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An anti-counterfeiting method based on edge roughness of two-dimensional code

An edge roughness, two-dimensional code technology, applied in the field of image processing, can solve the problems of inconvenient operation and low reliability, and achieve the effect of simple and easy identification method and high authenticity identification ability.

Active Publication Date: 2021-08-31
武汉保诚信科技有限公司
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Problems solved by technology

[0003] For the existing anti-counterfeiting technology, commonly used methods include visual method, hand touch method, texture method, perspective method and instrument detection method, but these methods are either not reliable or inconvenient to operate

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  • An anti-counterfeiting method based on edge roughness of two-dimensional code
  • An anti-counterfeiting method based on edge roughness of two-dimensional code
  • An anti-counterfeiting method based on edge roughness of two-dimensional code

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Embodiment Construction

[0032] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0033] Such as figure 1 As shown, a kind of anti-counterfeiting method based on pattern edge roughness provided by the present invention comprises the following steps:

[0034] Step 1: Obtain the QR code pattern on the item package and the QR code pattern on the item package to be detected;

[0035] Step 2: Extracting the edge roughness features of the above two two-dimensional code patterns;

[0036] Step 2.1: Position the QR code pattern in the image and correct it;

[0037] see figure 2 , Two-dimensional code positioning Use the positioning points of the three corners of the QT two-dimensional code to smooth filter ...

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Abstract

The invention discloses an anti-counterfeiting method based on the edge roughness of a two-dimensional code. The method comprises the following steps: 1) acquiring a sample image of the two-dimensional code; 2) extracting the edge roughness feature of the sample image of the two-dimensional code; 3) Obtain the anti-counterfeiting two-dimensional code image to be tested; 4) extract the edge roughness feature of the two-dimensional code image to be tested; The Euclidean distance between the edge roughness feature and the edge roughness feature of the two-dimensional code to be tested can be used to obtain the similarity between authenticity and falsehood through the size of the distance value. The invention utilizes the unique roughness characteristic of the edge of the pattern, and realizes authenticity identification of articles through feature comparison. The identification method of the present invention is simple and easy to implement, does not need to make anti-counterfeit marks specially, and has high authenticity identification ability.

Description

technical field [0001] The invention relates to image processing technology, in particular to an anti-counterfeiting method based on the edge roughness of a two-dimensional code. Background technique [0002] Images carry the expression and transmission of electronic information, and are one of the interfaces and bridges between digital information and social life. With the rapid development of printing technology, the use of printers is becoming more and more popular, and there are more and more counterfeiting and counterfeiting of images, such as packaging forgery, label forgery, certificate forgery or illegal copying (piracy) of protected documents, etc. These illegal and criminal activities have a bad impact on the economy, security and other fields. Therefore, anti-counterfeiting technology is very important, and it is urgent to ensure the safety and authenticity of items. Whether it is to fight against counterfeit and shoddy products, or to verify the authenticity of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K7/14G06Q30/00
CPCG06K7/1417G06K7/1443G06K7/1452G06Q30/0185
Inventor 郑宏鄢煜尘宋育锋
Owner 武汉保诚信科技有限公司
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