An Extension of von Kries-type Chromatic Adaptation Transform by Parallel Projection Matrix : Trichromatic System in Computer Graphics (3)

• Tamagaki Yoichi

  Chiba University

Bibliographic Information

Other Title

• 平行投影行列によるvon Kriesタイプ色順応変換の拡張 : コンピュータグラフィックにおける三色表色系(3)

Abstract

Parallel projection transform with spectral reflectance input and spectral reflectance output was represented as the concatenation of the author's proposed "sensor" and "generator" operators, together with the inverse matrix converting the "sensor" output data to the "generator" input data. Since the "sensor" was created so as to include spectral information of the illuminant, the inverse matrix played the role of discounting color of the illuminant. Additionally, an incomplete chromatic adaptation transform was obtained by incorporating a power function of the spectral composition of illuminant that would act as a chromatic adaptation rate parameter. Thus, the von Kries-type transform of chromatic adaptation was expanded by concatenating the inverse matrix and the "sensor" operator. This transform was applied to the derivation of color-appearance grids for the illuminant A from Munsell data (with 5/). By adjusting the chromatic adaptation rate, the compression of Munsell-Chroma contours in the GY-P direction produced by the von Kries model under adapting illuminant A was successfully simulated.

Journal

• Bulletin of Japanese Society for the Science of Design

  Bulletin of Japanese Society for the Science of Design 52 (2), 1-8, 2005

  Japanese Society for the Science of Design

Keywords

• Color Space
• Chromatic Adaptation
• Trichromatic System

Details

• CRID: 1390001205411826688
• NII Article ID: 110003825327
• DOI: 10.11247/jssdj.52.1_2
• ISSN: 21865221
• ISSN: 09108173
• Text Lang: ja
• Data Source:
  • JaLC
  • CiNii Articles
• Abstract License Flag: Disallowed