Image verification code generation method and image verification code generation system

Abstract

The invention discloses a method for generating a picture verification code and a system for generating a picture verification code. The method includes: calculating the color distribution and brightness distribution of the natural background image, and determining the text color and text brightness for the foreground text respectively according to the calculated color distribution and brightness distribution; embedding the foreground text according to the determined text color and text brightness into the natural background image. After the application of the present invention, the generated picture verification code can bring better visual experience to users and is difficult to decipher.

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. ...

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