A revision of CIECAM97s for practical applications

The CIE 1997 Interim Color Appearance Model (Simple Version), abbreviated CIECAM97s, was proposed by CIE TC1‐34 in 1997 in response to the needs of the imaging industry for a single, practically applicable, color appearance model for device‐independent color imaging applications. CIECAM97s has been successful in focusing a large number of researchers on a single direction to implement, evaluate, and suggest improvements for a single CIE model. However, CIECAM97s has been less successful in achieving the goal of being practically applicable. CIECAM97s remains a complex color appearance model, and this complexity seems to be somewhat of a barrier for its widespread adoption and use. CIE TC8‐01 is currently working toward recommendations for practical application of CIECAM97s. Part of TC8‐01's work is the consideration and evaluation of potential revisions and simplifications of CIECAM97s. This article incorporates several previously proposed enhancements of CIECAM97s and a few new suggestions into a revised model for the consideration of TC8‐01. It is hoped that this revision will aid in focusing ongoing model tests and perhaps be the starting point for a new CIE recommendation, once sufficient testing and perhaps further refinements are completed.