MATLAB文字连通域源程序代码.rar

clear; clc [a ,map]= imread('test.JPG'); I=im2bw(a,0.75); I=1-I; Ileast = bwlabel(I,4); % 标定图像的连通域 nummax = max(Ileast(:)); % 分块数 col=length(I(:,1)); % 行数 row=length(I(1,:)); % 列数 Area_candidate = struct('top',{},'left',{},'bottom',{},'right',{});%初始化结构体 for n=1:nummax Area_candidate(n).top=col; Area_candidate(n).left=row; Area_candidate(n).bottom=0; Area_candidate(n).right=0; end %判定各个连通域的最小外接矩形的边界的值 for a=1:col for b=1:row if Ileast(a,b)~=0 Area_candidate(Ileast(a,b)).top = min ( Area_candidate(Ileast(a,b)).top ,a);%得到各个连通域的边界 Area_candidate(Ileast(a,b)).left = min ( Area_candidate(Ileast(a,b)).left ,b); Area_candidate(Ileast(a,b)).bottom = max ( Area_candidate(Ileast(a,b)).bottom ,a); Area_candidate(Ileast(a,b)).right = max ( Area_candidate(Ileast(a,b)).right ,b); end end end %新建的空矩阵上得出图像 I_out=zeros(size(I)); for n=1:nummax I_out(Area_candidate(1,n).top:Area_candidate(1,n).bottom , Area_candidate(1,n).left:Area_candidate(1,n).right) =1 ;%填充矩形 end imshow(I_out) msgbox('MATLAB编程答疑，请加QQ: 993878382','MATLAB答疑','help') web http://993878382.qzone.qq.com -browser