Problem 42849. RGB to CMYK

Solution 936700

Submitted on 16 Aug 2016 by Alfonso Nieto-Castanon

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Test	Status	Code Input and Output
1	Pass	RGB = [0,0,0]; CMYK = [0,0,0,1]; assert(isequal(rgb2cmyk(RGB),CMYK))
2	Pass	RGB = [1,1,1]; CMYK = [0,0,0,0]; assert(isequal(rgb2cmyk(RGB),CMYK))
3	Pass	RGB = [1,0,0]; CMYK = [0,1,1,0]; assert(isequal(rgb2cmyk(RGB),CMYK))
4	Pass	RGB = [1,1,0]; CMYK = [0,0,1,0]; assert(isequal(rgb2cmyk(RGB),CMYK))
5	Pass	RGB = [150,25,0]/255; CMYK = [0,5/6,1,7/17]; error = abs(rgb2cmyk(RGB)-CMYK); assert(all(error<1e-4))