| 摘要 |
PURPOSE:To modify a photograph without inferiority by comparing with an air brush by the actual labor of a human being in a high speed response by weighting the respective picture elements of optional picture data according to a brush pattern determined by an optional function (for instance, Gauss function). CONSTITUTION:A central processing unit CPU1 forms the brush pattern 22 on a main memory device MS2 by the use of a previously applied weighting function. At this time, the size R of the brush pattern is set to a correction area. Subsequently, based on the instruction from the central processing unit CPU1, an arithmetic unit 3 between the picture elements performs the operation between the picture elements between the data of the respective picture elements of an area corresponding to the brush pattern in cost picture data 21 stored on the main memory device MS2 and the corresponding data of the brush pattern 22. When a desired picture cannot be obtained by the operation, an unnecessary picture element is masked by the use of a mask arithmetic function provided in the arithmetic unit 3 between picture elements, thereby a finer modification can be performed.
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