·GMM·component·(covariance | 76 | MEANS·and·COVARIANCES·one·column·per·GMM·component·(covariance |
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| 63 | ····</div> | 63 | ····</div> |
| 64 | ··</div> | 64 | ··</div> |
| 65 | ··<div·id="content-section"> | 65 | ··<div·id="content-section"> |
| 66 | ····<div·id="content-wrapper"> | 66 | ····<div·id="content-wrapper"> |
| 67 | ······<div·id="content"> | 67 | ······<div·id="content"> |
| 68 | ········<div·class="mdoc"> | 68 | ········<div·class="mdoc"> |
| 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_ | 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_mser.html">Prev</a></li><li><a·href="vl_imseg.html">Next</a></li></ul><div·class="documentation"><p> |
| 70 | [LABELS·CLUSTERS]·=·<a·href="vl_flatmap.html">VL_FLATMAP</a>(MAP)·labels·each·tree·of·the·forest·contained | 70 | [LABELS·CLUSTERS]·=·<a·href="vl_flatmap.html">VL_FLATMAP</a>(MAP)·labels·each·tree·of·the·forest·contained |
| 71 | in·MAP.·LABELS·contains·the·linear·index·of·the·root·node·in·MAP,·CLUSTERS | 71 | in·MAP.·LABELS·contains·the·linear·index·of·the·root·node·in·MAP,·CLUSTERS |
| 72 | instead·contains·a·label·between·1·and·the·number·of·clusters. | 72 | instead·contains·a·label·between·1·and·the·number·of·clusters. |
| 73 | </p><p> | 73 | </p><p> |
| 74 | See·also:·<a·href="vl_help.html">VL_HELP</a>(). | 74 | See·also:·<a·href="vl_help.html">VL_HELP</a>(). |
| 75 | </p></div></div> | 75 | </p></div></div> |
| 76 | ······</div> | 76 | ······</div> |
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| 63 | ····</div> | 63 | ····</div> |
| 64 | ··</div> | 64 | ··</div> |
| 65 | ··<div·id="content-section"> | 65 | ··<div·id="content-section"> |
| 66 | ····<div·id="content-wrapper"> | 66 | ····<div·id="content-wrapper"> |
| 67 | ······<div·id="content"> | 67 | ······<div·id="content"> |
| 68 | ········<div·class="mdoc"> | 68 | ········<div·class="mdoc"> |
| 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_ | 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_sigmoid.html">Prev</a></li><li><a·href="vl_slic.html">Next</a></li></ul><div·class="documentation"><p> |
| 70 | [MEANS,·COVARIANCES,·PRIORS]·=·<a·href="vl_gmm.html">VL_GMM</a>(X,·NUMCLUSTERS)·fits·a·GMM·with | 70 | [MEANS,·COVARIANCES,·PRIORS]·=·<a·href="vl_gmm.html">VL_GMM</a>(X,·NUMCLUSTERS)·fits·a·GMM·with |
| 71 | NUMCLUSTERS·components·to·the·data·X.·Each·column·of·X·represent·a | 71 | NUMCLUSTERS·components·to·the·data·X.·Each·column·of·X·represent·a |
| 72 | sample·point.·X·may·be·either·SINGLE·or·DOUBLE.·MEANS,·COVARIANCES,·and | 72 | sample·point.·X·may·be·either·SINGLE·or·DOUBLE.·MEANS,·COVARIANCES,·and |
| 73 | PRIORS·are·respectively·the·means,·the·diagonal·covariances,·and | 73 | PRIORS·are·respectively·the·means,·the·diagonal·covariances,·and |
| 74 | the·prior·probabilities·of·the·Guassian·modes.·MEANS·and·COVARIANCES | 74 | the·prior·probabilities·of·the·Guassian·modes.·MEANS·and·COVARIANCES |
| 75 | have·the·same·number·of·rows·as·X·and·NUMCLUSTERS·columns·with·one | 75 | have·the·same·number·of·rows·as·X·and·NUMCLUSTERS·columns·with·one |
| 76 | column·per·mode.·PRIORS·is·a·row·vector·with·NUMCLUSTER·entries | 76 | column·per·mode.·PRIORS·is·a·row·vector·with·NUMCLUSTER·entries |
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| 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_hat.html">GEOMETRY·-·vl_hat</a></span> | 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_hat.html">GEOMETRY·-·vl_hat</a></span> |
| 63 | ····</div> | 63 | ····</div> |
| 64 | ··</div> | 64 | ··</div> |
