
A controlled experimental setup used multichannel LED lighting to create HDR scenes. Ten observers performed visual matching tasks between real illuminated scenes and HDR display content across eight lighting conditions. Jzazbz, CIECAM16, and CAM16-UCS were evaluated, analysis using STRESS metrics showed CAM16-UCS achieved the best performance for both lightness and colorfulness predictions. Based on these findings, a tone mapping operator was developed utilizing CAM16-UCS color space with local adaptation and gamma adjustments derived from experimental data. The results demonstrate that CAM16-UCS provides superior color appearance prediction for HDR content and serves as an effective foundation for tone mapping applications.
Miaosen Zhou, Ming Ronnier Luo, "HDR Image Visual Matching and Tone Mapping based on CAM16-UCS" in Color and Imaging Conference, 2025, pp 215 - 220, https://doi.org/10.2352/CIC.2025.33.1.40