how can i randomize an image?
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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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Answers (2)
Walter Roberson
on 27 Feb 2017
special_seed = randi([1 255]);
randomized_image = uint8( mod(double(YourImage)+special_seed, 256) );
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Walter Roberson
on 27 Feb 2017
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.
Image Analyst
on 27 Feb 2017
Edited: Image Analyst
on 28 Apr 2021
See attached demos for random scrambling and scrambling via Arnold's Cat Map.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/172882/image.jpeg)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/172886/image.jpeg)
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