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This research deals with the high precision flat surface finishing method by automati じ scraping machine ． By Whitwo曲 method ， high ・ precision surface plates were fmished without using a reference su1「 face automatically ， and it was certainly the work process from the pattem scraping ( rough scraping ) up to fine scraping ． Scraper d 廿ection was changed every time ， because to make scraping pattem on the sur 飴 ce ， The method ofdividing some image matriX that is one ofimage processingtechnique was able to take high precieus image． Finally ， sur 血 ce natness and scraped marks per inch was measured to estimate the scraping perfbrmance of automatic scraping machine ， Key Mords： Scrq 帥 9， 0 '0 η泌 c scraping boare ゴ ， eA ア er '3 丸 111 1、 緒 言

No abstract