| 摘要 |
<p>A programmable spatial filter system 30 for a video signal includes a position extraction block 33 arranged to extract a position in an image of a picture element to be spatially filtered. A programmable mask generator 34 receives output from the position extraction block and generates a selectable filter mask dependent on the extracted position. A programmable spatial filter 31 filters the image using the selected filter mask from the programmable mask generator 34.
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