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Oil stain detection method and oil stain detection system for bill images

A detection method and technology for bills, applied in the field of image processing, can solve the problems of low detection efficiency, unfavorable batch processing of bills, unavoidable accidental errors in human visual inspection, etc., to achieve the effect of improving efficiency, reducing time and errors

Inactive Publication Date: 2015-09-30
AUTOMATED TOUCHSTONE MACHINES
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Problems solved by technology

[0003] At present, the detection of whether the bills are defaced is generally done by the salesperson through visual inspection. This detection method has low detection efficiency and is not conducive to the batch processing of bills, and the accidental errors caused by human visual inspection are unavoidable.

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  • Oil stain detection method and oil stain detection system for bill images
  • Oil stain detection method and oil stain detection system for bill images
  • Oil stain detection method and oil stain detection system for bill images

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Embodiment Construction

[0042] refer to figure 1 , the present invention a kind of bill image oil pollution detection method, comprises the following steps:

[0043] A. Carry out color scanning and infrared scanning on the bill respectively to obtain the color image of the bill and the infrared grayscale image of the bill;

[0044] B. Perform grayscale conversion on the color image of the bill, and then obtain the grayscale image of the bill;

[0045] C. Carry out threshold segmentation processing on the bill grayscale image and the bill infrared grayscale image to obtain the bill oil stain binary image;

[0046] D. Carry out connected domain marking on the oil stain binary image of the bill, and then perform oil pollution detection and judgment according to the area of ​​the connected domain.

[0047] refer to figure 2 , further as a preferred embodiment, the step D includes:

[0048] D1. Carrying out corrosion processing on the oil stain binary image of the bill to obtain the oil stain binary ...

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Abstract

The invention discloses an oil stain detection method and an oil stain detection system for bill images. According to the method, acquisition, gray conversion, binarization processing and connected component labeling are performed on the bills in sequence, and stain conditions of the bills are detected further according to the area of a connected component; the system comprises an image acquisition module, a gray image conversion module, a binarization processing module and an oil stain detection module. According to the oil stain detection method and the oil stain detection system disclosed by the invention, manual operation is not needed; the phenomenon that the bill invalidity is caused by the fact that the bills are stained in the automatic processing procedure of batch bills can be effectively solved; the time of manually collating the bills and faults are greatly shortened, and the processing efficiency of the batch bills is promoted. The oil stain detection method and an oil stain detection system disclosed by the invention can be widely applied to bill detection.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a method and system for detecting oil stains on bill images. Background technique [0002] With the increase of banking financial business, the types and quantities of bills have increased dramatically, and the batch automatic processing technology of bills has emerged as the times require, and the automatic detection of whether the bills are filled in standard and whether the bills are defaced is the key to realizing the intelligent processing technology of batch bills. [0003] At present, the detection of whether the bills are defaced is generally done by the salesperson through visual inspection. This detection method has low detection efficiency and is not conducive to the batch processing of bills, and the accidental errors caused by human visual inspection are unavoidable. . [0004] In order to reduce the time and occasional mistakes of manually collecting bills and impro...

Claims

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Application Information

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IPC IPC(8): G06T7/00
CPCG06T7/0002G06T7/11
Inventor 王佳易堃冯少川师改梅
Owner AUTOMATED TOUCHSTONE MACHINES
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