Method and apparatus for controlling contrast of images

Details Method and apparatus for controlling contrast of images Method and apparatus for controlling contrast of images

1998-05-22

2000-06-13

Hsia, Sherrie

Television

Image signal processing circuitry specific to television

Gray scale transformation

348678, 348687, H04N 557

Patent

active

060755741

ABSTRACT:
A method and apparatus for controlling contrast of images when displayed on a monitor begins when signals corresponding to an image and a contrast feedback signal are received. The signals are mixed with the contrast feedback signal to produce image output signals. The contrast feedback signal is, in turn, determined based on the contrast level of the image output signals. As such, a closed loop feedback circuit is provided to control the contrast levels of the image output signals.

REFERENCES:
patent: 5245425 (1993-09-01), Klatt

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