| 摘要 |
PROBLEM TO BE SOLVED: To shorten a defeat detection and processing time in either a master method or a scroll method. SOLUTION: Image memories 65-68 are provide, every time when an image data input part 61 inputs image data from a signal processing and transmission part, an image change-over and control part 64 changes over the connection of a data bus and inputs the image data on the basis of an image synchronous signal outputted from the data input part 61, a positional displacement operation part 62 operates the amount of positional displacement on the basis of new positional displacement operation image data, a defect judgment part judges the defect of new detection image data, and the process is repeated. |
