Solid-state image pickup apparatus

Details Solid-state image pickup apparatus Solid-state image pickup apparatus

2006-05-23

2006-05-23

Ometz, David (Department: 2615)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S294000, C348S301000, C348S671000

Reexamination Certificate

active

07050099

ABSTRACT:
Gray level data of boundary pixels that are adjacent to a block boundary in a photoelectric conversion section is stored. Then, a cumulative histogram regarding the number of pixels for different gray levels is produced based on the stored gray level data separately for each block, and a data table representing the correspondence between each gray level before correction and that after correction for the block to be corrected is produced so as to reduce the difference between the cumulative histograms. The data table is stored in a correction data RAM. By using the data table, the outputs of the block to be corrected are non-linearly corrected for different gray levels.

REFERENCES:
patent: 6023533 (2000-02-01), Sano et al.
patent: 6674444 (2004-01-01), Tahara
patent: 6985182 (2006-01-01), Morinaka et al.
patent: 06178113 (1994-06-01), None
patent: 10191055 (1998-07-01), None
U.S. Appl. No. 10/084,123, filed Feb. 27, 2002, Komobuchi et al.

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