Graphical verification code recognition method and device, readable storage medium and terminal device

Abstract

The invention belongs to the technical field of computers, and particularly relates to a graphic verification code recognition method and device, a computer readable storage medium and a terminal device. The method comprises the steps of performing graying processing on a to-be-identified graphic verification code to obtain a first grayscale image of the graphic verification code; performing imageenhancement processing on the first grayscale image according to grayscale distribution characteristics in the first grayscale image to obtain a second grayscale image of the image verification code;performing binarization processing on the second grayscale image to obtain a binary image of the graphic verification code; positioning each character in the binary image, and respectively extractinga sub-image of an area where each character is located from the binary image; and using a preset machine learning model group to identify each sub-image to obtain an identification result of each character, so that the success rate of identifying various complex graphic verification codes is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of computers, and in particular relates to a pattern verification code recognition method, device, computer-readable storage medium and terminal equipment. Background technique [0002] With the rise of crawler technology, more and more businesses are beginning to rely on the data crawling capabilities of web crawlers, and out of consideration for security and traffic control, various websites have also enabled graphic verification code verification as a blocking network. A level of reptiles, with the rapid development of image recognition technology, the patterns of graphic verification codes are also gradually renovated and improved, from the earliest characters are correct, the background is clean, and the background color changes later, adding various noises, and font styles are constantly changing, thus becoming These complex graphic captchas are becoming more and more complex, and the success rate of i...

AI Technical Summary

Problems solved by technology

[0003] In view of this, an embodiment of the present invention provides a method, device, computer-readable storage medium, and terminal device for identifying a graphic verification code, so as to solve the problem of extremely low success rate of identifying complex graphic verification codes in the prior art

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