Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Reproduce Color Adjustments from One Image to Another?
#4
You can do that with a CLUT (Color Lookup Table) which is a way to describe the mapping between input colors and output colors. Such a map should in theory be 16MPix, but you can in practice do with somewhat less (64 values per channel is fairly common).


With the GMIC filter suite:

On the initial image:
  • You load the before/after images as layers in the same image
  • In GMIC you use the Colors >  CLUT from After- Before layers to generate the CLUT (save to file)
On other images:

  • In GMIC you use Colors > Apply external CLUT and specify the saved CLUT image
This of course assumes that you only did color adjustments, in other words, that the value of a given pixel on the result only depends on the initial value of that very same pixel and not on its neighbors (no sharpening, etc...).
Reply


Messages In This Thread
RE: Reproduce Color Adjustments from One Image to Another? - by Ofnuts - 10-27-2023, 08:16 AM

Forum Jump: