Facsimile and static presentation processing – Natural color facsimile – Color correction
Reexamination Certificate
2005-07-06
2008-11-11
Williams, Kimberly A (Department: 2625)
Facsimile and static presentation processing
Natural color facsimile
Color correction
C358S001130, C358S002100, C358S003270
Reexamination Certificate
active
07450280
ABSTRACT:
An image-quality-mode receiving unit receives a selection of an image quality mode for forming an image based on image data. A first gradation converting unit performs a gradation conversion of the image data by setting a gradation conversion parameter based on the image quality mode. A feature extracting unit performs a gradation conversion of a feature-extraction threshold based on the gradation conversion parameter, and extracts, based on the feature-extraction threshold after the gradation conversion, a feature amount from the image data after the gradation conversion. A second gradation converting unit performs a gradation conversion of the image data by setting a gradation conversion parameter based on a result of extracting the feature amount and the image quality mode.
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patent: 2002/0181024 (2002-12-01), Morimoto et al.
patent: 2004/0239996 (2004-12-01), Hayashi
patent: 2007/0013782 (2007-01-01), Kobayashi
patent: 2002-325179 (2002-11-01), None
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Ricoh Company Limited
Williams Kimberly A
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