PROBLEM STATEMENT: CIECAM97s was chosen as a CIE recommended color appearance model based on its high-performance on object color appearance predictions under various viewing conditions. The model had been developed on the basis of well-defined features from other models. An IDL interactive CIECAM97s tool has been developed in order to demonstrate the influence of CIECAM97s parameters on images...

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 deviceindependent color imaging applications. CIECAM97s has been successful in focusing a large number of researchers in a single direction to implement, evaluate,...

A new CIE color appearance model (CIECAM02) has been developed. This paper describes the three major drawbacks of the earlier CIECAM97s model, and shows how the new model performs in these color regions. In addition, both models were tested using available data groups. The results are consistent in that CIECAM02 performed as well as, or better than, CIECAM97s in almost all cases, there being a ...

The CIE Technical Committee 8-01, color appearance models for color management applications, has recently proposed a single set of revisions to the CIECAM97s color appearance model. This new model, called CIECAM02, is based on CIECAM97s but includes many revisions and some simplifications. A partial list of revisions includes a linear chromatic adaptation transform, a new non-linear response co...

At its May, 1997 meeting in Kyoto, CIE TC1-34 considered 4 proposed color appearance models for adoption as the CIECAM97s model. The ZLAB model was one of those considered. Although it was rejected by TC1-34 because of its simplicity, there are many situations (such as typical crossmedia image reproduction) for which a more complex model might not be necessary, or even useful. Thus, the ZLAB mo...

Based on the current state of CIECAM97s, there is a missing adjustment associated with a black-point unlike a white-point. As an attempt to improve the performance of CIECAM97s for color reproduction, six algorithms focusing on “black-point adaptation” were generated based on previous work on white-point adaptation methods and gamut mapping methods. The six algorithms were used to reproduce fou...

Color appearance models provide a powerful tool for achieving a viewing condition independent color representation. However, current color appearance models such as CIECAM97s and CAM97s2 are more complex than previous CIE device independent color spaces, such as CIELAB and CIELUV. Therefore it is important to understand how to correctly measure and set the input parameters. This paper provides ...

: The CIECAM97s and its revision, as a colour appearance model, were applied for a series of fabrics with different colours and depths to explain their colour appearance coordinates in similar viewing conditions. The results show that due to some modifications which expand the scale, the modified model has improved capadilities in calculating chroma. Besides, the calculations were simpler for t...