| 摘要 |
<p>An image processing circuit for eliminating noise from an image without lowering the actual resolution. The image contains input pixels, which include a processing subject pixel (P11) and proximal pixels (POO-P02, P10, P12, P20-P22) located proximal to the processing subject pixel. Each input pixel has a pixel value. The image processing circuit includes a spatial filter (11) for generating a filter value (F11) for the subject processing pixel based on the pixel values of the input pixels and first filter coefficients (K00-K22). A correction circuit (12, 13, 14, 15) compares the filter value with first and second limit values (Vhi, Vlow) and corrects the filter value based on the comparison to generate a corrected filter value (F11a) in a range between the first and second limit values. The image processing circuit eliminates noise from the image by correcting the pixel value of the processing subject pixel based on the corrected filter value.
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