System and method for constructing calibrated color tables in color image reproduction systems using stochastic supersampling

摘要

A color table calibration system produces multiple color samples for each target color point in a color table. Each sample is offset from the target color within the color space by a random amount that is equal to a fixed offset plus a random interval. In the preferred implementation, the fixed offset is equal to a distance approximately equal to the color excursion caused by noise and the random interval is constrained to not exceed the fixed offset. The color table calibration system prints a set of multiple samples for each color point. The color samples are measured using conventional measuring devices and then averaged. The color table calibration system uses the sample average to derive a calibrated color table. The pseudo random supersampling and averaging for each color point reduces errors introduced by mechanical and environmental variations.