Computer graphics processing and selective visual display system – Computer graphics processing – Attributes
Reexamination Certificate
2007-10-30
2007-10-30
Sajous, Wesner (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics processing
Attributes
C345S589000, C345S591000, C348S225100, C348S234000, C348S645000, C358S516000, C358S518000, C358S520000, C382S162000, C382S167000, C382S274000
Reexamination Certificate
active
11094937
ABSTRACT:
The image processing device of the present invention maps signal values on saturation segments to corresponding signals on an achromatic axis. In conjunction with this, mapping of color signal present around the saturation segments is mapped while preserving the continuity prior to mapping. The image processing device determines the displacement level entailed in mapping color signal surround a saturation segment so as to be inversely proportional to distance from the saturation segments. Since chroma of signals on the saturation segments change precipitously before and after mapping, by mapping signal surround the saturation segments so as to preserve the continuity of the original signals of signals surround the saturation segments, chroma gradation of signals on the saturation segments and signals around saturation segments can be preserved with a high degree of accuracy.
REFERENCES:
patent: 6360008 (2002-03-01), Suzuki et al.
patent: 2006/0256214 (2006-11-01), MacLean et al.
patent: 2000-032482 (2000-01-01), None
Abstract of Japanese Patent Publication No. 2000-032482, Pub. Date: Jan. 28, 2000, Patent Abstracts of Japan.
Fukasawa Kenji
Imai Shun
Martine & Penilla & Gencarella LLP
Sajous Wesner
Seiko Epson Corporation
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