Dear Image Analyst ! my problem is the following : i have a set of images and all of them have a ColorChecker chart as you can see in the example bellow. My mission is to correct the exposure (correct the Contrast and the Brightness i guess) of every image based on one image of my choice ( the one that has perfect exposure in my opinion, in this example , it's the Reference image).
The test i need to do to check if i have good results after the correction is to compare the 6 gray patches RGB value to see if they match : for example i need to compare the white patch in the reference image with the white patch of the corrected Overexposed image, the RGB value in both patches should be equal.Same goes for the Black patch and the 4 gray ones. the patches are extracted from the correspondent images.