LUT was created by the color matching program, by passing in a reference and target image. Vapoursynth was used for trimming and mass applying filters, such as mass applying a folder of LUTs to every scenes of the video, you can't do that with regular NLE. This was make possible upon the fact that we have a full series of reference in Season set so that we can create a LUT for every scene.HakkaiBills93 wrote: just wait! if i correctly understand you use vapoursynth and can alter the lut to build it? if it's the case yes it's very interesting , i allways think the lut should have been done in one time so the only way should be to get already good looking episode source to match but if you can create it , it's differrent . if your test don't work try to remove the color cast before creating your lut , for what i know the only noticeable change on each episode is the color cast but with it remove it remain the same alterations with sometimes slight differrence (red, and cyan are the most noticeable ones)
However this is not possible if you're to match it to scanned cels, simply because there ain't many of them and there're scattered around. You don't even have a 1 to 1 scan to match with a frame. So the ideal way is just to sample the color of the target and the cel scan into color palette images and match those, and it was prove to work in my post above. I'm surprised that there's actually someone in this world who collected a lot of them physically as seem in MrWalnut4's package, as many of them seemingly coming from the same scanner.