| 1 | == Gamut reduction == |
| 2 | |
| 3 | Gamut reduction is the process of converting an image into another image using a different set of colours. |
| 4 | |
| 5 | When the convex hull of the destination palette contains all the colours of the source image, standard multi-colour dithering can be applied. This is always the case when the destination palette contains the 8 Neugebauer primaries, but it otherwise depends on the source image. |
| 6 | |
| 7 | We’re interested in a more generic approach: creating a continuous mapping between the RGB cube (or the corresponding colour solid in the current colourspace) and the convex hull of the destination palette. We need to handle cases where only 2 colours are available, or where even black and white are not available. |
| 8 | |
| 9 | === Bibliography === |
| 10 | |
| 11 | * ![1] S. Chosson, R.D. Hersch. "[http://diwww.epfl.ch/w3lsp/publications/colour/tfcgr.html Techniques for Color-Gamut Reduction]", SPIE’s International Technical Group Newsletter, Electronic Imaging 13.2, June 2003, 5-8 |
| 12 | * ![2] S. Chosson, R.D. Hersch. "[http://diwww.epfl.ch/w3lsp/publications/colour/cgrtfpwci.html Color Gamut Reduction Techniques for Printing with Custom Inks]", Conf. Color Imaging: Device-Independent Color, Color Hardcopy, and Graphic Arts VII, 2002, SPIE Vol. 4663, 110-120 |
| 13 | * ![3] E.J. Stollnitz, V. Ostromoukhov, D. Salesin. "[http://diwww.epfl.ch/w3lsp/publications/colour/rciuci.html Reproducing Color Images Using Custom Inks]", Proc. SIGGRAPH 98, in Computer Graphics Proceedings, Annual Conference Series, 1998, 267-274 |