I ran across a table of settings for Photoshop’s channel mixer for simulating various analog film stocks. However, the RGB color values are given as numbers in the 0-255 range, and channel mixer uses percentages. Any idea how to convert the RGB values to plug them into channel mixer?
Yeah, assuming it’s a linear percentage, this should be basic rule of three. So, divide by 255, then multiply by 100.
Dividing by 2.55 is just doing that in one step…