MATLAB: Looping each pixel of matrix image

#looping #pdf

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Best Answer

If input image is color image 
X = imread('img.jpg'); 
Val = zeros(numel(X));    % initialize pdf values storing variable with zeros
k = 1; % counter variable in for loop
for cha = 1:size(X, 3)   % loop of (3 RGB colors)
    for r = 1:size(X, 1)    % for number of rows of the image

        for c = = 1:size(X, 2)    % for number of columns of the image

            Val(k) = pdf(X(r, c, cha),mu,sigma);
            k = k+1;    % increment counter loop 
        end
    end
end
If the input image is grayscale image
for r = 1:size(X, 1)    % for number of rows of the image
    for c = = 1:size(X, 2)    % for number of columns of the image
        Val(k) = pdf(X(r, c),mu,sigma);
        k = k+1; % increment counter loop
    end
end
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