Hi Everyone, I am trying to add uniform noise using the following syntax,
image = ones([512,512])*128;
A = .1;
B = .2;
matrix_uniform = A + (B-A)*rand(size(image));
noisy_image = imnoise(uint8(image),'localvar',matrix_uniform);
K = wiener2(noisy_image,[5 5]);
figure, subplot(1,3,1),imshow(noisy_image), subplot(1,3,2), imshow(K),
But I am unable to get uniform shape in the histogram. Can anyone tell me what wrong I am doing?
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Hi. You don't need imnoise:
with 0.1 and 0.2 like you didn't add any noise. Uniform noise with zero mean:
image = ones([512,512])*128; A = -30; B = 30; matrix_uniform = A + (B-A)*rand(size(image)); noisy_image = image + matrix_uniform;
figure, subplot(1,2,1) imshow(noisy_image./255), subplot(1,2,2) imhist(uint8(noisy_image))