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White balance adjustment device for automatic adjustment of the white balance depending on the luminance information signal and color information signal from an image recording device
White balance adjustment device for automatic adjustment of the white balance depending on the luminance information signal and color information signal from an image recording device
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机译:白平衡调整装置,用于根据来自图像记录装置的亮度信息信号和颜色信息信号自动调整白平衡
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摘要
64 regions are set on an image sensed picture of a video camera, where evaluating values rij, bij and yij are 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 by each region. When determination is made that the difference in the evaluating values between two continuing regions do not exceed a predetermined value according to the obtained evaluating values, that is, when determination is made that continuing regions have the same color, the weighing amount of the color evaluating values of a corresponding region is reduced in producing gain control signals regarding the color difference signals. As a result, the effect of objects of the same color towards white balance adjustment is reduced.
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