| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of correcting color tone which independently corrects the saturation and hues within the limits of a specified hue range, and within a specified saturation degree range. SOLUTION: Using color difference signals (R-Y), (B-Y) outputted from a matrix operational unit 9, a saturation decider 11 detects the saturation level of a picture, turns on or off on-off switches 12a, 12b according to whether or not the saturation level thereof is within the specified saturation range, thereby switching to correct or not correct the color tone, respectively. Thus, the saturation and the hue are correctable independently within the limits of a specified hue range and a specified saturation range. COPYRIGHT: (C)2007,JPO&INPIT
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