Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1991-10-21
1993-11-30
Coles, Sr., Edward L.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 41, 358163, H04N 907
Patent
active
052670287
ABSTRACT:
A solid state image pickup apparatus for obtaining a luminance signal from the average value of outputs of two or more pixels varying in spectral characteristic from line to line. It includes a circuit to correct the amplitude of a luminance signal in every other line such that the amplitude of the luminance signal in each line is constant in a uniform luminance face image pickup state. The circuit may automatically switch the amplitude of the luminance signal in accordance with a change in the color temperature.
REFERENCES:
patent: 4544952 (1985-10-01), van Cang
patent: 4590520 (1986-05-01), Frame et al.
patent: 4701784 (1987-10-01), Matsuoka et al.
patent: 4887252 (1989-12-01), Miyakawa et al.
patent: 5164829 (1992-11-01), Wada
Matoba Kazuyuki
Sasaki Takashi
Suga Akira
Yamamoto Mayumi
Canon Kabushiki Kaisha
Coles Sr. Edward L.
Vu Kim Yen
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