Machine vision automatic detection method for large mold

The invention discloses a machine vision automatic detection method for a large mold, relates to the technical field of mold detection, and aims to solve the problems that an existing injection molding machine cannot detect and analyze a mold before injection molding, so that the injection molding machine still continues to work when the mold is damaged or has bad conditions, and especially for the large mold, the mold is very easy to damage, and the detection efficiency is high. In order to solve the problems that in the prior art, the service life and the product quality of a mold are seriously influenced, the invention provides the following scheme: the method comprises the following steps: (1) image acquisition: scanning the mold by utilizing visual inspection equipment to obtain a to-be-detected image: (2) image detection: detecting the pixel position of each detection point in the to-be-detected image by a processor; and (3) image analysis and processing: comparing the current pixel position of each det