function?V?=?cbcldata
%?cbcldata?-?read?face?image?data?from?cbcl?database
%

global?imloadfunc;
????
%?This?is?where?the?cbcl?face?images?reside
thepath?=?‘../data/cbcl-face-database/face/‘;

%?Create?the?data?matrix
V?=?zeros（19*192429）;

%?Read?the?directory?listing
D?=?dir（thepath）;

%?Step?through?each?image?reading?it?into?the?data?matrix
%?Note:?The?（+2）?is?just?to?avoid?‘.‘?and?‘..‘?entries
fprintf（‘Reading?in?the?images...\n‘）;
for?i=1:2429
????switch?imloadfunc
?????case?‘pgma_read‘
??????I?=?pgma_read（[thepath?D（i+2）.name]）;
?????otherwise
??????I?=?imread（[thepath?D（i+2）.name]）;
????end
????V（:i）?=?reshape（I[19*19?1]）;
????if?rem（i100）==1?fprintf（‘[%d/24]‘floor（i/100））;?end
end

fprintf（‘\n‘）;

%?Same?preprocessing?as?Lee?and?Seung
V?=?V?-?mean（V（:））;
V?=?V?/?sqrt（mean（V（:）.^2））;
V?=?V?+?0.25;
V?=?V?*?0.25;
V?=?min（V1）;
V?=?max（V0）;


%?Additionally?this?is?required?to?avoid?having?any?exact?zeros:
%?（divergence?objective?cannot?handle?them!）
V?=?max（V1e-4）;

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2006-08-03?11:02??nmfpack\
?????文件????????6862??2006-08-03?11:02??nmfpack\README
?????目錄???????????0??2006-08-03?11:02??nmfpack\code\
?????文件????????4932??2006-08-03?11:02??nmfpack\code\nmfsc.m
?????文件?????????569??2006-08-03?11:02??nmfpack\code\natdata.m
?????文件????????6585??2006-08-03?11:02??nmfpack\code\main.m
?????文件????????1914??2006-08-03?11:02??nmfpack\code\nmfdiv.m
?????文件?????????933??2006-08-03?11:02??nmfpack\code\sampleimages.m
?????文件????????1551??2006-08-03?11:02??nmfpack\code\visual.m
?????文件????????3209??2006-08-03?11:02??nmfpack\code\projtest.m
?????文件????????1841??2006-08-03?11:02??nmfpack\code\nmfmse.m
?????文件????????2019??2006-08-03?11:02??nmfpack\code\snmf.m
?????文件????????2010??2006-08-03?11:02??nmfpack\code\lnmf.m
?????文件????????1002??2006-08-03?11:02??nmfpack\code\cbcldata.m
?????文件????????1257??2006-08-03?11:02??nmfpack\code\orldata.m
?????文件????????1509??2006-08-03?11:02??nmfpack\code\projfunc.m
?????文件????????3993??2006-08-03?11:02??nmfpack\code\pgma_read.m
?????目錄???????????0??2006-08-03?11:02??nmfpack\data\
?????目錄???????????0??2006-08-03?11:02??nmfpack\data\cbcl-face-database\
?????目錄???????????0??2006-08-03?11:03??nmfpack\data\orl-faces\
?????目錄???????????0??2006-08-03?11:02??nmfpack\data\orl-faces\s1\
?????文件???????10318??2006-08-03?11:02??nmfpack\data\orl-faces\s1\1.pgm
?????文件???????10318??2006-08-03?11:02??nmfpack\data\orl-faces\s1\10.pgm
?????文件???????10318??2006-08-03?11:02??nmfpack\data\orl-faces\s1\2.pgm
?????文件???????10318??2006-08-03?11:02??nmfpack\data\orl-faces\s1\3.pgm
?????文件???????10318??2006-08-03?11:02??nmfpack\data\orl-faces\s1\4.pgm
?????文件???????10318??2006-08-03?11:02??nmfpack\data\orl-faces\s1\5.pgm
?????文件???????10322??2006-08-03?11:02??nmfpack\data\orl-faces\s1\6.pgm
?????文件???????10321??2006-08-03?11:02??nmfpack\data\orl-faces\s1\7.pgm
?????文件???????10318??2006-08-03?11:02??nmfpack\data\orl-faces\s1\8.pgm
?????文件???????10318??2006-08-03?11:02??nmfpack\data\orl-faces\s1\9.pgm
............此處省略434個(gè)文件信息