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A cutting method and device for a serial number

A cutting method and serial number technology, which are applied in character and pattern recognition, instruments, calculations, etc., can solve the problems of slow calculation speed, complex operation, and misjudgment of stains as the outline of serial number, so as to improve the accuracy, simple operation, Calculating fast effects

Active Publication Date: 2019-06-07
SHENZHEN YIHUA COMP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the contour detection algorithm needs to traverse the contours of the serial numbers in the entire serial number area, the calculation is complex and the calculation speed is slow, and when there are stains in the serial number area, it is easy to misjudge the stains as the outline of the serial number, resulting in the wrong location of the outline of the serial number position, reducing the accuracy of serial number cutting

Method used

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  • A cutting method and device for a serial number
  • A cutting method and device for a serial number
  • A cutting method and device for a serial number

Examples

Experimental program
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Embodiment 1

[0034] figure 1 It shows the implementation flow of the serial number cutting method provided by Embodiment 1 of the present invention, and the implementation flow is described in detail as follows:

[0035] In step S101, the serial number area of ​​the banknote is obtained;

[0036] In the embodiment of the present invention, the serial number area of ​​the banknote is intercepted in the grayscale image of the banknote with a vertical direction of 150DPI and a horizontal direction of 200DPI, wherein the vertical 150DPI and horizontal direction of 200DPI refer to a resolution of 150*200DPI, that is, the resolution 150*200 pixels per inch. The size of the serial number area intercepted from the grayscale image of the banknote may be 60*270, that is, 60 pixels in the vertical direction and 270 pixels in the horizontal direction. Such as figure 2 It is the area of ​​the 2005 edition of 100 RMB.

[0037] In step S102, binarize the serial number area of ​​the banknote to obtai...

Embodiment 2

[0098] Figure 9 It shows a schematic diagram of the composition of the serial number cutting device provided by the second embodiment of the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are as follows:

[0099] An acquisition module 91, configured to acquire the serial number area of ​​banknotes;

[0100] The binarization module 92 is configured to perform binarization processing on the serial number area of ​​the banknote, so as to obtain a binarized image of the serial number area of ​​the banknote;

[0101] Further, the binarization module 92 includes:

[0102] Get submodule, stretch submodule, accumulate submodule and set submodule;

[0103] The obtaining sub-module is used to obtain the grayscale histogram of the serial number area of ​​the banknote, and count the total number of pixels in the serial number area of ​​the banknote;

[0104] The stretching submodule is...

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Abstract

The invention belongs to the technical field of image cutting and provides a method and device for cutting serial numbers. The method includes: obtaining the serial number area of ​​the banknote; performing binarization processing on the serial number area of ​​the banknote to obtain a binary image of the serial number area of ​​the banknote; scanning the binarized image according to a preset window image, to obtain the line cutting position of the serial number in the binarized image; cut the binarized image according to the line cutting position, so as to obtain the line cutting image of the binarized image; cut according to the line The image and the preset serial number column cutting template determine the column cutting position of the serial number in the row cutting image; cut out the serial number from the row cutting image according to the column cutting position. The invention can improve the cutting speed and accuracy of serial numbers.

Description

technical field [0001] The invention belongs to the technical field of image cutting, and in particular relates to a method and device for cutting serial numbers. Background technique [0002] The serial number is a symbol used to count the number of banknotes printed and to mark the uniqueness of banknotes. The identification of the serial number is of great significance to the market circulation of banknotes. In the recognition of the serial number, the cutting of the serial number is one of the very important steps. [0003] Currently, contour detection algorithms are usually used to cut serial numbers. However, the contour detection algorithm needs to traverse the contours of the serial numbers in the entire serial number area, the calculation is complex and the calculation speed is slow, and when there are stains in the serial number area, it is easy to misjudge the stains as the outline of the serial number, resulting in the wrong location of the outline of the serial...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/46
CPCG06V10/44
Inventor 傅博扬
Owner SHENZHEN YIHUA COMP
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