Calibrated Colour Mapping Between LCD and CRT Displays: A Case Study

B. Bastani, W. Cressman, and B. Funt, "Calibrated Colour Mapping Between LCD and CRT Displays: A Case Study", Colour Research and Application, (in press)


The primary goal of a color 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. The characterization models considered here are for the case of and end user who has no direct knowledge of the internal properties of the display device or its device driver. Three characterization models tested on seven different display devices are presented. The characterization models implemented in this study are a 3D Look Up Table (LUT)2, a linear model5, and the masking model Tamura et al. in 20029. The devices include two CRT Monitors, three LCD Monitors, and two LCD Projectors. The results of this study indicate that a simple linear model is the most effective and efficient for all devices used in the study. 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 colors.

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Keywords: Color calibration, colorimetry, gamut mapping, color prediction

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