CIE
Division 8 - TC8-03: Survey of Gamut Mapping Papers
Hung (1995)
A new way of dealing with gamut mismatch is presented in this paper. It
aims at reducing the limitations of printer gamuts in terms of chroma by
using an artificially darker reference white, as a consequence of which
the chroma of printed colours increases. The following formula is used
for the white point shift:
L* = 116(Y/(aYn))^1/3 -16 where a is from the interval (0.1]
The author suggests to use a = 0.95 for soft-proofing and a = 0.7
or less for prints. While this method might sound promising, it also reduces
the dynamic range of the output medium and will only work if the ërealí
reference white is not present in the observerís field of view.
Last updated: 17 August 1999 by Jan
Morovic