Gray-scale adjacent pixel luminance nonlinearity compensation with three-color guns

Thom Carney; Stanley A. Klein

doi:10.1117/12.271591

4 April 1997 Gray-scale adjacent pixel luminance nonlinearity compensation with three-color guns

Thom Carney, Stanley A. Klein

Proceedings Volume 3018, Color Imaging: Device-Independent Color, Color Hard Copy, and Graphic Arts II; (1997) https://doi.org/10.1117/12.271591
Event: Electronic Imaging '97, 1997, San Jose, CA, United States

Abstract

The luminance of a given display pixel depends not only on the present input voltage but also on the input voltages for the preceding pixel or pixels along the display raster. This effect which we refer to as the adjacent pixel nonlinearity is never compensated for when 2D stimulus patterns are presented on standard display monitors. To compensate for the adjacent pixel nonlinearity, we summarize in this paper the methods for generating a 2D lookup table which corrects for the nonlinearity over most of the displays luminance range. This table works even if the current pixel luminance depends on more than one preceding pixel. The creation of a 2D lookup involves making a series of calibration measurements and a least squares data fitting procedure to determine the parameters for a model of the adjacent pixel nonlinearity proposed by Mulligan and Stone. Once the parameters are determined for a particular display the 2D lookup table is created. To increase the available mean luminance we have evaluated the utility for 2D lookup table use when multiple color guns are in use.

Citation Download Citation

Thom Carney and Stanley A. Klein "Gray-scale adjacent pixel luminance nonlinearity compensation with three-color guns", Proc. SPIE 3018, Color Imaging: Device-Independent Color, Color Hard Copy, and Graphic Arts II, (4 April 1997); https://doi.org/10.1117/12.271591

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