Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1991-04-24
1993-06-29
Coles, Sr., Edward L.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 44, 358227, H04N 973
Patent
active
052239217
ABSTRACT:
Sixty four regions are established on an image-sensed picture from a video camera, wherein evaluating values r.sub.ij, b.sub.ij and y.sub.ij are obtained by averaging color difference signals R-Y, B-Y and a luminance signal Y obtained from a video signal, respectively, over one field period for each region. When producing a gain control signal for each color difference signal, fuzzy inference is made on the basis of these evaluating values and a weighting amount for each color evaluating value for each region is determined. As a result of the weighting, the contribution degree of each color difference signal in a region, not including a light source color temperature axis on a color plane, is reduced to achieve good white balance adjustment.
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Haruki Toshinobu
Kenichi Kikuchi
Coles Sr. Edward L.
Michaelson Peter L.
Moser, Jr. Raymond R.
Sanyo Electric Co,. Ltd.
Vu Kim Yen
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