Algorithmic improvements for the CIECAM02 and CAM16 color appearance models

TL;DR

This paper identifies flaws in the CIECAM02 and CAM16 color appearance models, proposes fixes, and presents an improved, more efficient version that handles all edge cases correctly.

Contribution

It introduces algorithmic improvements that make the models shorter, more efficient, and robust for all scenarios, enhancing their practical applicability.

Findings

The improved model is algebraically equivalent to the original.

It is more efficient in computation.

It correctly handles all edge cases.

Abstract

This note is concerned with the CIECAM02 color appearance model and its successor, the CAM16 color appearance model. Several algorithmic flaws are pointed out and remedies are suggested. The resulting color model is algebraically equivalent to CIECAM02/CAM16, but shorter, more efficient, and works correctly for all edge cases.