Calibrated Colour Mapping Between LCD and CRT Displays: A Case Study
Bastani, B., Cressman, W., and Funt, B., "Calibrated Colour Mapping
Between LCD and CRT Displays: A Case Study",
Proc. Second European Conference on Color in Graphics, Imaging and
Vision, Achen, April 2004.
Abstract:
The primary goal of a colour characterization model is to establish a
mapping from digital input values di (i= R, G, B) to tristimulus values
such as XYZ. A good characterization model should be fast, use a small
amount of data, and allow for backward mapping from tristimulus to di.
This paper demonstrates implementations of three different colour
characterization models, each tested on seven display devices. The
characterization models implemented in this study are a 3D LUT, a
linear model, 2 and the masking model introduced by Tamura et al. in
2002.6 The devices include two CRT Monitors, three LCD Monitors, and
two LCD Projectors. Several characteristics of the display devices are
presented in relation to data collection and characterization modeling.
These include the long phosphor stabilization time on CRT monitors and
the shifting chromaticity of mixed colours on LCD displays. The results
of this study indicate that a simple linear model is the most effective
for all devices used in the study, despite the common belief that it is
sometimes inappropriate for LCD monitors. A simple extension to the
linear model is presented, and it is demonstrated that this extension
improves white prediction without causing significant errors for other
colours.
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