System for automatic correction of the color balance between the

Facsimile and static presentation processing – Static presentation processing – Attribute control

Patent

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H04N 9535

Patent

active

040358356

ABSTRACT:
A system for correcting color balance of a color television picture to remove tinges of color caused by unbalance. Control signals for color correction are derived and stored from data available in those periods when luminosity is below a lower limit of about 7% or above an upper limit of about 95% and when chroma-saturation is below a prespecified level, for example 20%.

REFERENCES:
patent: 3737561 (1973-06-01), Boer
patent: 3786177 (1974-01-01), Bazin

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