| 摘要 |
PURPOSE:To easily and quickly eliminate the peripheral noise of a pattern by dividing image data of the pattern displayed with straight lines into two areas and collectively clearing image data in the area where the pattern is not included. CONSTITUTION:When a straight line 10 is designated by a keyboard 3, the display area on a display device 2 is vertically divided into an area 11, where a pattern 9 is not included, and the other area 12 through an area division processing means 6, an image data memory 4, an image display processing means 5, etc. The display on the device 2 is seen to discriminate whether the area 11 includes the noise or not, and a straight line is designated repeatedly to determine the area 11. When noise elimination is designated by the keyboard 3, the noise in the area 11 is collectively cleared by a noise eliminating means 7, and it is unnecessary to designate and clear the noise at each point, and the peripheral noise of the pattern is easily and quickly eliminated.
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