Hello, I divide an image into 4x4 blocks, and I want to select 512 blocks and do some math on them and embed some information.

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javad danesh on 12 Feb 2022

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Commented: javad danesh on 15 Feb 2022

Hello,

I divide an image into 4x4 blocks, and I want to select 512 blocks and do some math on them and embed some information. And to extract the embedded information, I find the same blocks and the operation Do the extraction.

Thanks if anyone can help

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Accepted Answer

Image Analyst on 12 Feb 2022

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https://in.mathworks.com/matlabcentral/answers/1648390-hello-i-divide-an-image-into-4x4-blocks-and-i-want-to-select-512-blocks-and-do-some-math-on-them-a#answer_894585

See the FAQ:

https://matlab.fandom.com/wiki/FAQ#How_do_I_split_an_image_into_non-overlapping_blocks.3F

Also see my attached demos.

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javad danesh on 15 Feb 2022

Thanks for the help.

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