Comparison of Metamerism Estimates in Video Paths using CAM’s Models

The paper deals with the issues of metamerism in multimedia and telecommunication paths. Attention is focused on the end devices of the end-to-end path. A comparison is made in the assessments using traditional coordinate systems for representing colors, and in the coordinates of modern color models CAM16, CAM20u, ZCAM. Numerical differences in the obtained data are shown under the same input conditions. Statistical data of metamer estimates using Mac Adam ellipses are presented. A study was conducted in the work, showing that the spectral compositions of colors can be perceived as one color (based on McAdam’s data), but when processed, their number can be different. Based on research, we can say that the differences can reach to 15%. When processing ZCAM models, the number of colors taken into account during transmission will be greater, which makes it possible to reduce the degree of influence of metamerism on color reproduction.

DOI: https://doi.org/10.1109/PICST57299.2022.10238685