| 65 | ··<div·id="content-section"> | 65 | ··<div·id="content-section"> |
| 66 | ····<div·id="content-wrapper"> | 66 | ····<div·id="content-wrapper"> |
| 67 | ······<div·id="content"> | 67 | ······<div·id="content"> |
| 68 | ········<div·class="mdoc"> | 68 | ········<div·class="mdoc"> |
| 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_ | 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_aibhist.html">Prev</a></li><li><a·href="vl_ihat.html">Next</a></li></ul><div·class="documentation"><p> |
| 70 | H·=·<a·href="vl_hat.html">VL_HAT</a>(OM)·returns·the·skew·symmetric·matrix·by·taking·the·"hat" | 70 | H·=·<a·href="vl_hat.html">VL_HAT</a>(OM)·returns·the·skew·symmetric·matrix·by·taking·the·"hat" |
| 71 | of·the·3D·vector·OM. | 71 | of·the·3D·vector·OM. |
| 72 | </p><p> | 72 | </p><p> |
| 73 | See·also:·<a·href="vl_ihat.html">VL_IHAT</a>(),·<a·href="vl_help.html">VL_HELP</a>(). | 73 | See·also:·<a·href="vl_ihat.html">VL_IHAT</a>(),·<a·href="vl_help.html">VL_HELP</a>(). |
| 74 | </p></div></div> | 74 | </p></div></div> |
| 75 | ······</div> | 75 | ······</div> |
| 76 | ······<div·class="clear"></div> | 76 | ······<div·class="clear"></div> |
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| 63 | ····</div> | 63 | ····</div> |
| 64 | ··</div> | 64 | ··</div> |
| 65 | ··<div·id="content-section"> | 65 | ··<div·id="content-section"> |
| 66 | ····<div·id="content-wrapper"> | 66 | ····<div·id="content-wrapper"> |
| 67 | ······<div·id="content"> | 67 | ······<div·id="content"> |
| 68 | ········<div·class="mdoc"> | 68 | ········<div·class="mdoc"> |
| 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_s | 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_slic.html">Prev</a></li><li><a·href="vl_hikmeanshist.html">Next</a></li></ul><div·class="documentation"><p> |
| 70 | [TREE,ASGN]·=·<a·href="vl_hikmeans.html">VL_HIKMEANS</a>(DATA,K,NLEAVES)·applies·integer·K-menas | 70 | [TREE,ASGN]·=·<a·href="vl_hikmeans.html">VL_HIKMEANS</a>(DATA,K,NLEAVES)·applies·integer·K-menas |
| 71 | recursively·to·cluster·the·data·DATA,·returing·a·structure·TREE | 71 | recursively·to·cluster·the·data·DATA,·returing·a·structure·TREE |
| 72 | representing·the·clusters·and·a·vector·ASGN·with·the·data·to | 72 | representing·the·clusters·and·a·vector·ASGN·with·the·data·to |
| 73 | cluster·assignments.·The·depth·of·the·recursive·partition·is | 73 | cluster·assignments.·The·depth·of·the·recursive·partition·is |
| 74 | computed·so·that·at·least·NLEAVES·are·generated. | 74 | computed·so·that·at·least·NLEAVES·are·generated. |
| 75 | </p><p> | 75 | </p><p> |
| 76 | <a·href="vl_hikmeans.html">VL_HIKMEANS</a>()·is·built·on·top·of·<a·href="vl_ikmeans.html">VL_IKMEANS</a>()·and·requires·the | 76 | <a·href="vl_hikmeans.html">VL_HIKMEANS</a>()·is·built·on·top·of·<a·href="vl_ikmeans.html">VL_IKMEANS</a>()·and·requires·the |
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| 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_kmeans.html">KMEANS·-·vl_kmeans</a></span> | 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_kmeans.html">KMEANS·-·vl_kmeans</a></span> |
| 63 | ····</div> | 63 | ····</div> |
| 64 | ··</div> | 64 | ··</div> |
| 65 | ··<div·id="content-section"> | 65 | ··<div·id="content-section"> |
| 66 | ····<div·id="content-wrapper"> | 66 | ····<div·id="content-wrapper"> |
| 67 | ······<div·id="content"> | 67 | ······<div·id="content"> |
| 68 | ········<div·class="mdoc"> | 68 | ········<div·class="mdoc"> |
