How do i split an image into 8x8 blocks using a function?

4 次查看（过去 30 天）
Stefan Babic
Stefan Babic 2020-5-28
评论： Stefan Babic 2020-5-28
I need to split a 192x192 color image into blocks with 8x8 size. I also needed to split a grayscaled image same way which where i used this:
function x=cut(y)
for i=1:8:192
for j=1:8:192
x = y(i:i+7, j:j+7);
end
end
but i dont know how to do it with a color image.

请先登录，再回答此问题。

回答（1 个）

David Hill
David Hill 2020-5-28
I assume you have the image processing toolbox. Look at Neighborhood and Block Processing.
blockproc()
col2im()
  1 个评论
Stefan Babic
Stefan Babic 2020-5-28
I actually need it to be in form of a function so i would need to add the z variable to the function i used for grayscaled image. I tried:
function x=cut(y)
for i=1:8:192
for j=1:8:192
for z=1:3
x = y(i:i+7, j:j+7, 3);
end
end
end
but it gives me grayscaled image in blocks instead color image in blocks. I am not good at it so dont know whats wrong there.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Neighborhood and Block Processing 的更多信息

标签

产品


版本

R2020a

Community Treasure Hunt

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

Start Hunting!

Translated by