| Summary: | 碩士 === 逢甲大學 === 自動控制工程學系 === 103 === This study aims to inspect the common defects of mirror elements, including scratches, foreign material, and edge serration, which occur in the production of mirror elements, where a mirror surface was illuminated in different directions in the experiment. The image captured by CCD was used for image processing to highlight the defect position, enhance image contrast, and judge whether the defect exceeds the permissible range. The image contour was analyzed by edge detection, and combined with edge evaluating parameters to improve the quality of the coating edge. Use filtering and chain code to eliminate or filled small noise in the image. Analyzed the image and determine whether the mirror is defects. The experiment was repeatedly conducted, and the system misrecognition was less than 4%. The system stability was high, and could be combined with production lines for industrial automation in the future.
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