| 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_ikmeanspush.html">Prev</a></li><li><a·href="vl_ai | 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_ikmeanspush.html">Prev</a></li><li><a·href="vl_alldist2.html">Next</a></li></ul><div·class="documentation"><p> |
| 70 | [C,·A]·=·<a·href="vl_kmeans.html">VL_KMEANS</a>(X,·NUMCENTERS)·clusters·the·columns·of·the | 70 | [C,·A]·=·<a·href="vl_kmeans.html">VL_KMEANS</a>(X,·NUMCENTERS)·clusters·the·columns·of·the |
| 71 | matrix·X·in·NUMCENTERS·centers·C·using·k-means.·X·may·be·either | 71 | matrix·X·in·NUMCENTERS·centers·C·using·k-means.·X·may·be·either |
| 72 | SINGLE·or·DOUBLE.·C·has·the·same·number·of·rows·of·X·and·NUMCENTER | 72 | SINGLE·or·DOUBLE.·C·has·the·same·number·of·rows·of·X·and·NUMCENTER |
| 73 | columns,·with·one·column·per·center.·A·is·a·UINT32·row·vector | 73 | columns,·with·one·column·per·center.·A·is·a·UINT32·row·vector |
| 74 | specifying·the·assignments·of·the·data·X·to·the·NUMCENTER | 74 | specifying·the·assignments·of·the·data·X·to·the·NUMCENTER |
| 75 | centers. | 75 | centers. |
| 76 | </p><p> | 76 | </p><p> |
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| 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_mser.html">MSER·-·vl_mser</a></span> | 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_mser.html">MSER·-·vl_mser</a></span> |
| 63 | ····</div> | 63 | ····</div> |
| 64 | ··</div> | 64 | ··</div> |
| 65 | ··<div·id="content-section"> | 65 | ··<div·id="content-section"> |
| 66 | ····<div·id="content-wrapper"> | 66 | ····<div·id="content-wrapper"> |
| 67 | ······<div·id="content"> | 67 | ······<div·id="content"> |
| 68 | ········<div·class="mdoc"> | 68 | ········<div·class="mdoc"> |
| 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_ertr.html">Prev</a></li><li><a·href="vl_ | 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_ertr.html">Prev</a></li><li><a·href="vl_flatmap.html">Next</a></li></ul><div·class="documentation"><p> |
| 70 | R=<a·href="vl_mser.html">VL_MSER</a>(I)·computes·the·Maximally·Stable·Extremal·Regions·(MSER) | 70 | R=<a·href="vl_mser.html">VL_MSER</a>(I)·computes·the·Maximally·Stable·Extremal·Regions·(MSER) |
| 71 | [1]·of·image·I·with·stability·threshold·DELTA.·I·is·any·array·of | 71 | [1]·of·image·I·with·stability·threshold·DELTA.·I·is·any·array·of |
| 72 | class·UINT8.·R·is·a·vector·of·region·seeds. | 72 | class·UINT8.·R·is·a·vector·of·region·seeds. |
| 73 | </p><p> | 73 | </p><p> |
| 74 | A·(maximally·stable)·extremal·region·is·just·a·connected·component | 74 | A·(maximally·stable)·extremal·region·is·just·a·connected·component |
| 75 | of·one·of·the·level·sets·of·the·image·I.··An·extremal·region·can | 75 | of·one·of·the·level·sets·of·the·image·I.··An·extremal·region·can |
| 76 | be·recovered·from·a·seed·X·as·the·connected·component·of·the·level | 76 | be·recovered·from·a·seed·X·as·the·connected·component·of·the·level |
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| 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_quickvis.html">QUICKSHIFT·-·vl_quickvis</a></span> | 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_quickvis.html">QUICKSHIFT·-·vl_quickvis</a></span> |
| 63 | ····</div> | 63 | ····</div> |
| 64 | ··</div> | 64 | ··</div> |
| 65 | ··<div·id="content-section"> | 65 | ··<div·id="content-section"> |
| 66 | ····<div·id="content-wrapper"> | 66 | ····<div·id="content-wrapper"> |
| 67 | ······<div·id="content"> | 67 | ······<div·id="content"> |
| 68 | ········<div·class="mdoc"> | 68 | ········<div·class="mdoc"> |
