I wonder if there's any way to blend two (or more) RGB colors in a reversible way? I mean, imagine we have an RGB pixel (R: 55, G:35, B:255), and we need to extract the two other RGB pixels that create this pixel when blended.
The point is that if we think of RGB as a cube (X=R, Y=G, Z=B), we can think of any RGB as a triangle within this cube. Is it possible to assign one point inside (or outside) this triangle and get the information of the other 3 RGB points in this triangle?