?? rgb2graykpm.m
字號:
function g = rgb2grayKPM(rgb)
% function g = rgb2grayKPM(rgb)
% rgb2grayKPM Like the built-in function, but if r is already gray, does not cause an error
[nr nc ncolors] = size(rgb);
if ncolors > 1
g = rgb2gray(rgb);
else
g = rgb;
end
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