| 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_quickshift.html">Prev</a></li><li><a·href="vl_ | 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_quickshift.html">Prev</a></li><li><a·href="vl_ddgaussian.html">Next</a></li></ul><div·class="documentation"><p> |
| 70 | IEDGE·=·<a·href="vl_quickvis.html">VL_QUICKVIS</a>(I,·RATIO,·KERNELSIZE,·MAXDIST,·MAXCUTS)·creates·an·edge | 70 | IEDGE·=·<a·href="vl_quickvis.html">VL_QUICKVIS</a>(I,·RATIO,·KERNELSIZE,·MAXDIST,·MAXCUTS)·creates·an·edge |
| 71 | stability·image·from·a·Quickshift·segmentation.·RATIO·controls·the·tradeoff | 71 | stability·image·from·a·Quickshift·segmentation.·RATIO·controls·the·tradeoff |
| 72 | between·color·consistency·and·spatial·consistency·(See·VL_QUICKSEG)·and | 72 | between·color·consistency·and·spatial·consistency·(See·VL_QUICKSEG)·and |
| 73 | KERNELSIZE·controls·the·bandwidth·of·the·density·estimator·(See·VL_QUICKSEG, | 73 | KERNELSIZE·controls·the·bandwidth·of·the·density·estimator·(See·VL_QUICKSEG, |
| 74 | VL_QUICKSHIFT).·MAXDIST·is·the·maximum·distance·between·neighbors·which | 74 | VL_QUICKSHIFT).·MAXDIST·is·the·maximum·distance·between·neighbors·which |
| 75 | increase·the·density. | 75 | increase·the·density. |
| 76 | </p><p> | 76 | </p><p> |
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| 63 | ····</div> | 63 | ····</div> |
| 64 | ··</div> | 64 | ··</div> |
| 65 | ··<div·id="content-section"> | 65 | ··<div·id="content-section"> |
| 66 | ····<div·id="content-wrapper"> | 66 | ····<div·id="content-wrapper"> |
| 67 | ······<div·id="content"> | 67 | ······<div·id="content"> |
| 68 | ········<div·class="mdoc"> | 68 | ········<div·class="mdoc"> |
| 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_irodr.html">Prev</a></li></ul><div·class="documentation"><p> | 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_irodr.html">Prev</a></li><li><a·href="vl_cf.html">Next</a></li></ul><div·class="documentation"><p> |
| 70 | R·=·<a·href="vl_rodr.html">VL_RODR</a>(OM)·where·OM·a·3-dimensional·column·vector·computes·the | 70 | R·=·<a·href="vl_rodr.html">VL_RODR</a>(OM)·where·OM·a·3-dimensional·column·vector·computes·the |
| 71 | Rodrigues'·formula·of·OM,·returning·the·rotation·matrix·R·= | 71 | Rodrigues'·formula·of·OM,·returning·the·rotation·matrix·R·= |
| 72 | expm(vl_hat(OM)). | 72 | expm(vl_hat(OM)). |
| 73 | </p><p> | 73 | </p><p> |
| 74 | [R,DR]·=·<a·href="vl_rodr.html">VL_RODR</a>(OM)·computes·also·the·derivative·of·the·Rodrigues | 74 | [R,DR]·=·<a·href="vl_rodr.html">VL_RODR</a>(OM)·computes·also·the·derivative·of·the·Rodrigues |
| 75 | formula.·In·matrix·notation·this·is·the·expression | 75 | formula.·In·matrix·notation·this·is·the·expression |
| 76 | </p><pre> | 76 | </p><pre> |
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| 4 | Documentation>MATLAB_API>GEOMETRY_-_vl_rodr | 4 | Documentation>MATLAB_API>GEOMETRY_-_vl_rodr |
| 5 | ····*·Index | 5 | ····*·Index |
| 6 | ····*·Prev | 6 | ····*·Prev |
| 7 | ····*·Next | ||
| 7 | R·=·VL_RODR(OM)·where·OM·a·3-dimensional·column·vector·computes·the·Rodrigues' | 8 | R·=·VL_RODR(OM)·where·OM·a·3-dimensional·column·vector·computes·the·Rodrigues' |
| 8 | formula·of·OM,·returning·the·rotation·matrix·R·=·expm(vl_hat(OM)). | 9 | formula·of·OM,·returning·the·rotation·matrix·R·=·expm(vl_hat(OM)). |
| 9 | [R,DR]·=·VL_RODR(OM)·computes·also·the·derivative·of·the·Rodrigues·formula.·In | 10 | [R,DR]·=·VL_RODR(OM)·computes·also·the·derivative·of·the·Rodrigues·formula.·In |
| 10 | matrix·notation·this·is·the·expression | 11 | matrix·notation·this·is·the·expression |
| 11 | ········d(vec·expm(vl_hat(OM))·) | 12 | ········d(vec·expm(vl_hat(OM))·) |
