| 摘要 |
An image format conversion device that performs format conversion between image formats in an image format group comprising at least a first image format having a first horizontal dot number and a second image format having a second horizontal dot number smaller than the first horizontal dot number, has a changeover circuit that changes over the order of the horizontal filter and vertical filter in accordance with the type of input or output image format. If the input image data is of the first image format, the horizontal filter is provided on the upstream side and the vertical filter is provided on the downstream side. If the output image data is of the first image format, the vertical filter is provided on the upstream side and the horizontal filter is provided on the downstream side.
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