ctransform

vector  ctransform(string fromspace, string tospace, vector clr)

vector  ctransform(string tospace, vector clr)

If you don’t give a fromspace, assumes "cspace:rgb".

Transforms color tuple clr from one color space to another.

The possible arguments for fromspace and tospace are "cspace:rgb", "cspace:hsl", "cspace:hsv", "cspace:XYZ", "cspace:Lab", and "cspace:tmi". Notes

notes

• The hue-based systems are normalized with the hue going from 0 to 1. LAB and TMI are not normalized.
• For "cspace:rgb", the primaries are assumed to be in linear NTSC space (gamma 1.0), using C reference white.
• C reference white is used for conversion when converting from XYZ to LAB space (and vice versa).