29 March 1996 Illuminant-independent compression of color images
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Abstract
The coding of color images is usually confined to coding the color appearance for the illumination present at acquisition time. However, an exact reconstruction of a coded and transmitted document should produce the same color appearance as the original under variable illuminations. In this work we develop a representation of the necessary information to ensure such a color constancy. The only precondition is the absence of mutual illumination as a small but reasonable restriction to the type of illumination. The proposed image representation is developed to a complete image coder concept. Using this concept a hierarchical image description is achieved introducing a minimal color difference.
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Werner Praefcke, Frank Mueller, Klaus Illgner, "Illuminant-independent compression of color images", Proc. SPIE 2658, Color Imaging: Device-Independent Color, Color Hard Copy, and Graphic Arts, (29 March 1996); doi: 10.1117/12.236978; http://dx.doi.org/10.1117/12.236978
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KEYWORDS
Image compression

Reflectivity

Error analysis

Image processing

Visualization

Computer programming

Image quality

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