Image analysis – Image compression or coding – Quantization
Reexamination Certificate
2006-04-18
2006-04-18
Patel, Kanjibhai (Department: 2625)
Image analysis
Image compression or coding
Quantization
C382S166000, C348S391100
Reexamination Certificate
active
07031541
ABSTRACT:
A system and method of processing a component color image signal extracted from image signals are disclosed, including a quantizing unit for quantizing the component color image signal over a plurality of quantization regions of the component color image signal, such that the color difference per unit error caused by quantization of the component color image signal in each of the plurality of quantization regions is within a predetermined value. This quantizing unit operates also to quantize the component color image signal under a quantization level number different for each of regions specified by the value of the component color image signal, as a threshold, corresponding to either the polarity change or the maximum of the component color image signal.
REFERENCES:
patent: 5072290 (1991-12-01), Yamagami et al.
patent: 5307088 (1994-04-01), Inuzuka et al.
patent: 5377025 (1994-12-01), Spaulding et al.
patent: 5684920 (1997-11-01), Iwakami et al.
patent: 6246345 (2001-06-01), Davidson et al.
patent: 60-197072 (1985-10-01), None
U.S. Appl. No. 10/600,333, filed Jun. 23, 2003, Suino et al.
U.S. Appl. No. 10/646,754, filed Aug. 25, 2003, Kodama et al.
U.S. Appl. No 10/647,337, filed Aug. 26, 2003, Sakuyama et al.
U.S. Appl. No. 10/659,349, filed Sep. 11, 2003, Nomizu et al.
U.S. Appl. No. 10/682,121, filed Oct. 10, 2003, Hara et al.
U.S. Appl. No. 10/691,623, filed Oct. 24, 2003, Hara et al.
U.S. Appl. No. 10/703,509, filed Nov. 10, 2003, Nomizu et al.
U.S. Appl. No. 10/716,429, filed Nov. 20, 2003, Nomizu et al.
U.S. Appl. No. 10/623,558, filed Jul. 22, 2003, Sakuyama et al.
Hung Yubin
Patel Kanjibhai
Ricoh & Company, Ltd.
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