Image processing apparatus and method

Details Image processing apparatus and method Image processing apparatus and method

2005-02-01

2005-02-01

Johns, Andrew W. (Department: 2621)

Image analysis

Color image processing

C358S003260

Reexamination Certificate

active

06850640

ABSTRACT:
When one viewing condition parameter is applied to all pixels, a visual effect between a single color and a background expressed on a rasterized image cannot be reflected on a color matching result. To prevent this, when color matching using a human color appearance model is to be performed, the distance between an image and a viewer and the resolution of the image are input. On the basis of the input distance and resolution, a stimulus region, adjacent region, and background region based on a plurality of field angles (e.g., 2°, 4°, and 10°) for a pixel of interest on the image are defined, thereby determining a viewing condition parameter and performing color matching.

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U.S. Appl. No. 09/358,407, filed Jul. 22, 1999.
U.S. Appl. No. 09/358,410 filed Jul. 22, 1999.

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