| 摘要 |
PURPOSE:To enlarge image data at high speed by providing a storage field clearing means, an affine transformation means, a scan line direction plotting means and an auxiliary scan line direction plotting means. CONSTITUTION:A picture processor equipped with the picture processing means 20 and a data field 30 is provided with the storage field clearing means 1, the affine transformation means 2, the scan line direction plotting means 3 and the auxiliary scan line direction means 4 for the picture processing means 20. At the time of enlarging image data integer times, affine transformation is executed by the amount of original data with a scale factor enlarging pixel data, and OR is plotted in a scan line direction by a necessary pixel amount in accordance with a scale factor enlarging an affine-transformed result. Furthermore, OR is plotted in an auxiliary scan line direction by the necessary pixel amount in accordance with a scale factor enlarging pixel data of a scan line. Thus, the number of affine transformation times can be reduced and image data can be enlargement-processed at high speed. |
