清空筛选条件
清空筛选条件

how to break an image into sub images

7 次查看（过去 30 天）
Rao
Rao 2012-9-4
评论： Walter Roberson 2021-10-19
i have an image having pixels 512*512 . i want to break it in equal sub images (for eg like into images of 8*8) and want to apply a function (can be any) on each sub image ??

请先登录，再回答此问题。

回答（3 个）

José-Luis
José-Luis 2012-9-4
Zainab Ishfaq
Zainab Ishfaq 2018-5-29
编辑：Walter Roberson 2020-2-13
Height=8; width=8;
currentimage = imread('Image.png');
[r,c,~]=size( currentimage );
count=0;
for i=0:Height:r
count=count+1;
for j=0:width:c
if((i+Height)<r && (j+width)<c)
Image=imcrop( currentimage ,[(i+1) (j+1) Height width]);
imwrite(Image,horzcat(currentfilename, num2str(count),'.tif'));
end
end
end
  9 个评论
显示 7更早的评论
shital shinde
shital shinde 2020-2-21
编辑：shital shinde 2020-2-21
Thanks sir. It work now. I have one question. Can we parallelize the above example using parallel computing toolbox.
Walter Roberson
Walter Roberson 2020-2-21
编辑：Walter Roberson 2020-2-21
Yes. Just change for i to parfor i
As we have advised you before, the result will almost certainly be notably slower than your current code. But I know from your previous questions that you feel inclined to do that testing yourself.

请先登录，再进行评论。

image-pro
image-pro 2021-10-19
i have an error please help
Error in p8 (line 11)
Image=imcrop(currentimage ,[(i+1) (j+1) Height width]);

类别

在 Help Center 和 File Exchange 中查找有关 Image Processing Toolbox 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by