Apparatus for automatic color balancing of color television sign

Details Apparatus for automatic color balancing of color television sign Apparatus for automatic color balancing of color television sign

1976-07-19

1977-12-20

Richardson, Robert L.

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 904

Patent

active

040645290

ABSTRACT:
A plurality of signal storage means are used to store, respectively, the peak signal value of the red, blue and green video signals of a color television camera for comparison against a predetermined signal level representing a desired combined signal condition, such as black. The peak values of the stored video signals are combined to ascertain the difference in peak signal amplitude between the red and green signals and the blue and green signals. Control signals developed from the difference signals adjust the respective red and blue channel signal levels so as to match the red and blue signal level to the green signal level to yield the desired combined signal condition.

REFERENCES:
patent: RE28774 (1976-04-01), Kabota et al.
patent: 3786177 (1974-01-01), Bazin

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