A two-dimensional code anti-counterfeiting method based on letter image segmentation and complementary recognition

Abstract

A two-dimensional code anti-counterfeiting method based on letter image segmentation and complementary recognition is provided. The invention segments one or more alphabet images from a two-dimensional code image, Some of the alphabet images are printed on the merchandise, another portion of that alphabet image is printed on one or more sheets, the remainder of the segmented two-dimensional code image and the segmented one or more alphabet images can be merged complementarily to form a complete two-dimensional code image, Obviously, only when the segmented remainder and one or more segmented alphabet images are recombined to form a complete two-dimensional code image, can the correct two-dimensional code information be obtained through scanning, and the counterfeiting and infringement of labels, notes, securities, etc. can be effectively prevented through the above complementary recognition.

Description

Technical field: [0001] The invention relates to an anti-counterfeiting printing technology, in particular to a two-dimensional code anti-counterfeiting method for letter image segmentation and complementary recognition, which can be used for anti-counterfeiting of various printed products. Background technique: [0002] At present, the more common anti-counterfeiting methods are as follows: The first is laser anti-counterfeiting marks, which use laser recessive ink fluorescent ink printing technology to print product logos or special identification patterns into product anti-counterfeiting labels, and the same Similar products use the same label, because the anti-counterfeiting label is easier to forge, and the fake anti-counterfeiting label is used on the counterfeit product, causing confusion between the authenticity and the fake of the product, so it is difficult to effectively prevent counterfeiting. The second is the password anti-counterfeiting label. The method adopt...

AI Technical Summary

Problems solved by technology

[0002] At present, the more common anti-counterfeiting methods are as follows: The first is laser anti-counterfeiting marks, which use laser recessive ink fluorescent ink printing technology to print product logos or special identification patterns into product anti-counterfeiting labels, and the same Similar products use the same label, because the anti-counterfeiting label is easy to forge, and the fake anti-counterfeiting label is used on the counterfeit product, causing the product to be confused, so it is difficult to effectively prevent counterfeiting

The second is the password anti-counterfeiting label. The method adopted is to compile a set of numbers for each product, and the codes of each product are different. The numbers are printed on the labels and covered, and the numbers are stored Into the computer database that can be inquired by consumers. When consumers purchase products, they input the numbers on the logo into the computer database for comparison and identification through telephone or networked computers. The same is true, and the difference is false. Simple, easy to identify, not easy to forge, but in actual use, because the coded data is uniformly generated by the computer and printed on the label

[0003] In summary, the existing anti-counterfeiting methods have certain shortcomings, and thus cannot fundamentally prevent counterfeit products.

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