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Low-pass filter
how to add a Low-pass filter the watermarked picture, i.e., replace each pixel by the average of its NxN pixel neighborhood (fo...
6 years ago | 1 answer | 0
1
answerQuestion
How to Select random data from matrix ?
a = imread('lena512.bmp'); %image(a); title('main img'); colormap(gray(256)); daspect([1 1 1]); % now i want to take the ha...
6 years ago | 1 answer | 0
