Hi, I have to measure the luminosity of a picture using the l,a,b parameters, so I can compare the luminosity of several pictures. How would I go about to achieve this?Hi, I have to measure the luminosity of a picture using the l,a,b parameters, so I can compare the luminosity of several pictures. How would I go about to achieve this? Hi, I have to measure the luminosity of a picture using the l,a,b parameters, so I can compare the luminosity of several pictures. How would I go about to achieve this? luminosity, pictures, l a b MATLAB Answers — New Questions

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