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Definition of visual inspection of food packaging

Time:

2022-08-04 16:00:22.868


Food packaging visual inspection is an important part of food as a commodity, which can protect food from external factors during the circulation process and maintain food hygiene and quality. Good food packaging can also bring good sensory experience to consumers, stimulate consumers' desire to buy, and win greater market competitiveness for enterprises.

The purpose of visual inspection of food packaging is to control packaging quality and prevent food with compromised quality from entering the market. At present, most food inspection companies still use manual monitoring for inspection, but this method has problems such as high labor intensity, low inspection accuracy, and non-standard management, and the inspection results fail to meet expectations. Therefore, some large-scale food enterprises have begun to introduce automatic detection equipment to implement real-time online detection of food packaging, which can repeat large-scale visual inspection of food packaging, greatly improving the accuracy and standardization. Visual registration systems also have applications.

Image processing is the core part of the food packaging visual inspection system, and its processing process can be divided into several parts according to the detection accuracy and equipment fineness. One part is the primary processing operation, that is, the image preprocessing process, including reducing image noise and improving image contrast and sharpness. Due to environmental factors, the camera device has a certain interference influence on image judgment. In order to minimize this effect, the acquired images need to be preprocessed, the easily overlooked details in the images are displayed through image enhancement techniques, and the features of the images are extracted to facilitate subsequent processing.

One part is the intermediate processing operation, that is, the features extracted from the image are input into the image processing system for image segmentation, and the image is divided into the target part and the other parts. Image segmentation is a difficult and important step in the whole image processing process. If the design algorithm in the software is unstable or immature, it will easily lead to inaccurate segmentation results and affect subsequent recognition work.

Another part is the high-level processing operation, that is, after identifying the overall eigenvalues ​​of the image, the processing work such as the correlation function algorithm is performed. Mura inspection and blister machine visual inspection also need attention.

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Definition of visual inspection of food packaging