The Development of Color Error Formulas Useful in Color Television
The chronology of the development of two new color error formulas is presented from the time that it was discovered that the CIE color error formula did not predict the rank order of the color errors of a number of test colors when the rank order of the errors of these same colors had been subjectively determined. One of the new formulas that gave much better agreement to subjective evaluation is the weighting of the U*, V*, and W* components in the CIE formula from 1, 1, 1 to 0.2, 0.5, 1. The other formula used the square root of the properly weighted squares of hue, saturation, and brightness of an artificial NTSC-like color system. An overall color system optimized by using one of these formulas gave subjectively less error than a system optimized through the use of the original CIE formula.
- Print ISSN
- 0036-1682
- Published
- 1979-10
- Content type
- Original Research
- DOI
- 10.5594/J10375