Defect detection method and device based on digital printing, terminal and readable medium

• Main Authors: ZHANG MENG, WANG SHUANGQIAO, ZHANG FAN
• Format: Patent
• Language: Chinese; English
• Published: 21.01.2020
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

The embodiment of the invention discloses a defect detection method based on digital printing. The method comprises the following steps: acquiring a target image of a to-be-detected product; accordingto a preset extremum calculation algorithm, calculating an extremum sequence corresponding to the target image according to the gray value of each pixel point of the target image, the extremum sequence being used for representing gray features of the target image; and performing feature screening on the extreme value sequence according to preset defect features, and determining a target defect position, the features including at least one of a width feature, a height feature and/or an energy feature. Whether defects exist in digital printing products or not can be detected in time, so that aworker can repair the printing terminal in time when the defects exist, defective products in digital printing are reduced, and the yield and the production efficiency are improved. 本发明实施例公开了一种基于数码印刷的缺陷检测方法，所述方法包括：获取待检测产品的目标图像