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Color Appearance Models to Match Images in Cross Media Color Reproduction Including Print Media


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1 Creation Offset Press, Ernakulam, India
     

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Color appearance model is a mathematical models to predict the image appearance in different lighting and viewing conditions in different media. The CIE colorimetry based on CIE Lab is applicable to the system where the white point is same or no more change. Different color appearance models are developed by considering the different factors such as simultaneous contrast, hue and colorfulness, brightness and lightness, saturation and chroma etc. Each model has their mathematical calculations and their prediction may vary from other models. CIE CAM02 is accepted in overall industry. The image color appearance models shortly known as iCAM is applicable to make the prediction of more complex stimuli in wide variety of color viewing conditions. Psychophysical experimental data is one of the best methods for evaluating the different appearance models. This paper reviews the applicability of different color models for matching the images for cross media color reproduction including print media. After the adoption of CIE LAB, there evolved a plan for finding out the more precise, accurate, comprehensive and exact color appearance models due to the increased interest in the late 1980's and 1990's and the practical applications requiring appearance models has accelerated the works in this area. These great efforts have resulted in the formulation and adoption of CIECAM97s in 1997.

Keywords

Color Appearance Model, CIE Colorimetry, RLAB, Nayatani, Hunt Model, CIE Lab.
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  • Color Appearance Models to Match Images in Cross Media Color Reproduction Including Print Media

Abstract Views: 468  |  PDF Views: 0

Authors

C. Dinesh
Creation Offset Press, Ernakulam, India

Abstract


Color appearance model is a mathematical models to predict the image appearance in different lighting and viewing conditions in different media. The CIE colorimetry based on CIE Lab is applicable to the system where the white point is same or no more change. Different color appearance models are developed by considering the different factors such as simultaneous contrast, hue and colorfulness, brightness and lightness, saturation and chroma etc. Each model has their mathematical calculations and their prediction may vary from other models. CIE CAM02 is accepted in overall industry. The image color appearance models shortly known as iCAM is applicable to make the prediction of more complex stimuli in wide variety of color viewing conditions. Psychophysical experimental data is one of the best methods for evaluating the different appearance models. This paper reviews the applicability of different color models for matching the images for cross media color reproduction including print media. After the adoption of CIE LAB, there evolved a plan for finding out the more precise, accurate, comprehensive and exact color appearance models due to the increased interest in the late 1980's and 1990's and the practical applications requiring appearance models has accelerated the works in this area. These great efforts have resulted in the formulation and adoption of CIECAM97s in 1997.

Keywords


Color Appearance Model, CIE Colorimetry, RLAB, Nayatani, Hunt Model, CIE Lab.

References