Verification code identification method and device for confused characters and storage medium

Abstract

The invention relates to a verification code identification method and device for confused characters and a storage medium. The method comprises the following steps of downloading a font file of a target Chinese character, extracting a matrix and code word corresponding relation table of the confused Chinese character from the font file according to the target Chinese character to be identified, the code word corresponding relation table indicating a corresponding relation between the confused Chinese character and the target Chinese character, and each confused Chinese character correspondingto one target Chinese character; rendering the matrix of the confused Chinese character to obtain a rendered picture; identifying the rendered picture by using an optical character identification method to obtain the confused Chinese character; and identifying a target Chinese character corresponding to the confused Chinese character by using the code word corresponding relation table. The use safety of the verification code can be ensured, and the identification efficiency and accuracy of the verification code can be effectively improved.

Description

technical field [0001] The invention relates to the field of verification code identification, in particular to a verification code identification method, device and storage medium for confused characters. Background technique [0002] The existing verification code technology usually uses similarity matching to identify after dividing a single character. This identification method requires a lot of sample sets as the basis, and the recognition efficiency will also change with the sample size, and the choice of matching algorithm There is also diversity, which increases the complexity of the cracking scheme. If the complexity of cracking is reduced, the security of the verification code will not be guaranteed. In addition, the existing verification code recognition usually also adopts OCR technology, but using OCR technology alone for recognition also has a large error. [0003] To sum up, the existing verification code recognition technology has defects such as complex rec...

AI Technical Summary

Problems solved by technology

[0002] Existing verification code technology usually uses similarity matching to identify a single character after segmentation. This identification method requires a lot of sample sets as the basis, and the recognition efficiency will also change with the sample size, and the selection of matching algorithm There is also diversity, which increases the complexity of the cracking scheme. If the complexity of cracking is reduced, the security of the verification code will not be guaranteed.

In addition, the existing verification code recognition usually uses OCR technology, but using OCR technology alone for recognition will also have large errors

[0003] In summary, the existing verification code recognition technology has defects such as complex recognition process, low recognition accuracy, and poor security.

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