Color Gamut of SOCS and its Comparison to Pointer's Gamut

摘要

The Standard object color spectra (SOCS) database was developed for proper evaluation of color-sensor quality of image input devices. The SOCS has been published in a ISO technical report, ISO TR 16066. A CD-ROM is attached to the ISO-TR. The CD-ROM contains more than fifty thousands spectra of objects, such as photographic materials, offset prints, computer color prints, paint (not for art), paints (oil paints, water colors), textiles, flowers and leaves, outdoor scenes, and human skin. Color gamut of SOCS for standard illuminant D65 was calculated and discussed. Color gamut efficiency of SOCS, which is ratios of the area and the volume of color gamut of SOCS to these within optimal color loci, is almost the same as the performance of photographic color reversal film. Also, color gamut of SOCS for illuminant C was calculated and compared to Pointer's gamut.