Determining value of intensity L from cdf of 0.1 ?

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Naeem Shaikh le 27 Août 2015

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https://fr.mathworks.com/matlabcentral/answers/236933-determining-value-of-intensity-l-from-cdf-of-0-1

Commenté : Torsten le 27 Août 2015

Dear all, I want to do illumination processing for effective face detection from unconstrained video. for i that i have decided to use the nonlinear transfer function based illumination processing. To perform dynamic range compression, i need to determine the image dependent parameter z, which can be determined from the intensity value L which is determined from cdf of 0.1. My question is how to determine the value of L from the CDF in matlab. if possible plz provide the piece of code.