MATLAB: Grayscale of RGB channels

grayscale

Is it possible to convert the matrix values of R, G and B channels to its own grayscale values respectively?

Best Answer

RGB = rand(100, 100, 3);   % RGB array
R   = RGB(:, :, 1);        % Gray image of the red channel
G   = RGB(:, :, 2);        % Gray image of the green channel
B   = RGB(:, :, 3);        % Gray image of the blue channel
figure
image(R)
figure
image(cat(3, R, R, R))
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