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Method and system for generating picture identifying code

A technology for image verification code and generation system, applied in the field of image verification code generation method and image verification code generation system, can solve problems such as visual discomfort, achieve good visual experience, enhance anti-cracking ability, and increase the effect of cracking difficulty

Active Publication Date: 2008-06-18
TENCENT TECH (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for humans, noise will bring visual discomfort, and artificial textures are easy to be deciphered due to their strong regularity

Method used

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  • Method and system for generating picture identifying code
  • Method and system for generating picture identifying code
  • Method and system for generating picture identifying code

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] In the embodiment of the present invention, the natural background image is used as the background pattern of the verification code, and the color of the foreground text is adaptively selected, so as to ensure that the foreground and the background can be distinguished to ensure the user's recognition, and because the foreground color is flexible and changeable , can also increase the difficulty of cracking. In addition, in the embodiment of the present invention, a method of randomly intercepting sub-images may also be used to generate a natural background image, thereby increasing the cost and cost of cracking by using a violent method.

[0023] Fig. 2 is an exemplary flowchart of a method for generating a picture verificatio...

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Abstract

The invention discloses a generation method for an image identifying code, and comprises that color distribution and brightness distribution of natural background images are calculated, by means of the calculated color and brightness distribution, word colors and word brightness of foreground words are respectively determined. Background words are embedded into the natural background image according the determined word colors and word brightness. The invention also discloses a generation system for the image identifying code, the generated image identifying code after using the invention can bring better visual experiences to users and is difficult to be decoded.

Description

technical field [0001] The present invention relates to the technical field of network application (Application), and more specifically, the present invention relates to a method for generating a picture verification code and a system for generating a picture verification code. Background technique [0002] With the increasing popularity of computers and computer networks, the Internet has penetrated into all areas of people's work, study and life. Network development brings various challenges while providing convenience. Some people with ulterior motives will use robot programs to improperly use a large number of free Internet resources, such as mass spam, etc., which will greatly reduce server performance. There are also people who use the program to continuously send out service request responses to carry out "saturation attacks" to achieve the purpose of paralyzing the service. Some people even try to use brute force cracking and other means to steal virtual property. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T11/60H04L9/32
Inventor 王建宇王亮
Owner TENCENT TECH (SHENZHEN) CO LTD
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