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function?CasicBP（）
clc
close?all
clear?all

filepath?=?‘./letters_numbers/‘;
rand（‘state‘0）;

targets?=?[eye（36）];

for?i?=?1:10
????imageP=imread（strcat（filepathstrcat（num2str（（i-1））‘.bmp‘）））;
????charvec?=?casic_imgresize（imageP）;
????alphabet（:i）?=?charvec;
end;
for?i?=?11:36
????imageP=imread（strcat（filepathstrcat（char（double（‘A‘）+i-11）‘.bmp‘）））;
????charvec?=?casic_imgresize（imageP）;
????alphabet（:i）?=?charvec;
end;

P=alphabet
T=targets

[RQ]?=?size（P）;
[S2Q]?=?size（T）;
S1?=?36;

%??創建一個新的前向神經網絡??
net_1=newff（minmax（P）[S1S2]{‘tansig‘‘logsig‘}‘traingdx‘）;

%??當前輸入層權值和閾值?
inputWeights=net_1.IW{11}?
inputbias=net_1.b{1}?

%??當前網絡層權值和閾值?
%?layerWeights=net_1.LW{21}?
%?layerbias=net_1.b{2}?
net_1.LW{21}=net_1.L

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-09-17?10:22??用Matlab寫的BP算法識別字符\
?????目錄???????????0??2018-09-17?10:25??用Matlab寫的BP算法識別字符\CasicBP\
?????文件??????????55??2018-08-27?11:33??用Matlab寫的BP算法識別字符\CasicBP\【源碼使用必讀】.url
?????文件?????????552??2018-09-17?10:51??用Matlab寫的BP算法識別字符\CasicBP\casic_imgresize.m
?????文件????????3998??2010-05-10?11:43??用Matlab寫的BP算法識別字符\CasicBP\CasicBP.asv
?????文件????????3992??2018-09-17?10:51??用Matlab寫的BP算法識別字符\CasicBP\CasicBP.m
?????目錄???????????0??2018-09-17?10:22??用Matlab寫的BP算法識別字符\CasicBP\letters_numbers\
?????文件?????????230??2009-02-08?21:30??用Matlab寫的BP算法識別字符\CasicBP\letters_numbers\0.bmp
?????文件?????????230??2009-02-08?21:30??用Matlab寫的BP算法識別字符\CasicBP\letters_numbers\1.bmp
?????文件?????????230??2009-02-08?21:30??用Matlab寫的BP算法識別字符\CasicBP\letters_numbers\2.bmp
?????文件?????????230??2009-02-08?21:30??用Matlab寫的BP算法識別字符\CasicBP\letters_numbers\3.bmp
?????文件?????????230??2009-02-08?21:30??用Matlab寫的BP算法識別字符\CasicBP\letters_numbers\4.bmp
?????文件?????????230??2009-02-08?21:30??用Matlab寫的BP算法識別字符\CasicBP\letters_numbers\5.bmp
?????文件?????????230??2009-02-08?21:30??用Matlab寫的BP算法識別字符\CasicBP\letters_numbers\6.bmp
?????文件?????????230??2009-02-08?21:30??用Matlab寫的BP算法識別字符\CasicBP\letters_numbers\7.bmp
?????文件?????????230??2009-02-08?21:30??用Matlab寫的BP算法識別字符\CasicBP\letters_numbers\8.bmp
?????文件?????????230??2009-02-08?21:31??用Matlab寫的BP算法識別字符\CasicBP\letters_numbers\9.bmp
?????文件?????????230??2009-02-08?21:31??用Matlab寫的BP算法識別字符\CasicBP\letters_numbers\A.bmp
?????文件?????????230??2009-02-08?21:31??用Matlab寫的BP算法識別字符\CasicBP\letters_numbers\B.bmp
?????文件?????????230??2009-02-08?21:31??用Matlab寫的BP算法識別字符\CasicBP\letters_numbers\C.bmp
?????文件?????????230??2009-02-08?21:31??用Matlab寫的BP算法識別字符\CasicBP\letters_numbers\D.bmp
?????文件?????????230??2009-02-08?21:31??用Matlab寫的BP算法識別字符\CasicBP\letters_numbers\E.bmp
?????文件?????????230??2009-02-08?21:31??用Matlab寫的BP算法識別字符\CasicBP\letters_numbers\F.bmp
?????文件?????????230??2009-02-08?21:31??用Matlab寫的BP算法識別字符\CasicBP\letters_numbers\G.bmp
?????文件?????????230??2009-02-08?21:31??用Matlab寫的BP算法識別字符\CasicBP\letters_numbers\H.bmp
?????文件?????????230??2009-02-08?21:31??用Matlab寫的BP算法識別字符\CasicBP\letters_numbers\I.bmp
?????文件?????????230??2009-02-08?21:31??用Matlab寫的BP算法識別字符\CasicBP\letters_numbers\J.bmp
?????文件?????????230??2009-02-08?21:31??用Matlab寫的BP算法識別字符\CasicBP\letters_numbers\K.bmp
?????文件?????????230??2009-02-08?21:31??用Matlab寫的BP算法識別字符\CasicBP\letters_numbers\L.bmp
?????文件?????????230??2009-02-08?21:32??用Matlab寫的BP算法識別字符\CasicBP\letters_numbers\M.bmp
?????文件?????????230??2009-02-08?21:32??用Matlab寫的BP算法識別字符\CasicBP\letters_numbers\N.bmp
............此處省略21個文件信息