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how can i randomize an image?

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nadia
nadia 2017-2-27
评论： Samaa Yasser 2021-4-28
Hi, I have an image and I want to randomize it with special seed and convert the original image to random image, after that I should recover the original image. how can I do it? can you guide me???

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回答（2 个）

Walter Roberson
Walter Roberson 2017-2-27
special_seed = randi([1 255]);
randomized_image = uint8( mod(double(YourImage)+special_seed, 256) );
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nadia
nadia 2017-2-27
编辑：nadia 2017-2-27
is there any function in matlab that convert an image to random image and encrypt the image with specified seed?
Walter Roberson
Walter Roberson 2017-2-27
No there is no function provided for that specific purpose. The code I gave above does one kind of randomization. To reverse use -special_seed instead of + it.

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Image Analyst
Image Analyst 2017-2-27
编辑：Image Analyst 2021-4-28
See attached demos for random scrambling and scrambling via Arnold's Cat Map.
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