Banknote fouling identification method and device, storage medium and financial equipment
An identification method and technology for banknotes, which are applied in the fields of devices, storage media and financial equipment, and banknote contamination identification methods to achieve the effects of improving accuracy, detecting a large area of contamination, and preventing device interference.
Active Publication Date: 2020-03-24
SHENZHEN YIHUA COMP +2
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Problems solved by technology
[0004] The invention provides a banknote defacement identification method, device, storage medium and financial equipment to solve the technical problem that the defacement can only be detected and identified in a specific area
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[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.
[0027] Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe the steps as sequential processing, many of the steps may be performed in parallel, concurrently, or simultaneously. Additionally, the order of steps may be rearranged. The process may be terminated when its operations are complete, but may also have additional steps not included in the figure. The ...
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The embodiment of the invention relates to the field of banknote identification, in particular to a banknote fouling identification method and device, a storage medium and financial equipment. The banknote fouling identification method comprises the following steps: S1, dividing an image of a banknote to be detected into grids, and determining the brightness of each grid; s2, calculating a difference value between the brightness of each grid of the banknote to be detected and a preset first average brightness, and obtaining a brightness fluctuation value of each grid; s3, comparing the brightness fluctuation value with a preset brightness fluctuation threshold value; and S4, if the brightness fluctuation value is greater than a preset brightness fluctuation threshold, determining that thebanknote to be detected is a stained banknote. The banknote fouling identification method and device, the storage medium and the financial equipment have the advantage that the fouling identificationof the banknote area is not limited.
Description
technical field [0001] The invention relates to the field of banknote identification, in particular to a banknote defacement identification method, device, storage medium and financial equipment. Background technique [0002] In areas with few banknote patterns or relatively simple patterns, it is easy to be artificially written or stained, and the handwriting or oil stains will be more conspicuous. When banknotes are defaced, it is easy to fail the banknote verification. The existing method or device for identifying defacement of banknotes can only detect and identify defacement in a specific area. When the fouling is not within a specific area, the fouling cannot be detected. [0003] Therefore, how to provide a method or device capable of identifying whether all positions of banknotes are stained has become a demand in the prior art. Contents of the invention [0004] The invention provides a banknote defacement identification method, device, storage medium and finan...
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IPC IPC(8): G07D7/187
CPCG07D7/187
Inventor 杜杨君
Owner SHENZHEN YIHUA COMP