| 摘要 |
The invention relates to an image conversion unit ( 200 ) for converting an input image with a first resolution into an output image with a second resolution being different from the first resolution. The image conversion unit ( 200 ) comprises: a coefficient-determining means ( 106 ) for determining a first filter coefficient on basis of pixel values of a group of pixels of the first image; combining means ( 204 - 210 ) for combining the first filter coefficient with a predetermined filter coefficient into a final filter coefficient; and an adaptive filtering means ( 104 ) for computing a second pixel value of the second image on basis of a first one of the pixel values of the first image and the final filter coefficient.
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