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 of patchwork coins
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Embodiment 1
[0068] Such as figure 1 What is shown is a schematic flowchart of a banknote recognition method provided by an embodiment of the present invention, and the method may include:
[0069] Step S101: Collect an infrared transmission image of the banknote to be identified.
[0070] In this embodiment, the banknote to be identified is the fifth set of Renminbi with a denomination of 100 yuan.
[0071] Step S102, extracting the first sub-image of the first characteristic area and the second sub-image of the second characteristic area in the infrared transmission image.
[0072] The first characteristic area is the area where the number representing the denomination is located at the upper left of the back of the banknote to be recognized, and the second characteristic area is the area where the number representing the denomination is located at the upper right of the back of the banknote to be recognized.
[0073] Preferably, as figure 2 As shown, step S102 may specifically include:
[0074] S...
Embodiment 2
[0102] Such as image 3 What is shown is a schematic flowchart of a banknote recognition method provided by an embodiment of the present invention, and the method may include:
[0103] Step S301: Collect an infrared transmission image of the banknote to be identified.
[0104] Step S302, extracting the first sub-image of the first characteristic area and the second sub-image of the second characteristic area in the infrared transmission image.
[0105] Step S303: Calculate the first average gray value of the first sub-image and the second average gray value of the second sub-image respectively.
[0106] Among them, steps S301 to S303 are the same as steps S101 to S103 in the first embodiment. For details, please refer to the description in the first embodiment, which will not be repeated in this embodiment.
[0107] Step S304: It is determined whether the magnitude of deviation between the first average gray value and the second average gray value is greater than a preset first threshol...
Embodiment 3
[0123] Such as Figure 4 What is shown is a schematic block diagram of a banknote recognition device provided by an embodiment of the present invention, and the device may include:
[0124] The image collection module 401 is used to collect infrared transmission images of the banknotes to be identified;
[0125] The sub-image extraction module 402 is used to extract the first sub-image of the first characteristic area and the second sub-image of the second characteristic area in the infrared transmission image, where the first characteristic area is the upper left of the back of the banknote to be recognized Square represents the area where the denomination numbers are located, and the second characteristic area is the area where the denomination numbers are located at the upper right of the back of the banknote to be identified;
[0126] The first calculation module 403 is configured to calculate the first average gray value of the first sub-image and the second average gray value o...
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