Color Appearance Models

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About Color Appearance Models

Product Description This book is a comprehensive state-of-the-art reference focusing on color appearance models, innovative tools that describe and predict color under a variety of viewing conditions. Written by a leading authority, this book provides any professional or student versed in color science basics with a complete overview of the following five color appearance models: Nayatani et al.; Hunt; RLAB; ATD; and LLAB. For each model, the book examines such aspects as input data, adaptation, opponent-color dimensions, color defining features, predictable phenomena, and the pros and cons of that model. It offers essential background information on human color perception, psychophysics, and the CIE (Commission Internationale de l'Eclairage) system of colorimetry that has formed the foundation for color technology since the 1930s. Also addressed are color appearance terminology, color order systems, color appearance phenomena, and an analysis of viewing conditions. The book discusses chromatic adaptation in depth, one of the most important elements of color appearance. The book also includes an overview of device-independent color imaging, the application that represents the greatest technological push for the development of color appearance models. In all, Color Appearance Models gives you an excellent understanding of the foundation and forefront of color technology, innovative tools now available, and how these recent developments are likely to revolutionize the field. Pages: 400 From the Inside Flap The law of proportion according to which the several colors are formed, even if a man knew, he would be foolish in telling, for he could not give any necessary reason, nor indeed any tolerable or probable explanation of them. -Plato Despite Plato's warning, this book is about one of the major unresolved issues in the field of color science, the efforts that have been made toward its resolution, and the techniques that can be used to address current technological problems. That issue is the prediction of the color appearance experienced by an observer when viewing stimuli in natural, complex settings. Useful solutions to this problem have impacts in a number of industries, such as lighting, materials, and imaging. In lighting, color appearance models can be used to predict the color-rendering properties of various light sources, thereby allowing specification of quality rather than just efficiency. In materials fields (coatings, plastics, textiles, and so on), color appearance models can be used to specify tolerances across a wider variety of viewing conditions than is currently possible. The imaging industries have produced the biggest demand for accurate and practical color appearance models. The rapid growth in color-imaging technology, particularly the desktop publishing market, has led to the emergence of color-management systems. It is widely acknowledged that such systems require color appearance models to allow images originating in one medium and viewed in a particular environment to be acceptably reproduced in a second medium and viewed under different conditions. While the need for color appearance models is recognized, their development has been at the forefront of color science and confined to the discourse of academic journals and conferences. This book brings the fundamental issues and current solutions in the area of color appearance modeling together in a single place for those needing to solve practical problems. Everyone knows what color is, but the accurate description and specification of colors is quite another story. In 1931, the Commission Internationale de l'...clairage (CIE) recommended a system for color measurement that established the basis for modern colorimetry. That system allowed the specification of color matches through CIE XYZ tristimulus values. However, it was immediately recognized that more advanced techniques were required. The CIE recommended the CIELAB and CIELUV color spac