A method of color correction which matches color printouts to the color monitors used to view the image
and the criteria used to develop the method are presented. This method will be contrasted with alternative
matching methods, such as tristimulus match.
The tristimulus match maps in-gamut colors to the closest color available on the output device. If the color
is out-of-gamut, then an algorithm (such as maintain luminance, hue, or saturation) is used to choose a
color. When an image changes color in a smooth manner, the in-gamut colors match very closely, and the
out-of-gamut colors are pushed to some compromise color. The transition from in-gamut to out-of-gamut
color is readily apparent. If the in-gamut colors are adjusted to a less optimal match, the out-of-gamut
colors can then be given a better match, providing a smooth transition between in- and out-of-gamut
The method presented gives a more pleasing color match than a tristimulus match, if the image to be
matched includes colors which are both in-gamut and out-of-gamut for the output device, and is especially
useful if the output device has a small color gamut.