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I. Color Space: The final frontier

In this Appendix, we are going to try to explain the relationship between the RGB, CMYK, and HSV color systems so as to (hopefully) make them more intuitive. GMT allows users to specify colors in cpt files in either of these three systems. Interpolation between colors is performed in either RGB or HSV, depending on the specification in the cpt file. Below, we will explain why this all matters.

Subsections

- I.1 RGB color system
- I.2 HSV color system
- I.3 The color cube
- I.4 Color interpolation
- I.5 Artificial illumination
- I.6 Thinking in RGB or HSV
- I.7 CMYK color system

Next: I.1 RGB color system Up: GMT - Technical Reference Previous: H.4 Hints Contents Index