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

A banknote identification and banknote technology, applied in the field of financial equipment, can solve problems such as low accuracy

Active Publication Date: 2019-09-20
SHENZHEN YIHUA COMP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 black watermarks to identify abnormal coins

Method used

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

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0070] Such as figure 1 As shown, it is a schematic flowchart of a banknote identification method provided by an embodiment of the present invention, and the method may include:

[0071] Step S101, collecting a color image of banknotes to be identified under the irradiation of a preset light source.

[0072] In this embodiment, the banknote to be identified is the fifth set of RMB with a denomination of 100 yuan.

[0073] The incident direction when the light source is irradiated forms an included angle with a preset angle with the plane where the banknote to be identified is located. The preset angle can be set according to the actual situation. Generally, it can be greater than 10 degrees and less than 80 degrees. angle range. Preferably, the preset angle can also be adjusted in real time according to actual conditions.

[0074] Preferably, as figure 2 As shown, step S101 may specifically include:

[0075] Step S1011, controlling the light source to emit red light, gre...

Embodiment 2

[0100] Such as image 3 As shown, it is a schematic flowchart of a banknote identification method provided by an embodiment of the present invention, and the method may include:

[0101] Step S301, collecting a color image of banknotes to be identified under the irradiation of a preset light source.

[0102] Step S302, extracting the first sub-image of the region where the black watermark is located in the color image.

[0103] Step S303, respectively extracting the red component, green component and blue component of each pixel of the first sub-image.

[0104] Step S304, respectively calculating average values ​​of the red component, the green component and the blue component of each of the pixel points.

[0105] Wherein, Step S301 to Step S304 are the same as Step S101 to Step S104 in Embodiment 1. For details, please refer to the description in Embodiment 1, which will not be repeated in this embodiment.

[0106] Step S305, judging whether the average value of the red co...

Embodiment 3

[0132] Such as Figure 4 As shown, it is a schematic block diagram of a banknote identification device provided by an embodiment of the present invention, and the device may include:

[0133] The first image acquisition module 401 is configured to acquire a color image of the banknote to be identified when it is irradiated by a preset light source, where the incident direction of the light source and the plane where the banknote to be identified are located form an included angle of a preset angle;

[0134] The first sub-image extraction module 402 is configured to extract the first sub-image of the region where the black watermark is located in the color image;

[0135] A color component extraction module 403, configured to extract the red component, green component and blue component of each pixel of the first sub-image respectively;

[0136] A color component mean calculation module 404, configured to calculate the mean values ​​of the red component, the green component an...

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Abstract

The present invention belongs to the field of financial machines, and in particular, to a banknote identification method, apparatus and terminal device, and a readable storage medium. The method includes steps of: acquiring a color image of a banknote to be identified that is illuminated by a tilted light source; extracting a first sub-image of an area where a black watermark is located in the color image; respectively extracting a red component, a green component, and a blue component f each pixel point in the first sub-image; respectively calculating an average value of the red component, the green component and the blue component of each pixel point; when the average value of the red and green components is higher and the average value of the blue components is lower, indicating that the black watermark is yellowish, that is, judging the paper currency to be recognized abnormal. Compared with the prior art, the technical scheme of the invention can greatly improve the accuracy of abnormal banknote identification by using the black watermark as the special optical properties of the black watermark are fully utilized.

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] Black watermark is the anti-counterfeiting technology commonly used in banknotes at present. Black watermark is due to the fact that the watermark image and text printing plate are simultaneously imprinted from both sides during the process of forming the watermark on the pulp, so that the pulp on the pressed part does not have obvious displacement in the horizontal direction. , and being squeezed in the vertical direction, the density of the pulp in this part beco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G07D7/20
Inventor 黄勃
Owner SHENZHEN YIHUA COMP