bp神经网络手写字符（汉字识别）

load fbp; G=imread('biaozhun.jpg');%读取 I=rgb2gray(G); %--------转灰度图象 B1=filter2(fspecial('average',3),I)/255; %--------均值滤波 d=im2bw(B1,0.5); %--------二值 imshow(d); k1=1;k2=1;s=sum(d');j=2;a=1;c=1 [m,n]=size(d'); while s(j)==m j=j+1; end k1=j; while s(j)~=m && j<=n-1 j=j+1; end k2=j-1; d=d((k1:k2),:); %--------行分割 [m,n]=size(d); k1=1;k2=1;s=sum(d);j=2;a=1;c=1 for a=1:16 while s(j)==m j=j+1; end k1=j; while s(j)~=m && j<=n-1 j=j+1; end k2=j-1; %--------列分割 if c==1 b1=d(:,(k1:k2)); imwrite(b1,'im1.jpg'); t1=tezhengtiqu(b1); P_test = [t1']; y = sim(net,P_test); word=fbmjieguoxianshi(y) end %--------第1个字符 if c==2 b2=d(:,(k1:k2)); imwrite(b2,'im2.jpg'); t2=tezhengtiqu(b2); P_test = [t2]; y = sim(net,P_test'); word=fbmjieguoxianshi(y) end %--------第2个字符 if c==3 b3=d(:,(k1:k2)); imwrite(b3,'im3.jpg'); t3=tezhengtiqu(b3); P_test = [t3]; y = sim(net,P_test'); word=fbmjieguoxianshi(y) end %--------第3个字符 if c==4 b4=d(:,(k1:k2)); imwrite(b4,'im4.jpg'); t4=tezhengtiqu(b4); P_test = [t4]; y = sim(net,P_test'); word=fbmjieguoxianshi(y) end %--------第4个字符 if c==5 b5=d(:,(k1:k2)); imwrite(b5,'im5.jpg'); t5=tezhengtiqu(b5); P_test = [t5]; y = sim(net,P_test'); word=fbmjieguoxianshi(y) end %--------第五5个字符 if c==6 b6=d(:,(k1:k2)); imwrite(b6,'im6.jpg'); t6=tezhengtiqu(b6); P_test = [t6]; y = sim(net,P_test'); word=fbmjieguoxianshi(y) end %--------第6个字符 if c==7 b7=d(:,(k1:k2)); imwrite(b7,'im7.jpg'); t7=tezhengtiqu(b7); P_test = [t7]; y = sim(net,P_test'); word=fbmjieguoxianshi(y) end %--------第7个字符 if c==8 b8=d(:,(k1:k2)); imwrite(b8,'im8.jpg'); t8=tezhengtiqu(b8); P_test = [t8]; y = sim(net,P_test'); word=fbmjieguoxianshi(y) end %--------第8个字符 if c==9 b9=d(:,(k1:k2)); imwrite(b9,'im9.jpg'); t9=tezhengtiqu(b9); P_test = [t9]; y = sim(net,P_test'); word=fbmjieguoxianshi(y) end %--------第9个字符 if c==10 b10=d(:,(k1:k2)); imwrite(b10,'im10.jpg'); t10=tezhengtiqu(b10); P_test = [t10]; y = sim(net,P_test'); word=fbmjieguoxianshi(y) end %--------第10个字符 if c==11 b11=d(:,(k1:k2)); imwrite(b11,'im11.jpg'); t11=tezhengtiqu(b11); P_test = [t11]; y = sim(net,P_test'); word=fbmjieguoxianshi(y) end %--------第11个字符 if c==12 b12=d(:,(k1:k2)); imwrite(b12,'im12.jpg'); t12=tezhengtiqu(b12); P_test = [t12]; y = sim(net,P_test'); word=fbmjieguoxianshi(y) end %--------第12个字符 if c==13 b13=d(:,(k1:k2)); imwrite(b13,'im13.jpg'); t13=tezhengtiqu(b13); P_test = [t13]; y = sim(net,P_test'); word=fbmjieguoxianshi(y) end %--------第13个字符 if c==14 b14=d(:,(k1:k2)); imwrite(b14,'im14.jpg'); t14=tezhengtiqu(b14); P_test = [t14]; y = sim(net,P_test'); word=fbmjieguoxianshi(y) end %--------第14个字符 if c==15 b15=d(:,(k1:k2)); imwrite(b15,'im15.jpg'); t15=tezhengtiqu(b15); P_test = [t15]; y = sim(net,P_test'); word=fbmjieguoxianshi(y) end %--------第15个字符 if c==16 b16=d(:,(k1:k2)); imwrite(b16,'im16.jpg'); t16=tezhengtiqu(b16); P_test = [t16]; y = sim(net,P_test'); word=fbmjieguoxianshi(y) end %--------第16个字符 c=c+1; end subplot(2,8,1),imshow('im1.jpg'); subplot(2,8,2),imshow('im2.jpg'); subplot(2,8,3),imshow('im3.jpg'); subplot(2,8,4),imshow('im4.jpg'); subplot(2,8,5),imshow('im5.jpg'); subplot(2,8,6),imshow('im6.jpg'); subplot(2,8,7),imshow('im7.jpg'); subplot(2,8,8),imshow('im8.jpg'); subplot(2,8,9),imshow('im9.jpg'); subplot(2,8,10),imshow('im10.jpg'); subplot(2,8,11),imshow('im11.jpg'); subplot(2,8,12),imshow('im12.jpg'); subplot(2,8,13),imshow('im13.jpg'); subplot(2,8,14),imshow('im14.jpg'); subplot(2,8,15),imshow('im15.jpg'); subplot(2,8,16),imshow('im16.jpg');