| 摘要 |
PURPOSE:To easily perform an area designation, by providing an area discriminating means which discriminates a prescribed area on an original as the object area of a picture process based on a mark identified by a mark identifying means, and a picture processing means which performs a desired picture process for an area discriminated by the above means. CONSTITUTION:A picture signal 18 binary-coded by the first binarization circuit 16 is supplied to a data compression circuit 37, and at the data compression circuit 37, the picture signal 18 is thinned out both in a main scan and a subscan directions. It is because that the recognition of the rough shapes of a start mark 32S and an end mark 32E is enough, and therefore, the capacity of a memory can be reduced, and the constitution of a mark area detecting part 19 can be simplified. At the data compression circuit 37, in the picture signal 18 inputted bit by bit, one bit per two bits is thinned out in the main scan and the subscan directions while making the logical OR of two bits. The reason for the making the logical OR is to utilize the bit of information of the picture signal to be thinned out, and to suppress deterioration in the recognizing efficiency of a processing area at the minimum level. In this way, the area of the processing area at the minimum level. In this way, the area of the picture process can be specified regardless of the color of the mark.
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