function?phow_caltech101（）
%?PHOW_CALTECH101?Image?classification?in?the?Caltech-101?dataset
%???This?program?demonstrates?how?to?use?VLFeat?to?construct?an?image
%???classifier?on?the?Caltech-101?data.?The?classifier?uses?PHOW
%???features?（dense?SIFT）?spatial?histograms?of?visual?words?and?a
%???Chi2?SVM.?To?speedup?computation?it?uses?VLFeat?fast?dense?SIFT
%???kd-trees?and?homogeneous?kernel?map.?The?program?also
%???demonstrates?VLFeat?PEGASOS?SVM?solver?although?for?this?small
%???dataset?other?solvers?such?as?LIBLINEAR?can?be?more?efficient.
%
%???By?default?15?training?images?are?used?which?should?result?in
%???about?64%?performance?（a?good?performance?considering?that?only?a
%???single?feature?type?is?being?used）.
%
%???Call?PHOW_CALTECH101?to?train?and?test?a?classifier?on?a?small
%???subset?of?the?Caltech-101?data.?Note?that?the?program
%???automatically?downloads?a?copy?of?the?Caltech-101?data?from?the
%???Internet?if?it?cannot?find?a?local?copy.
%
%???Edit?the?PHOW_CALTECH101?file?to?change?the?program?configuration.
%
%???To?run?on?the?entire?dataset?change?CONF.TINYPROBLEM?to?FALSE.
%
%???The?Caltech-101?data?is?saved?into?CONF.CALDIR?which?defaults?to
%???‘data/caltech-101‘.?Change?this?path?to?the?desired?location?for
%???instance?to?point?to?an?existing?copy?of?the?Caltech-101?data.
%
%???The?program?can?also?be?used?to?train?a?model?on?custom?data?by
%???pointing?CONF.CALDIR?to?it.?Just?create?a?subdirectory?for?each
%???class?and?put?the?training?images?there.?Make?sure?to?adjust
%???CONF.NUMTRAIN?accordingly.
%
%???Intermediate?files?are?stored?in?the?directory?CONF.DATADIR.?All
%???such?files?begin?with?the?prefix?CONF.PREFIX?which?can?be?changed
%???to?test?different?parameter?settings?without?overriding?previous
%???results.
%
%???The?program?saves?the?trained?model?in
%???/-model.mat.?This?model?can?be?used?to
%???test?novel?images?independently?of?the?Caltech?data.
%
%?????load（‘data/baseline-model.mat‘）?;?#?change?to?the?model?path
%?????label?=?model.classify（model?im）?;
%

%?Author:?Andrea?Vedaldi

%?Copyright?（C）?2011-2013?Andrea?Vedaldi
%?All?rights?reserved.
%
%?This?file?is?part?of?the?VLFeat?library?and?is?made?available?under
%?the?terms?of?the?BSD?license?（see?the?COPYING?file）.

conf.calDir?=?‘data/caltech-101‘?;
conf.dataDir?=?‘data/‘?;
conf.autoDownloadData?=?true?;
conf.numTrain?=?15?;
conf.numTest?=?15?;
conf.numClasses?=?102?;
conf.numWords?=?600?;
conf.numSpatialX?=?[2?4]?;
conf.numSpatialY?=?[2?4]?;
conf.quantizer?=?‘kdtree‘?;
conf.svm.C?=?10?;

conf.svm.solver?=?‘sdca‘?;
%conf.svm.solver?=?‘sgd‘?;
%conf.svm.solver?=?‘liblinear‘?;

conf.svm.biasMultiplier?=?1?;
conf.phowOpts?=?{‘Step‘?3}?;
conf.clobber?=?false?;
conf.tinyProblem?=?true?;
conf.prefix?=?‘baseline‘?;
conf.randSeed?=?1?;

if?conf.tinyProblem
??conf.prefix?=?‘tiny‘?;
??conf.numClasses?=?5?;
??conf.numSpatialX?=?2?;
??conf.numSpatialY?=?2?;
??conf.numWords?=?300?;
??conf.phowOpts?=?{‘Verbose‘?2?‘Sizes‘

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2014-05-30?09:55??vlfeat-0.9.18\
?????文件??????????59??2014-01-31?09:14??vlfeat-0.9.18\.gitattributes
?????文件?????????700??2014-01-31?09:14??vlfeat-0.9.18\.gitignore
?????文件????????1365??2014-01-31?09:14??vlfeat-0.9.18\COPYING
?????文件???????11433??2014-01-31?09:14??vlfeat-0.9.18\Makefile
?????文件???????17536??2014-01-31?09:14??vlfeat-0.9.18\Makefile.mak
?????文件????????5997??2014-01-31?09:14??vlfeat-0.9.18\README
?????目錄???????????0??2014-05-30?09:55??vlfeat-0.9.18\apps\
?????文件???????11594??2014-01-31?09:14??vlfeat-0.9.18\apps\phow_caltech101.m
?????目錄???????????0??2014-05-30?09:55??vlfeat-0.9.18\apps\recognition\
?????文件????????5278??2014-01-31?09:14??vlfeat-0.9.18\apps\recognition\encodeImage.m
?????文件????????6905??2014-01-31?09:14??vlfeat-0.9.18\apps\recognition\experiments.m
?????文件?????????822??2014-01-31?09:14??vlfeat-0.9.18\apps\recognition\extendDescriptorsWithGeometry.m
?????文件????????1679??2014-01-31?09:14??vlfeat-0.9.18\apps\recognition\getDenseSIFT.m
?????文件?????????919??2014-01-31?09:14??vlfeat-0.9.18\apps\recognition\readImage.m
?????文件????????2495??2014-01-31?09:14??vlfeat-0.9.18\apps\recognition\setupCaltech256.m
?????文件????????1197??2014-01-31?09:14??vlfeat-0.9.18\apps\recognition\setupFMD.m
?????文件????????4024??2014-01-31?09:14??vlfeat-0.9.18\apps\recognition\setupGeneric.m
?????文件????????2368??2014-01-31?09:14??vlfeat-0.9.18\apps\recognition\setupScene67.m
?????文件????????5189??2014-01-31?09:14??vlfeat-0.9.18\apps\recognition\setupVoc.m
?????文件????????6226??2014-01-31?09:14??vlfeat-0.9.18\apps\recognition\trainEncoder.m
?????文件????????6097??2014-01-31?09:14??vlfeat-0.9.18\apps\recognition\traintest.m
?????文件????????4621??2014-01-31?09:14??vlfeat-0.9.18\apps\sift_mosaic.m
?????目錄???????????0??2014-05-30?09:55??vlfeat-0.9.18\bin\
?????目錄???????????0??2014-05-30?09:55??vlfeat-0.9.18\bin\glnx86\
?????文件????????8396??2014-01-31?09:14??vlfeat-0.9.18\bin\glnx86\aib
?????文件??????293498??2014-01-31?09:14??vlfeat-0.9.18\bin\glnx86\libvl.so
?????文件???????21717??2014-01-31?09:14??vlfeat-0.9.18\bin\glnx86\mser
?????文件???????26345??2014-01-31?09:14??vlfeat-0.9.18\bin\glnx86\sift
?????文件????????8327??2014-01-31?09:14??vlfeat-0.9.18\bin\glnx86\test_gauss_elimination
?????文件????????8597??2014-01-31?09:14??vlfeat-0.9.18\bin\glnx86\test_getopt_long
............此處省略2000個文件信息