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Verification code image generating method and device and verification method and device

A verification code picture and verification code technology, which is applied in the field of verification code picture generation, can solve the problems of high recognition rate and reduce the success rate of machine recognition, so as to improve network security, reduce the success rate of machine recognition, and reduce cracked effect of risk

Active Publication Date: 2014-07-02
BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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  • Summary
  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

In order to reduce the success rate of machine recognition, the verification code can be blurred, distorted, and noise can be added to the background. However, due to the increasingly strong automatic recognition ability of machines, there is still a high recognition rate

Method used

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  • Verification code image generating method and device and verification method and device
  • Verification code image generating method and device and verification method and device
  • Verification code image generating method and device and verification method and device

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Embodiment Construction

[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all changes, modifications and equivalents coming within the spirit and scope of the appended claims.

[0034] figure 1 It is a schematic flowchart of a method for generating a verification code image proposed by an embodiment of the present invention, the method includes:

[0035] S11: Generate a texture image.

[0036] Wherein, the texture picture may be a color picture or a grayscale picture. In the embodiment of the present invention, the texture picture is a grayscal...

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Abstract

The invention provides a verification code image generating method and device and a verification method and device. The verification code image generating method and device and the verification method and device aim to lower the success rate of automatic identification of a machine. The verification code image generating method comprises the steps of generating a texture image, determining the position of a verification code, and modifying the pixel value of the texture image at the position of the verification code to obtain a verification code image. The verification code image generating method has the advantages that the success rate of automatic identification of a machine can be lowered, the risk that the verification code is cracked is lowered, and the network security is improved.

Description

technical field [0001] The invention relates to the technical field of network security, in particular to a method and device for generating a verification code picture, and a verification method and device. Background technique [0002] In order to prevent certain users from using machines to automatically perform computer operations such as login, posting information, and downloading, many websites require users to enter verification codes when users perform related computer operations. The verification code is usually displayed in the form of a picture, and the user inputs the characters shown in the picture. [0003] With the development of technology, the machine can automatically complete the recognition of the verification code through software. The automatic recognition of the machine mainly relies on the continuous verification code on the image, and at the same time requires a large contrast between the verification code itself and the background. In order to redu...

Claims

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Application Information

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IPC IPC(8): G06F21/36
CPCG06F21/36G06F2221/2133
Inventor 丁二锐王云吉
Owner BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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