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closeallI=imread('E:\txm.jpg');J=rgb2gray(I);figure(1)imshow(J);title('灰度化图像');[e1,e2]=size(J);Im=imcrop(J,[e2/2-200,e1/2-200,400,400]);figure(2)subplot(1,2,1),imshow(Im)title('中心区域');subplot(1,2,2),imhist(Im)title('中心区域直方图');[xa,ya]=size(Im);b=double(Im);zd=double(max(Im));zx=double(min(Im));T=double((zd+zx))/2;count=double(0);while1count=count+1;S0=0.0;n0=0.0;S1=0.0;n1=0.0;fori=1:xaforj=1:yaifdouble(Im(i,j))=TS1=S1+double(Im(i,j));n1=n1+1;elseS0=S0+double(Im(i,j));n0=n0+1;endendendT0=S0/n0;T1=S1/n1;ifabs(T-((T0+T1)/2))0.1break;elseT=(T0+T1)/2;endendcountTK=find(JT);J(K)=0;K=find(J=T);J(K)=255;figure(3)imshow(J)title('图像二值化');B=medfilt2(J,[5,1]);figure(4)imshow(B)title('中值滤波后图像');[y0,x0]=size(B);BW=edge(B,'log');figure(5);imshow(BW);title('边缘检测图像')%functioncode=barcode(pic)%条形码识别check_left=[13,25,19,61,35,49,47,59,55,11;...%左边数据编码，奇39,51,27,33,29,57,5,17,9,23];%左边数据编码，偶check_right=[114,102,108,66,92,78,80,68,72,116];%右边数据编码first_num=[31,20,18,17,12,6,3,10,9,5];%第一位数据编码bar=imread('E:\txm.jpg');%读输入条形码图片bar_Gray=rgb2gray(bar);%将RGB图片转换灰度图[a_histx]=imhist(bar_Gray);hist_max=[];ifa_hist(1)a_hist(2)hist_max=[hist_max1];endx=max(x);fori=2:xifa_hist(i)a_hist(i-1)&&a_hist(i)a_hist(i+1)hist_max=[hist_maxi];endendifa_hist(x)a_hist(x+1)hist_max=[hist_maxx+1];end[m,n]=size(hist_max);k=0;max_1=0;max_2=0;fori=1:nifka_hist(hist_max(i))k=a_hist(hist_max(i));max_1=hist_max(i);endendtemp=a_hist(max_1);a_hist(max_1)=0;k=0;fori=1:nifka_hist(hist_max(i))k=a_hist(hist_max(i));max_2=hist_max(i);endenda_hist(max_1)=temp;ifmax_1max_2k=max_1;max_1=max_2;max_2=k;endT=max_1;k=a_hist(max_1);fori=max_1:max_2ifka_hist(i)k=a_hist(i);T=i;endend[m,n]=size(bar_Gray);%求灰度图的大小fori=1:m%对图像进行二值化处理forj=1:nifbar_Gray(i,j)T%选择适当的阈值进行二值化处理bar_10(i,j)=1;elsebar_10(i,j)=0;endendend%imshow(bar_10);l=0;%检测59根条形码fori=1:mk=1;l=l+1;forj=1:n-1ifbar_10(i,j)~=bar_10(i,j+1)%比较同一行相邻两点的颜色是否一致%bar_x(l,k)=i;bar_y(l,k)=j;%记录转折点的纵坐标k=k+1;%准备记录下一个数据点endifk61%点数大于60，该行应该删掉l=l-1;breakendendifk61%点数小于60，该行应该删掉l=l-1;endend[m,n]=size(bar_y);ifm=1%查看条形码是否有效code='0';fprintf(1,'GameOver!\n');returnendfori=1:m%计算每根条形码的宽度forj=1:n-1bar_num(i,j)=bar_y(i,j+1)-bar_y(i,j);ifbar_num(i,j)0bar_num(i,j)=0;endendendbar_sum=sum(bar_num)/m;%求每根条形码宽度的平均值k=0;fori=1:59%计算59根条形码的总宽度k=k+bar_sum(i);endk=k/95;%计算单位条形码的宽度fori=1:59%计算每根条形码所占位数bar_int(i)=round(bar_sum(i)/k);endk=1;fori=1:59%将条形码转换成二进制数ifrem(i,2)forj=1:bar_int(i)%黑色条用1表示bar_01(k)=1;k=k+1;endelseforj=1:bar_int(i)%白色条用0表示bar_01(k)=0;k=k+1;endendendif((bar_01(1)&&~bar_01(2)&&bar_01(3))...%判断起始符是否正确&&(~bar_01(46)&&bar_01(47)&&~bar_01(48)&&bar_01(49)&&~bar_01(50))...%判断中间分隔符是否正确&&(bar_01(95)&&~bar_01(94)&&bar_01(93)))%判断终止符是否正确l=1;fori=1:6%将左侧42位二进制数转换为十进制数bar_left(l)=0;fork=1:7bar_left(l)=bar_left(l)+bar_01(7*(i-1)+k+3)*(2^(7-k));endl=l+1;endl=1;fori=1:6%将右侧42位二进制数转换为十进制数bar_right(l)=0;fork=1:7bar_right(l)=bar_right(l)+bar_01(7*(i+6)+k+1)*(2^(7-k));k=k-1;endl=l+1;endendnum_bar='';num_first=0;first=2;fori=1:6%从左边数据编码表中查出条形码编码数字forj=0:1fork=0:9ifbar_left(i)==check_left(j+1,k+1)num_bar=strcat(num_bar,num2str(k));switchfirst%记录左边数据的奇偶顺序case2first=j;break;case1num_first=num_first+j*(2^(6-i));break;case0num_first=num_first+~j*(2^(6-i));break;otherwisebreak;endendendendendfori=1:6%从右边数据编码表中查出条形码编码数字forj=0:9ifbar_right(i)==check_right(j+1)num_bar=strcat(num_bar,num2str(j));endendendfori=0:9%从第一位数据编码表中查出第一位数字ifnum_first==first_num(i+1)num_bar=strcat(num2str(i),num_bar);break;endendifnumel(num_bar)~=13fprintf(1,'PleaseTurnItAround!\n');returnendcheck_code=0;fori=1:12%计算校验码ifrem(i,2)check_code=check_code+str2double(num_bar(i));elsecheck_code=check_code+str2double(num_bar(i))*3;endendcheck_code=rem(check_code,10);ifcheck_code0check_code=10-check_code;endifcheck_code==str2double(num_bar(13))%判断校验码是否正确code=num_bar;elsefprintf(1,'PleaseTurnItAround!\n');returnend