在有些法度榜樣中因?yàn)閳D像過大年夜，經(jīng)常須要我們將圖像切割成就個比較小的圖案之后在進(jìn)行相干的處理。
 

Img=imread('sssd.png');
imgsize=size(Img)
subimg_width=600;
subimg_height=1000;
num_width_spilt=ceil(imgsize(1)/subimg_width);
num_height_spilt=ceil(imgsize(2)/subimg_height);
num=num_width_spilt*num_height_spilt;
for i=1:num_width_spilt
   for j=1:num_height_spilt
   if(i*subimg_width<=imgsize(1))
       width=subimg_width;
   else
       width=imgsize(1)-(i-1)*subimg_width;
   end
   if(j*subimg_height<=imgsize(2))
       height=subimg_height;
   else
       height=imgsize(2)-(j-1)*subimg_height;
   end
    subimg=zeros(width,height);

    for ii=1:width
    for jj=1:height
    for kk=1:3
   subimg(ii,jj,kk)=Img((i-1)*subimg_width+ii,(j-1)*subimg_height+jj,kk);
    end
    end
    end
 
 
  subimg=uint8(subimg);
    eval(['imwrite(subimg, ''subimg' num2str((i-1)*num_width_spilt+j) '.bmp'',''bmp'');']);
   end
end
    

對下圖進(jìn)行瓜分，獲得四個小圖
[img]http://img.blog.csdn.net/20150105102301202?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvemhvdXllbGlodWE=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center
獲得的四個小圖：
第一張：
[img]http://img.blog.csdn.net/20150105102337703?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvemhvdXllbGlodWE=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center
第二張
[img]http://img.blog.csdn.net/20150105102451557?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvemhvdXllbGlodWE=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center
第三張：
[img]http://img.blog.csdn.net/20150105102542849?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvemhvdXllbGlodWE=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center
第四┞放
[img]http://img.blog.csdn.net/20150105102543437?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvemhvdXllbGlodWE=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center