Paper currency value identification method and paper currency value identification device
A banknote and currency value technology, which is applied in the field of identification methods and devices for banknote currency value, can solve the problems of poor recognition reliability and affect the efficiency of banknote currency value identification, and achieve the effect of improving the recognition rate
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Embodiment 1
[0062] figure 1 It is a flow chart of a banknote value identification method provided by Embodiment 1 of the present invention. The method of this embodiment can be performed by a banknote value identification device, wherein the device can be implemented by software and / or hardware, and generally can be integrated into financial equipment such as automatic ticket vending machines or banknote counters. Such as figure 1 As shown, the banknote currency value identification method provided in this embodiment specifically includes the following steps:
[0063] Step 110, acquiring the grayscale images of the background area and feature area of the banknote to be tested.
[0064] Wherein, the banknote to be tested is preferably Iranian currency, and may also be other currencies (such as RMB or Indonesian rupiah) with obvious color difference areas on the surface of the banknote.
[0065] In the banknote identification process, the banknote grayscale image is the image detected ...
Embodiment 2
[0074] image 3 It is a flow chart of an Iranian currency value identification method provided by Embodiment 2 of the present invention. This embodiment is optimized on the basis of the foregoing embodiments. refer to image 3 , the embodiment of the present invention specifically includes the following steps:
[0075] Step 210, acquiring grayscale images of the background area and feature area of the banknote to be tested.
[0076] Step 220: Calculate the background gray value according to the gray image of the background area, and determine the feature pixel points in the feature area that are different from the background according to the background gray value.
[0077] Step 230: Calculate the difference between the gray value of the feature pixel in the feature area and the background gray value, and use the sum of all the differences as the feature attribute.
[0078] Specifically, in the process of identifying the Iranian currency value, if the gray average value o...
Embodiment 3
[0085] Figure 4 It is a flow chart of a method for identifying the currency value of Iranian currency provided by Embodiment 3 of the present invention. This embodiment is optimized on the basis of the foregoing embodiments. refer to Figure 4 , the embodiment of the present invention specifically includes the following steps:
[0086] Step 310, acquiring grayscale images of the background area and feature area of the banknote to be tested.
[0087] Step 320: Calculate the background gray value according to the gray image of the background area, and determine the characteristic pixel points in the feature area that are different from the background according to the background gray value.
[0088] Step 330, identifying the currency value of the banknote to be tested according to the feature attribute of the feature pixel.
[0089] Specifically, for the Iranian currency, through the above steps, it can be identified whether the currency value of the Iranian currency is 20...
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