Simulation of a change in three-component color values by using

Details Simulation of a change in three-component color values by using Simulation of a change in three-component color values by using

1990-10-11

1991-10-15

Herndon, Heather R.

Boots, shoes, and leggings

340703, G06F 1520

Patent

active

050580400

ABSTRACT:
Based on a first color distribution which is formed by a first color in a color domain illuminated by an optical beam of a source color and is stored in a memory as picture elements, each representing an original color value, simulation is carried out for a second color distribution which will be formed in the color domain by a second color. For the first and second color distributions, a color space is defined by three primary colors with its origin used to represent black. An intermediate color value is calculated for each picture element with the original color values of the respective picture elements represented on a first color plane defined in the color space by the origin and the first and the source colors. By using the intermediate color values of the respective picture elements, new color values are calculated for the second color distribution with the new color values of the respective picture elements represented on a second color plane defined in the color space by the origin and the second and the source colors. Preferably, the intermediate color values are clustered into clusters representative of a predetermined number, such as 256, of discrete colors for use in representing the first and second color distributions by color codes assigned to the respective clusters.

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Maeda et al., "Haisyoku Simyuresyon Soti" (Device for Simulating Color Arrangement), Sen'i to Kogyo (Textiles and Industry), vol. 36, No. 6, pp. 195-199 (1980).
Phong, "Illumination for Computer Generated Pictures", Communications of the ACM, vol. 18, No. 6, pp. 311-317 (Jun. 1975).

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