| 12 | ··dR·=·----------------------. | 13 | ··dR·=·----------------------. |
| 13 | ···············d·om^T | 14 | ···············d·om^T |
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| 63 | ····</div> | 63 | ····</div> |
| 64 | ··</div> | 64 | ··</div> |
| 65 | ··<div·id="content-section"> | 65 | ··<div·id="content-section"> |
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| 68 | ········<div·class="mdoc"> | 68 | ········<div·class="mdoc"> |
| 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_root.html">Prev</a></li><li><a·href="vl_ | 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_root.html">Prev</a></li><li><a·href="vl_erfill.html">Next</a></li></ul><div·class="documentation"><p> |
| 70 | PATH·=·<a·href="vl_setup.html">VL_SETUP</a>()·adds·the·VLFeat·Toolbox·to·MATLAB·path·and | 70 | PATH·=·<a·href="vl_setup.html">VL_SETUP</a>()·adds·the·VLFeat·Toolbox·to·MATLAB·path·and |
| 71 | returns·the·path·PATH·to·the·VLFeat·package. | 71 | returns·the·path·PATH·to·the·VLFeat·package. |
| 72 | </p><p> | 72 | </p><p> |
| 73 | <a·href="vl_setup.html">VL_SETUP</a>('NOPREFIX')·adds·aliases·to·each·function·that·do·not | 73 | <a·href="vl_setup.html">VL_SETUP</a>('NOPREFIX')·adds·aliases·to·each·function·that·do·not |
| 74 | contain·the·VL_·prefix.·For·example,·with·this·option·it·is | 74 | contain·the·VL_·prefix.·For·example,·with·this·option·it·is |
| 75 | possible·to·use·SIFT()·instead·of·<a·href="vl_sift.html">VL_SIFT</a>(). | 75 | possible·to·use·SIFT()·instead·of·<a·href="vl_sift.html">VL_SIFT</a>(). |
| 76 | </p><p> | 76 | </p><p> |
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| 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_sigmoid.html">SPECIAL·-·vl_sigmoid</a></span> | 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_sigmoid.html">SPECIAL·-·vl_sigmoid</a></span> |
| 63 | ····</div> | 63 | ····</div> |
| 64 | ··</div> | 64 | ··</div> |
| 65 | ··<div·id="content-section"> | 65 | ··<div·id="content-section"> |
| 66 | ····<div·id="content-wrapper"> | 66 | ····<div·id="content-wrapper"> |
| 67 | ······<div·id="content"> | 67 | ······<div·id="content"> |
| 68 | ········<div·class="mdoc"> | 68 | ········<div·class="mdoc"> |
| 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_rcos.html">Prev</a></li><li><a·href="vl_ | 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_rcos.html">Prev</a></li><li><a·href="vl_gmm.html">Next</a></li></ul><div·class="documentation"><p> |
| 70 | Y·=·<a·href="vl_sigmoid.html">VL_SIGMOID</a>(X)·returns | 70 | Y·=·<a·href="vl_sigmoid.html">VL_SIGMOID</a>(X)·returns |
| 71 | </p><pre> | 71 | </p><pre> |
| 72 | ·Y·=·1·./·(1·+·EXP(X))·; | 72 | ·Y·=·1·./·(1·+·EXP(X))·; |
| 73 | </pre><dl><dt> | 73 | </pre><dl><dt> |
| 74 | Remark | 74 | Remark |
| 75 | </dt><dd><p> | 75 | </dt><dd><p> |
| 76 | Useful·properties·of·the·sigmoid·function·are: | 76 | Useful·properties·of·the·sigmoid·function·are: |
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| 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_slic.html">SLIC·-·vl_slic</a></span> | 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_slic.html">SLIC·-·vl_slic</a></span> |
| 63 | ····</div> | 63 | ····</div> |
| 64 | ··</div> | 64 | ··</div> |
| 65 | ··<div·id="content-section"> | 65 | ··<div·id="content-section"> |
| 66 | ····<div·id="content-wrapper"> | 66 | ····<div·id="content-wrapper"> |
| 67 | ······<div·id="content"> | 67 | ······<div·id="content"> |
| 68 | ········<div·class="mdoc"> | 68 | ········<div·class="mdoc"> |
