| 摘要 |
The present invention is an error picture image data correction apparatus that can correct the error picture image data and suppress the image quality deterioration when there are plural error data in the continuous plural pixels and the data around the error picture image data are high frequency signal data. The apparatus comprises a weighted mean value operation part 101, 102 and 103 for calculating weighted mean value of the 2 pixel data having true value, a channel switch circuit 104, an adder 105, 106 and 109, a selector 107 and 108, a clip circuit 110, a control circuit 113 and an output switch circuit 111. When the input signals of the weighted mean value operation part 101, 102 and 103 at time i is described as G(i), R(i) respectively, t represents time width, n>1, n>k>=0, n and k are integers, and error data are G(i), G(i-t), G(i-2t), . . . , G, (i-(n-1)t), the error data G(i-kt) is replaced with the error correction data calculated by following Equation or its approximate equation.
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