Hi I ran into problem on color matching 2 color palettes, every color matched except that one on row 3 column 2, it always turn to pink on the result.
http://www.framecompare.com/image-compare/screenshotcomparison/0E1NNN8U
This is a discrete color matching problem. The color matching algorithm assumes images with a continuous color distributions with smooth color gradients, so it’s not perfectly suited for this sort of problem.
However, the explanation is in row 5 column 1, which in the source image has almost the same color as row 3 column 2. That color has to become a bright pink, and so row 3 column 2 also becomes pink.
So does that mean the problem can be resolved if I can sort the order of the color in the source image into one long smooth gradient before passing to the program?
It might be…
I isolated that two color and do the testing on the order, but the program didn’t run.
source:
https://i.imgur.com/58gYXRb.pngThe algo matches color distributions. With two colors there is not much of a distribution, so I don’t think that will work.
I have found the reason for my problem, that’s because I had stacked way too many color adjustments into one color palette, trying to do the one LUT for all scenes thing. I have tried to manually alter each color with 3DLut Creator and I actually see the problem on the curve. The more adjustment points I have on the curve, the harder I can move them and the less accurate they are.