05555022 is referenced by 26 patents and cites 23 patents.

Sixty-four regions are established on an image sensed picture from a video camera, where evaluating value r.sub.ij, b.sub.ij, and y.sub.ij is obtained by averaging color difference signals R-Y and B-Y and luminance signal Y obtained from an image sensing signal for over 1 field period for each region. When the apparatus determines that the difference in the evaluating values between two adjacent regions does not exceed a predetermined value, that is, when that continuing regions have the same color, the weighing amount of the color evaluating values of a corresponding region is adjusted to limit its effect upon the gain control signals used to adjust the gain of the color signal amplifiers. As a result, the effect of objects of the same color towards white balance adjustment is reduced.

Title
White balance adjusting apparatus for automatically adjusting white balance in response to color information signal obtained from image sensing device
Application Number
612831
Publication Number
5555022
Application Date
May 31, 1995
Publication Date
September 10, 1996
Inventor
Kenichi Kikuchi
Daito
JP
Toshinobu Haruki
Shijonawate
JP
Agent
Peter L Michaelson & Wallace Michaelson
Assignee
Sanyo Electric
JP
IPC
H04N 9/73
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