Circuit for preventing high-intensity false color caused by colo

Details Circuit for preventing high-intensity false color caused by colo Circuit for preventing high-intensity false color caused by colo

1989-02-27

1990-11-27

Shepperd, John W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 47, 358 36, H04N 907

Patent

active

049740660

ABSTRACT:
A luminance signal and a color signal are separated from a color picture signal output from an imaging device with a plurality of color filters mounted thereon. The color filters are saturated at different intensity levels. This luminance signal is delayed to generate two delayed signals that respectively cover the front and rear edges of the color signal and a delayed signal that covers the interval between these edges. The color signal is suppressed by these delayed signals when the incident light has a high intensity, thereby preventing false color from occurring due to the incident light having a high intensity.

REFERENCES:
patent: 4153912 (1979-05-01), Gold
patent: 4480266 (1984-10-01), Hashimoto
patent: 4593313 (1986-06-01), Nagasaki et al.
patent: 4716455 (1987-12-01), Ozawa et al.
patent: 4734758 (1988-03-01), Honjo
patent: 4736242 (1988-04-01), Takanashi et al.
patent: 4807026 (1989-02-01), Nishioka et al.
patent: 4816909 (1989-03-01), Kimura et al.

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