Optimization of Standard Object Color Spectrum Database Based on Human Eye Color Discrimination Threshold Cycle Algorithm

The Standard Object Color Spectrum (SOCS) database is a database in the Technical Report (TR) of the Japanese Organization for Standardization (JIS) and International Standardization (ISO) and is widely used in color reproduction evaluation and color science research. This paper proposes an optimized loop algorithm recommended by Qian Cao et al. in 2022 to remove the data redundancy points of SOCS and improve the problem of uneven distribution of SOCS in LAB color space. Compared with SOCS, the color gamut volume of the optimized SOCS is almost unchanged, and the data is reduced by 33.35%, which overcomes the shortcomings of accumulating too many sample points in the local space, and the uniformity distribution of optimized SOCS in the LAB color space is greatly improved.