| 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_ | 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_gmm.html">Prev</a></li><li><a·href="vl_hikmeans.html">Next</a></li></ul><div·class="documentation"><p> |
| 70 | SEGMENTS·=·<a·href="vl_slic.html">VL_SLIC</a>(IM,·REGIONSIZE,·REGULARIZER)·extracts·the·SLIC | 70 | SEGMENTS·=·<a·href="vl_slic.html">VL_SLIC</a>(IM,·REGIONSIZE,·REGULARIZER)·extracts·the·SLIC |
| 71 | superpixes·[1]·from·image·IM.·REGIONSIZE·is·the·starting·size·of | 71 | superpixes·[1]·from·image·IM.·REGIONSIZE·is·the·starting·size·of |
| 72 | the·superpixels·and·REGULARIZER·is·the·trades-off·appearance·for | 72 | the·superpixels·and·REGULARIZER·is·the·trades-off·appearance·for |
| 73 | spatial·regularity·when·clustering·(a·larger·value·results·in·more | 73 | spatial·regularity·when·clustering·(a·larger·value·results·in·more |
| 74 | spatial·regularization).·SEGMENTS·is·a·UINT32·array·containing·the | 74 | spatial·regularization).·SEGMENTS·is·a·UINT32·array·containing·the |
| 75 | superpixel·identifier·for·each·image·pixel. | 75 | superpixel·identifier·for·each·image·pixel. |
| 76 | </p><p> | 76 | </p><p> |
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| 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_tpfp.html">PLOTOP·-·vl_tpfp</a></span> | 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_tpfp.html">PLOTOP·-·vl_tpfp</a></span> |
| 63 | ····</div> | 63 | ····</div> |
| 64 | ··</div> | 64 | ··</div> |
| 65 | ··<div·id="content-section"> | 65 | ··<div·id="content-section"> |
| 66 | ····<div·id="content-wrapper"> | 66 | ····<div·id="content-wrapper"> |
| 67 | ······<div·id="content"> | 67 | ······<div·id="content"> |
| 68 | ········<div·class="mdoc"> | 68 | ········<div·class="mdoc"> |
| 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_tightsubplot.html">Prev</a></li><li><a·href="vl_ | 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_tightsubplot.html">Prev</a></li><li><a·href="vl_fisher.html">Next</a></li></ul><div·class="documentation"><p> |
| 70 | This·is·an·helper·function·used·by·<a·href="vl_pr.html">VL_PR</a>(),·<a·href="vl_roc.html">VL_ROC</a>(),·<a·href="vl_det.html">VL_DET</a>(). | 70 | This·is·an·helper·function·used·by·<a·href="vl_pr.html">VL_PR</a>(),·<a·href="vl_roc.html">VL_ROC</a>(),·<a·href="vl_det.html">VL_DET</a>(). |
| 71 | </p><p> | 71 | </p><p> |
| 72 | See·also:·<a·href="vl_pr.html">VL_PR</a>(),·<a·href="vl_roc.html">VL_ROC</a>(),·<a·href="vl_det.html">VL_DET</a>(),·<a·href="vl_help.html">VL_HELP</a>(). | 72 | See·also:·<a·href="vl_pr.html">VL_PR</a>(),·<a·href="vl_roc.html">VL_ROC</a>(),·<a·href="vl_det.html">VL_DET</a>(),·<a·href="vl_help.html">VL_HELP</a>(). |
| 73 | </p></div></div> | 73 | </p></div></div> |
| 74 | ······</div> | 74 | ······</div> |
| 75 | ······<div·class="clear"></div> | 75 | ······<div·class="clear"></div> |
| 76 | ····</div> | 76 | ····</div> |
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| 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_ubcread.html">SIFT·-·vl_ubcread</a></span> | 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_ubcread.html">SIFT·-·vl_ubcread</a></span> |
| 63 | ····</div> | 63 | ····</div> |
| 64 | ··</div> | 64 | ··</div> |
| 65 | ··<div·id="content-section"> | 65 | ··<div·id="content-section"> |
| 66 | ····<div·id="content-wrapper"> | 66 | ····<div·id="content-wrapper"> |
| 67 | ······<div·id="content"> | 67 | ······<div·id="content"> |
| 68 | ········<div·class="mdoc"> | 68 | ········<div·class="mdoc"> |
| 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_ubcmatch.html">Prev</a></li>< | 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_ubcmatch.html">Prev</a></li></ul><div·class="documentation"><p> |
