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Color theory and modeling for computer graphics, by Haim Levkowitz

By Haim Levkowitz

Color conception and Modeling for special effects, Visualization, and Multimedia Applications bargains with colour imaginative and prescient and visible computing. This e-book presents an outline of the human visible method with an emphasis on colour imaginative and prescient and notion. The ebook then is going directly to speak about how human colour imaginative and prescient and notion are utilized in numerous purposes utilizing computer-generated monitors, similar to special effects and data and knowledge visualization.
Color conception and Modeling for special effects, Visualization, and Multimedia Applications is appropriate as a secondary textual content for a graduate-level path on special effects, computing device imaging, or multimedia computing and as a reference for researchers and practitioners constructing special effects and multimedia purposes.

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Example text

The Munsell Book of Color The Munsell Book of Color is an empirical organization of colors based on human perception. It was derived empirically by Munsell-based on visual judgment-to be uniform. Colors are organized in a way that appears to represent uniformity in human color perception more accurately [Fe189, J B89, Mun761. The space is composed of color chips organized in equal perceptual steps along its three numerically labeled axes HVC: hue, value (lightness), and chroma (saturation). Any color can be specified by a unique HVC value combination.

A); (2’). Additional development yielded the CIE 1964 Standard Supplementary Observer: z l o ( X ) , ylo(X), zlo(X); (10’). The former describe “average” normal color vision for a field of view of 2”; the latter is extended to a field of view of 10’. Together they provide a reliable, reproducible, precise specification of normal color vision. They have been defined to have a direct relationship with the luminous efficiency function Vx. 2 I Pseudo-perceptual order systems: HLS in RGB cube. 3 Pseudo-perceptual order systems: YIQ in RGB cube.

For example, the same color that looked quite subdued on a small paint chip a t the paint store, will look very intense on a large wall; intensely colorful natural scenes (such as sunsets) can look wan in snapshots, but impressive on a large screen. This means that pictures on the large screen of a High Definition Television will appear more colorful, thus part of its appeal. It also means that while designing graphical user interfaces (GUI), small hue differences between windows in the interface are sufficient to distinguish them; there is no need for jarring, saturated colors.

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