Uh, not really. But I've solved that one already so thanks.

Currently I got a thermal image mapping program which converts grayscale pictures to RGB. Now, what I need to do is to convert those 3 RGB colors into other three colours. The choice of colours are white, black, red, green and blue.

To explain more, for the thermal mapping using grayscale converted to RGB, red denotes hot areas, green-zero, and blue-cold. What I want to do is to make a program that enables you to choose the colours...