| 70 | [F,D]·=·<a·href="vl_ubcread.html">VL_UBCREAD</a>(FILE)·reads·the·frames·F·and·the·descriptors·D | 70 | [F,D]·=·<a·href="vl_ubcread.html">VL_UBCREAD</a>(FILE)·reads·the·frames·F·and·the·descriptors·D |
| 71 | from·FILE·in·UBC·(Lowe's·original·implementation·of·SIFT)·format | 71 | from·FILE·in·UBC·(Lowe's·original·implementation·of·SIFT)·format |
| 72 | and·returns·F·and·D·as·defined·by·<a·href="vl_sift.html">VL_SIFT</a>(). | 72 | and·returns·F·and·D·as·defined·by·<a·href="vl_sift.html">VL_SIFT</a>(). |
| 73 | </p><p> | 73 | </p><p> |
| 74 | <a·href="vl_ubcread.html">VL_UBCREAD</a>(FILE,·'FORMAT',·'OXFORD')·assumes·the·format·used·by | 74 | <a·href="vl_ubcread.html">VL_UBCREAD</a>(FILE,·'FORMAT',·'OXFORD')·assumes·the·format·used·by |
| 75 | Oxford·VGG·implementations·. | 75 | Oxford·VGG·implementations·. |
| 76 | </p><p> | 76 | </p><p> |
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| 4 | Documentation>MATLAB_API>SIFT_-_vl_ubcread | 4 | Documentation>MATLAB_API>SIFT_-_vl_ubcread |
| 5 | ····*·Index | 5 | ····*·Index |
| 6 | ····*·Prev | 6 | ····*·Prev |
| 7 | ····*·Next | ||
| 8 | [F,D]·=·VL_UBCREAD(FILE)·reads·the·frames·F·and·the·descriptors·D·from·FILE·in | 7 | [F,D]·=·VL_UBCREAD(FILE)·reads·the·frames·F·and·the·descriptors·D·from·FILE·in |
| 9 | UBC·(Lowe's·original·implementation·of·SIFT)·format·and·returns·F·and·D·as | 8 | UBC·(Lowe's·original·implementation·of·SIFT)·format·and·returns·F·and·D·as |
| 10 | defined·by·VL_SIFT(). | 9 | defined·by·VL_SIFT(). |
| 11 | VL_UBCREAD(FILE,·'FORMAT',·'OXFORD')·assumes·the·format·used·by·Oxford·VGG | 10 | VL_UBCREAD(FILE,·'FORMAT',·'OXFORD')·assumes·the·format·used·by·Oxford·VGG |
| 12 | implementations·. | 11 | implementations·. |
| 13 | See·also:·VL_SIFT(),·VL_HELP(). | 12 | See·also:·VL_SIFT(),·VL_HELP(). |
| 14 | 2007-14,18·The·VLFeat·Authors | 13 | 2007-14,18·The·VLFeat·Authors |
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| 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_vlad.html">VLAD·-·vl_vlad</a></span> | 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_vlad.html">VLAD·-·vl_vlad</a></span> |
| 63 | ····</div> | 63 | ····</div> |
| 64 | ··</div> | 64 | ··</div> |
| 65 | ··<div·id="content-section"> | 65 | ··<div·id="content-section"> |
| 66 | ····<div·id="content-wrapper"> | 66 | ····<div·id="content-wrapper"> |
| 67 | ······<div·id="content"> | 67 | ······<div·id="content"> |
| 68 | ········<div·class="mdoc"> | 68 | ········<div·class="mdoc"> |
| 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_ | 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_xyz2rgb.html">Prev</a></li><li><a·href="vl_covdet.html">Next</a></li></ul><div·class="documentation"><p> |
| 70 | ENC·=·<a·href="vl_vlad.html">VL_VLAD</a>(X,·MEANS,·ASSIGNMENTS)·computes·the·VLAD | 70 | ENC·=·<a·href="vl_vlad.html">VL_VLAD</a>(X,·MEANS,·ASSIGNMENTS)·computes·the·VLAD |
| 71 | encoding·of·the·vectors·X·relative·to·cluster·centers·MEANS·and | 71 | encoding·of·the·vectors·X·relative·to·cluster·centers·MEANS·and |
| 72 | vector-to-cluster·soft·assignments·ASSIGNMENTS. | 72 | vector-to-cluster·soft·assignments·ASSIGNMENTS. |
| 73 | </p><p> | 73 | </p><p> |
| 74 | X·has·one·column·per·data·vector·(e.g.·a·SIFT·descriptor),·and | 74 | X·has·one·column·per·data·vector·(e.g.·a·SIFT·descriptor),·and |
| 75 | MEANS·has·one·column·per·component.·Usually·one·has·one·component | 75 | MEANS·has·one·column·per·component.·Usually·one·has·one·component |
