von Kries transform

The von Kries chromatic adaptaton method is a technique that is sometimes used in camera image processing. The method is to apply a gain to each of the human cone cell spectral sensitivity responses so as to keep the adapted appearance of the reference white constant.

von Kries transform is defined for the LMS Colour Space.
The more complete von Kries transform, used for colours in the XYZ or RGB colour spaces includes matrix transformations into and out of the LMS space.