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how to create noise manually to a color image without imnoise function explain with example?
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Duplicate of http://www.mathworks.com/matlabcentral/answers/72393-how-do-i-add-noise-to-a-color-image-without-using-imnoise-function
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Hi. For gaussian noise with standard deviation of S:
S = 20;
I = imread('peppers.png');
J = double(I) + S.*randn(size(I));
title('Additive Gaussian Noise')
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