captchaSteroid: Generate distorted CAPTCHA validation images

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Version License PHP version Categories
captchasteroid 0.1Custom (specified...4.0.6Graphics, Validation
Description Author

This class can be used to generate CAPTCHA validation images with distorted text.

It can render the validation text in an image. After the text is rendered, a new image is generated applying wave distortion effects to the original image, in order to make the text harder to guess by robots.

The image size, text font, background color, and background image are configurable parameters.

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captchaSteroid - Captcha distortion

This class is used to create Google style captcha images.
Note that this project does not include any security utilities, but only captcha image generation and/or distortion.

Since image transformation takes a lot of processor time, i would recommend that you use cacheing of images to improove performance.

Dragan Bosnjak
  • final
  Files folder image Files  
File Role Description
Files folder imageimg (2 files)
Plain text file class.captchaSteroid.php Class Main file
Plain text file example_01.php Example Example file
Plain text file example_02.php Example Example file
Plain text file example_03.php Example Example file
Plain text file example_04.php Example Example file
Plain text file license.txt Lic. License file
Plain text file readme.txt Doc. Readme file

  Files folder image Files  /  img  
File Role Description
  Image file 3rd_party_image.jpg Data Image used in examples
  Image file bg_sample.jpg Data Image used in examples

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