Apparatus for compensating for luminance level of video signal

Details Apparatus for compensating for luminance level of video signal Apparatus for compensating for luminance level of video signal

2005-09-27

2005-09-27

Brier, Jeffery (Department: 2672)

Computer graphics processing and selective visual display system

Computer graphics processing

Graphic manipulation

C345S628000, C345S629000, C348S671000, C348S672000

Reexamination Certificate

active

06950114

ABSTRACT:
A luminance level compensating apparatus passes only the luminance signal of a pixel in a first detection range in the vertical direction of an image indicated by an input luminance signal, detects and stores a first frequency for each luminance level of the passed luminance signal for each predetermined period, passes only a luminance signal of a pixel in a second detection range including the first detection range in the vertical direction of the image, detects and stores a second frequency for each luminance level of the passed luminance signal for each predetermined period; generates a mixed frequency data based on the first and second frequencies stored.

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