Automatic white balance control system for a color video camera

Details Automatic white balance control system for a color video camera Automatic white balance control system for a color video camera

1997-03-31

1999-11-30

Ho, Tuan

Television

Camera, system and detail

Combined image signal generator and general image signal...

348225, 348655, H04N 973

Patent

active

059951427

ABSTRACT:
An imaging device includes an imaging device for converting an image into a plurality of color signals each having a signal level; a white balance amplifier for adjusting the signal level of at least one color signal to produce a plurality of amplified color signals; a calibration device for calibrating the white balance amplifier and for producing at least one calibration parameter; a detecting device for detecting the amplified color signals; a calculation device for calculating at least one white balance amplification adjustment as a function of the plurality of amplified color signals; a comparing device for comparing at least one white balance amplification adjustment with at least one calibration parameter; and an automatic adjustment device for automatically adjusting the white balance amplifier to amplify the signal level of at least one of the plurality of color signals if at least one white balance amplification adjustment is consistent with at least one calibration parameter.

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