Apparatus and method for adjusting white balance of a video came

Details Apparatus and method for adjusting white balance of a video came Apparatus and method for adjusting white balance of a video came

1992-07-27

1994-06-28

Groody, James J.

Television

Camera, system and detail

Combined image signal generator and general image signal...

348655, 348227, 348224, H04N 973

Patent

active

053251857

ABSTRACT:
A white balance adjustment circuit in which red, green and blue video signals representative of a video image are passed through red, green and blue amplifiers. A first detector detects the levels of the red, green and blue video signals and a second detector detects the illuminance level of the video image. A controller controls the relative gains of the red, green and blue amplifiers in accordance with the first and second detector.

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"Auto White Balance", Part V, Camcorder '89, JEI, Dempa Publ., Inc. pp. 50-51, Tokyo, Japan.

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