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Tag Archives: CAPTCHA
Make CAPTCHA images with overlapping characters in C#
The following MakeCaptchaImage2 method creates a Bitmap containing a CAPTCHA image. private Random Rand = new Random(); // Draw the words with letters overlapping each other. private Bitmap MakeCaptchaImage2(string txt, int wid, int hgt, Font the_font, Brush the_brush) { Bitmap … Continue reading
Make CAPTCHA images in C#
CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) images are those distorted pictures of words that some Web sites make you enter to prove you are a human and not an automated process. The idea is … Continue reading
Posted in drawing, graphics, image processing, internet, transformations, web
Tagged C#, C# programming, CAPTCHA, CAPTCHA images, drawing, example, example program, graphics, image processing, internet, transformations, web, Windows Forms programming
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