| 76 | per·KMeans·cluster·and·MEANS·are·the·KMeans·centers.·X·and·MEANS | 76 | per·KMeans·cluster·and·MEANS·are·the·KMeans·centers.·X·and·MEANS |
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| 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_xmkdir.html">MISC·-·vl_xmkdir</a></span> | 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_xmkdir.html">MISC·-·vl_xmkdir</a></span> |
| 63 | ····</div> | 63 | ····</div> |
| 64 | ··</div> | 64 | ··</div> |
| 65 | ··<div·id="content-section"> | 65 | ··<div·id="content-section"> |
| 66 | ····<div·id="content-wrapper"> | 66 | ····<div·id="content-wrapper"> |
| 67 | ······<div·id="content"> | 67 | ······<div·id="content"> |
| 68 | ········<div·class="mdoc"> | 68 | ········<div·class="mdoc"> |
| 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_whistc.html">Prev</a></li><li><a·href="vl_ | 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_whistc.html">Prev</a></li><li><a·href="vl_aib.html">Next</a></li></ul><div·class="documentation"><p> |
| 70 | <a·href="vl_xmkdir.html">VL_XMKDIR</a>(PATH)·creates·all·directory·specified·by·PATH·if·they | 70 | <a·href="vl_xmkdir.html">VL_XMKDIR</a>(PATH)·creates·all·directory·specified·by·PATH·if·they |
| 71 | do·not·exist·(existing·directories·are·skipped). | 71 | do·not·exist·(existing·directories·are·skipped). |
| 72 | </p><p> | 72 | </p><p> |
| 73 | The·function·is·meant·as·a·silent·replacement·of·MATLAB's·builtin | 73 | The·function·is·meant·as·a·silent·replacement·of·MATLAB's·builtin |
| 74 | MKDIR()·function.·It·can·also·be·used·to·show·more·clearly·what | 74 | MKDIR()·function.·It·can·also·be·used·to·show·more·clearly·what |
| 75 | directories·are·or·would·be·created·by·the·command. | 75 | directories·are·or·would·be·created·by·the·command. |
| 76 | </p><p> | 76 | </p><p> |
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| 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_xyz2rgb.html">IMOP·-·vl_xyz2rgb</a></span> | 62 | ······<span·class='page'><a·href="../doc.html">Documentation</a></span><span·class='separator'>></span><span·class='page'><a·href="matlab.html">MATLAB·API</a></span><span·class='separator'>></span><span·class='page'><a·href="vl_xyz2rgb.html">IMOP·-·vl_xyz2rgb</a></span> |
| 63 | ····</div> | 63 | ····</div> |
| 64 | ··</div> | 64 | ··</div> |
| 65 | ··<div·id="content-section"> | 65 | ··<div·id="content-section"> |
| 66 | ····<div·id="content-wrapper"> | 66 | ····<div·id="content-wrapper"> |
| 67 | ······<div·id="content"> | 67 | ······<div·id="content"> |
| 68 | ········<div·class="mdoc"> | 68 | ········<div·class="mdoc"> |
| 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_xyz2luv.html">Prev</a></li><li><a·href="vl_ | 69 | <ul·class="breadcrumb"><li><a·href="matlab.html">Index</a></li><li><a·href="vl_xyz2luv.html">Prev</a></li><li><a·href="vl_vlad.html">Next</a></li></ul><div·class="documentation"><p> |
| 70 | J·=·<a·href="vl_xyz2rgb.html">VL_XYZ2RGB</a>(I)·the·XYZ·image·I·in·RGB·format. | 70 | J·=·<a·href="vl_xyz2rgb.html">VL_XYZ2RGB</a>(I)·the·XYZ·image·I·in·RGB·format. |
| 71 | </p><p> | 71 | </p><p> |
| 72 | <a·href="vl_xyz2rgb.html">VL_XYZ2RGB</a>(I,WS)·uses·the·RGB·workspace·WS.·WS·is·a·string·in | 72 | <a·href="vl_xyz2rgb.html">VL_XYZ2RGB</a>(I,WS)·uses·the·RGB·workspace·WS.·WS·is·a·string·in |
| 73 | </p><ul><li><p> | 73 | </p><ul><li><p> |
| 74 | CIE:····E·illuminant·and·2.2·gamma | 74 | CIE:····E·illuminant·and·2.2·gamma |
| 75 | </p></li><li><p> | 75 | </p></li><li><p> |
| 76 | Adobe:··D65·illuminant·and·2.2·gamma | 76 | Adobe:··D65·illuminant·and·2.2·gamma |