有一个图像分块的代码，可以直接将一幅图像分为5*5的小块，代码如下：
%[FileName,PathName] = uigetfile('*.*','Select the image');
Im=imread('Bicubic flowers.bmp');
imshow(Im)
hold on
L = size(Im);
height=5;
width=5;
max_row = floor(L(1)/height);%实验图片为800*1280，则max_row=5,max_col=8
max_col = floor(L(2)/width);
seg = cell(max_row,max_col);
%分块
for row = 1:max_row
for col = 1:max_col
seg(row,col)= {Im((row-1)*height+1:row*height,(col-1)*width+1:col*width,:)};
end
end
for i=1:max_row*max_col
imwrite(seg{i},strcat('m',int2str(i),'.bmp')); %把第i帧的图片写为'mi.bmp'保存
end
%画出分块的边界
for row = 1:max_row
for col = 1:max_col
rectangle('Position',[160*(col-1),160*(row-1),160,160],...
'LineWidth',2,'LineStyle','-','EdgeColor','r');
end
end
hold off
%[FileN
