Image processing method and device suitable for mold monitor

Abstract

The invention discloses an image processing method and device suitable for a mold monitor. The method comprises the steps that S1, a template image of an empty mold cavity and a comparison image of a full mold cavity are collected; s2, preprocessing the image; s3, extracting M ROI regions of the template image and M ROI regions corresponding to the contrast image, analyzing each ROI region of the template image by adopting a self-adaptive strategy, obtaining the number of optimal pixel intervals of each ROI region and a weighting coefficient corresponding to each pixel interval, and obtaining a difference standard threshold value of the corresponding ROI region; s4, acquiring a source image and preprocessing the source image; s5, analyzing the pixel distribution interval of each ROI of the source image, and counting the pixel distribution of each ROI; and step S6, for the source image ROI corresponding to each template image ROI, judging whether the current ROI is a defective area or not according to the difference value of the single ROI of the source image and a difference standard threshold value.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to an image processing method and device suitable for mold monitors. Background technique [0002] In the plastic manufacturing industry and metal die-casting industry, whether the injection molding machine can run stably and efficiently directly determines the production output value and product quality. Due to the complex situation in the workshop, although mold protection measures such as low-voltage protection and thimble alarms are adopted on the injection molding machine, it is still impossible to avoid the phenomenon of compression molding, which directly leads to the need for repair of the mold, which not only brings extra expenses such as huge repair costs, It also brings loss of man-hours and production, which may lead to untimely delivery and lost customers. Therefore, in order to avoid the compression molding phenomenon in the production process of the injectio...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the deficiencies in the above-mentioned prior art, the purpose of the present invention is to provide an image processing method and device suitable for mold monitors, to solve the influence of ambient light on the collected pictures, and to realize an adaptive, high-performance Mold monitor algorithm with accurate, real-time performance, low false alarm and missed detection rate

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