Video camera with manual color balance adjusting option

Details Video camera with manual color balance adjusting option Video camera with manual color balance adjusting option

1991-01-18

1992-06-02

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 10, H04N 94, H04N 964

Patent

active

051191784

ABSTRACT:
A video camera whereby the photographer can switch from an automatic to a manual adjustment mode. In the manual mode a color bar chart on a lens cap is pictured on part of the viewfinder of the camera, while an electronically generated reference color bar chart is shown on the other part. The user adjusts one or two potentiometers, each adjusting the gain of a color signal amplifier, until the two color bar charts have the same colors.

REFERENCES:
patent: 4249197 (1981-02-01), van Spaandonk et al.
patent: 4739394 (1988-04-01), Oda et al.
patent: 4951134 (1990-08-01), Nakasuma et al.

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