Black level control system for a color television camera

Details Black level control system for a color television camera Black level control system for a color television camera

1979-03-02

1980-08-19

Richardson, Robert L.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 39, 358 41, H04N 9535

Patent

active

042186994

ABSTRACT:
The individual red, green, and blue video white levels from a color television camera are maintained constant when the individual red, green, and blue black camera control levels are adjusted by the master black camera control by additively summing a first percentage of the selected master black level to the individual red, green, and blue black levels to form the final individual black levels and by subtracting a second percentage of the selected master black level from the individual red, green, and blue white levels selected by the individual red, green, and blue white level camera controls.

REFERENCES:
patent: 3808358 (1974-04-01), Schneider

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