By Maureen Stone
Annotation Maureen Stone's box consultant to electronic colour offers a survey of electronic colour with specified emphasis on these fields vital for special effects. The e-book presents the root for knowing colour and its functions, discusses colour media and colour administration and using colour in special effects, together with colour layout and choice. The booklet presents a consultant for an individual who desires to comprehend and follow electronic colour. An annotated bibliography offers in-depth references for extra examine on every one topic Read more...
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Additional info for A field guide to digital color
This transformation scales, rotates, and skews the cube. The CIE XYZ values can be mapped to the chromaticity diagram via the usual formulas. The result is a triangle, whose vertices are red, green, and blue. White and black lie on the same point. y x xy Chromaticity Values not provide complete information about whether a color lies inside both color spaces because of the missing brightness information. That is, a color that falls inside the triangle may not actually be inside the color space volume because it is too bright or too dark.
All visible colors lie within the shape bounded by this path and the line that connects 13 Figure 13. The CIE tristimulus values are calculated by multiplying the stimulus times the color-matching functions and integrating the result. They are normalized such that equal energy white gives XYZ = (1, 1, 1), as shown. A Field Guide to Digital Color Figure 14. CIE 1931 chromaticity diagram showing the spectrum locus, the purple line, and the black-body curve. The transformation from CIE XYZ is shown in the equations.
Absolute size matters also, which is why the paint chip is always less vivid than the painted wall. This section demonstrates some of the spatial phenomena that affect color appearance. Simultaneous contrast describes the influence of immediately surrounding colors on the perception of a color. The simplest model for simultaneous contrast is that the afterimage of the surrounding color is added into the perception of the surrounded color. Therefore, a gray patch on a dark background looks lighter white) than a gray patch (add on a white background (add black), and a gray patch on a 32 2 Color Appearance Figure 12.
A field guide to digital color by Maureen Stone