Banknote identification method, device, terminal equipment and readable storage medium

Abstract

The invention belongs to the field of financial equipment, and in particular relates to a banknote identification method, device, terminal equipment and readable storage medium. The method first collects the infrared transmission image of the banknote to be identified, and extracts the sub-image of the area where the glorious light-changing number is located from the infrared transmission image, and then calculates the background area (ie the first background area) and the sub-image of the entire infrared transmission image respectively. The average gray value of the background area of ​​the image (that is, the second background area), due to the exquisite printing process of genuine coins, can ensure that the average gray value of the two is basically at the same level, while the process of counterfeit coins is quite different from it. Therefore, there will be obvious deviations in the gray values ​​of the two, based on which the altered and abnormal coins can be effectively identified. Compared with the prior art, the technical solution of the present invention can greatly improve the accuracy of identifying such altered abnormal coins by making full use of the special optical properties of the altered abnormal coins.

Description

technical field [0001] The invention belongs to the field of financial equipment, and in particular relates to a banknote identification method, device, terminal equipment and readable storage medium. Background technique [0002] Banknote identification is one of the basic functions of various ATM machines. Its main principle is to use various marks on banknotes to judge the authenticity of banknotes, so as to prevent counterfeit currency from entering the market and affecting the normal financial order. [0003] Guangcai light change is an anti-counterfeiting technology commonly used in banknotes. For example, the number "100" in the middle of the 2015 edition of the 100 yuan bill changed from red and blue in the original version to gold, and with the change of viewing angle, the number "100" The color of the will alternate between gold and green, with a band of light visible scrolling up and down the numbers. [0004] Existing banknote identification technology generally...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a banknote identification method, device, terminal equipment, and readable storage medium to solve the problem of low accuracy in the prior art when using optically variable numbers to identify abnormal coins

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