function?[?pcaAV]?=?fastPCA（?AkmA）??
%快速PCA，主成份分析??
%輸入：A-樣本矩陣，每行是一個樣本，列是樣本的維數(shù)??200*（112*92）
%??????k-降至k維??20
%??????mA樣本A的均值?按列求得的?1*（112*92）
%輸出：pacA-降維后的k維樣本特征向量組成的矩陣，即主成分??
%?????v-主成分分量??
m=size（A1）;??%200
Z=（A-repmat（mAm1））;?%200*10304?
T=Z*Z‘;??%200*200
[VD]=eigs（Tk）;%計算T的最大的k個特征值和特征向量???
V=Z‘*V;?????????%協(xié)方差矩陣的特征向量??10304*200?*?200*20
for?i=1:k???????%特征向量單位化??
????l=norm（V（:i））;??
????V（:i）=V（:i）/l;??
end??
pcaA=Z*V;???????%線性變換，降至k維??200*10304?*?10304*20
end??

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-01-05?15:05??pca+svm?人臉識別?包含testoneface\
?????文件?????????620??2017-04-21?09:38??pca+svm?人臉識別?包含testoneface\fastPCA.m
?????文件?????????264??2017-04-21?09:15??pca+svm?人臉識別?包含testoneface\kfun_rbf.m
?????文件?????????930??2017-06-22?17:30??pca+svm?人臉識別?包含testoneface\multiSVM.m
?????文件?????????469??2017-06-22?16:43??pca+svm?人臉識別?包含testoneface\multiSVMtrain.m
?????文件??????????91??2017-04-29?22:20??pca+svm?人臉識別?包含testoneface\mydemo.m
?????目錄???????????0??2017-10-23?14:24??pca+svm?人臉識別?包含testoneface\orl\
?????文件????15790867??2017-03-31?19:52??pca+svm?人臉識別?包含testoneface\orl\model.mat
?????目錄???????????0??2017-10-23?14:24??pca+svm?人臉識別?包含testoneface\orl\s1\
?????目錄???????????0??2017-10-23?14:24??pca+svm?人臉識別?包含testoneface\orl\s10\
?????文件???????11382??2009-08-17?09:04??pca+svm?人臉識別?包含testoneface\orl\s10\1.BMP
?????文件???????11382??2009-08-17?09:04??pca+svm?人臉識別?包含testoneface\orl\s10\10.BMP
?????文件???????11382??2009-08-17?09:04??pca+svm?人臉識別?包含testoneface\orl\s10\2.BMP
?????文件???????11382??2009-08-17?09:04??pca+svm?人臉識別?包含testoneface\orl\s10\3.BMP
?????文件???????11382??2009-08-17?09:04??pca+svm?人臉識別?包含testoneface\orl\s10\4.BMP
?????文件???????11382??2009-08-17?09:04??pca+svm?人臉識別?包含testoneface\orl\s10\5.BMP
?????文件???????11382??2009-08-17?09:04??pca+svm?人臉識別?包含testoneface\orl\s10\6.BMP
?????文件???????11382??2009-08-17?09:04??pca+svm?人臉識別?包含testoneface\orl\s10\7.BMP
?????文件???????11382??2009-08-17?09:04??pca+svm?人臉識別?包含testoneface\orl\s10\8.BMP
?????文件???????11382??2009-08-17?09:04??pca+svm?人臉識別?包含testoneface\orl\s10\9.BMP
?????文件????????8192??2009-08-17?09:06??pca+svm?人臉識別?包含testoneface\orl\s10\Thumbs.db
?????目錄???????????0??2017-10-23?14:24??pca+svm?人臉識別?包含testoneface\orl\s11\
?????文件???????11382??2009-08-17?09:08??pca+svm?人臉識別?包含testoneface\orl\s11\1.BMP
?????文件???????11382??2009-08-17?09:08??pca+svm?人臉識別?包含testoneface\orl\s11\10.BMP
?????文件???????11382??2009-08-17?09:08??pca+svm?人臉識別?包含testoneface\orl\s11\2.BMP
?????文件???????11382??2009-08-17?09:09??pca+svm?人臉識別?包含testoneface\orl\s11\3.BMP
?????文件???????11382??2009-08-17?09:09??pca+svm?人臉識別?包含testoneface\orl\s11\4.BMP
?????文件???????11382??2009-08-17?09:09??pca+svm?人臉識別?包含testoneface\orl\s11\5.BMP
?????文件???????11382??2009-08-17?09:09??pca+svm?人臉識別?包含testoneface\orl\s11\6.BMP
?????文件???????11382??2009-08-17?09:09??pca+svm?人臉識別?包含testoneface\orl\s11\7.BMP
?????文件???????11382??2009-08-17?09:09??pca+svm?人臉識別?包含testoneface\orl\s11\8.BMP
............此處省略464個文件信息