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divide an image region into 4x4 blocks

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fereshte
fereshte on 27 Mar 2014
Edited: fereshte on 28 Mar 2014
How do I divide an image region into 4x4 blocks and then For each block, calculate the mean value of the block?

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Accepted Answer

Joseph Cheng
Joseph Cheng on 27 Mar 2014
You can try to use blockproc(A,[4 4],fun) where fun is a function which does mean(mean(block_struct.data))

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Image Analyst
Image Analyst on 28 Mar 2014

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fereshte
fereshte on 28 Mar 2014
thank you.
1.can you divide image to 3*3 blocks with blockproc_demo2.m?
2.how i can calculate mean just for fifth window in 3*3 blocks?

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