In this technology , we draw the welding seam in the picture first , strengthen the welding seam , draw and appear defect of welding seam and at last carry on the defect to grade according to the result of quantitative calculation to defect 該技術(shù)的實現(xiàn)是先提取圖像中的焊縫,再對焊縫進行增強,提取出焊縫中的缺陷,最后對提取出的缺陷進行定量計算,根據(jù)計算結(jié)果進行缺陷分級。