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By Maureen Stone

Annotation Maureen Stone's box advisor to electronic colour provides a survey of electronic colour with precise emphasis on these fields vital for special effects. The booklet offers the basis for realizing colour and its purposes, discusses colour media and colour administration and using colour in special effects, together with colour layout and choice. The publication presents a consultant for a person who desires to  Read more...

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Any colors that are mixtures of these two colors will plot along the line connecting them. The distance along this line is proportional to the relative brightness of the two colors. For three colors, all mixtures will lie within the triangle formed by their chromaticity coordinates, and so on. The monochromatic spectral colors lie along the horse-shoe shaped path, which is called the spectrum locus. All visible colors lie within the shape bounded by this path and the line that connects 13 Figure 13.

The chromaticity diagram illustrates how color is additive. Take two colors, each of which plots as a point in the chromaticity diagram. Any colors that are mixtures of these two colors will plot along the line connecting them. The distance along this line is proportional to the relative brightness of the two colors. For three colors, all mixtures will lie within the triangle formed by their chromaticity coordinates, and so on. The monochromatic spectral colors lie along the horse-shoe shaped path, which is called the spectrum locus.

The light from these physically specified primaries can be quantitatively defined using the color measurement techniques based on CIE colorimetry, as described in Chapter 1. This quantitative description can be used to predict any combination of the primaries using Grassmann’s additivity law, which was also described in Chapter 1. This law states that given the tristimulus values for the primary colors, we can compute the tristimulus values for any mixture by summing the tristimulus values of the primaries.

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