Method and device for counterfeiting banknotes

Abstract

The embodiment of the invention discloses a method and device for counterfeit detection of a banknote. The method includes obtaining an infrared transmission graph of a banknote to be subjected to counterfeit detection; determining an area to be detected in the infrared transmission graph; extracting an image main structure of the area to be detected, thereby obtaining a main structure image of the area to be detected; calculating a gray scale co-occurrence matrix of the main structure image; and according to a relation between gray scale co-occurrence matrix features of the main structure image and the gray scale co-occurrence matrix features of a genuine note main structure image, determining a counterfeit detection result of the banknote to be subjected to counterfeit detection. According to the method for counterfeit detection of the banknote, the method of extracting the main structure of an image of the banknote to be subjected to counterfeit detection, calculating the gray scale co-occurrence matrix of the main structure image and utilizing the gray scale co-occurrence matrix features to perform counterfeit detection is adopted, the problem that a complex anti-counterfeiting pattern is difficult to detect is solved, anti-counterfeiting pattern features are obtained easily and rapidly, and a banknote counterfeit detection process is simplified.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of banknote inspection, and in particular to a method and device for authenticating banknotes. Background technique [0002] The spread of counterfeit money has a negative impact on economic development, and accurate and rapid identification of banknotes is of great significance to maintaining financial security and stability. With the advancement of science and technology, the technology of authenticating banknotes has been continuously improved, and the anti-counterfeiting methods used on banknotes have become more and more abundant. The use of special inks is one of the common technologies, and the use of inks with different characteristics is printed on banknotes. Different anti-counterfeiting effects, such as some magnetic inks, some color-changing inks, etc. [0003] For the detection of anti-counterfeiting patterns printed on banknotes with special inks, methods such as bina...

AI Technical Summary

Problems solved by technology

[0003] For the detection of anti-counterfeiting patterns printed on banknotes with special inks, methods such as binarization and averaging are often used in the prior art. When the patterns are complex, the detection results are often unsatisfactory, and too fine detection will increase the number of banknotes. Recognition time, thereby reducing the speed of banknote verification, and the detection is too rough to lose the meaning of counterfeiting

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