Two PHP scripts. The first script creates a static JPEG image with fully customizable features. You can easily modify the size of image, the font (kind, size, angle, distortion etc, the background, the noise. You can also use a subset of shown characters (only red ones). The second is able to create an animated gif showing a sum, always partially visible. OCR softwares and spam-bots can never see complete sum. You can select three kinds of animation or a random animation
