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Acme::Steganography::Image::Png - hide data (badly) in Png images

The ZBar Bar Code Reader is a library for scanning and decoding bar codes from various sources such as video streams, image files or raw intensity sensors. It supports EAN, UPC, Code 128, Code 39 and Interleaved 2 of 5. These are the bindings for interacting directly with the library from Perl.

Captcha::reCAPTCHA::Mailhide - A Perl implementation of the reCAPTCHA Mailhide API reCAPTCHA is a hybrid mechanical turk and captcha that allows visitors who complete the captcha to assist in the digitization of books. reCAPTCHA improves the process of digitizing books by sending words that cannot be read by computers to the Web in the form of CAPTCHAs for humans to decipher. More specifically, each word that cannot be read correctly by OCR is placed on an image and used as a CAPTCHA. This is possible because most OCR programs alert you when a word cannot be read correctly. http://recaptcha.net/learnmore.html

This is a Perl implementation of the reCAPTCHA API. From the recaptcha.net web site: reCAPTCHA improves the process of digitizing books by sending words that cannot be read by computers to the Web in the form of CAPTCHAs for humans to decipher. More specifically, each word that cannot be read correctly by OCR is placed on an image and used as a CAPTCHA. This is possible because most OCR programs alert you when a word cannot be read correctly.

This Perl module is to plot graphs using GNUPLOT on the fly. In order to use this module, gnuplot need to be installed. If image format other than PS and EPS is required to generate, it is recommended to install the convert program of ImageMagick as well.

Graph.pm is a wrapper module that allows easy generation of graphs within perl. Currently Graph.pm supports three graphing packages, gnuplot, XRT, and Xmgrace. These software packages must be obtained separately from this Perl module. Information on each graphing package and it's availability is provided in the documentation on that module.

Color::Rgb - simple rgb.txt parsing class.

The module implements simple calculations with RGB colors. This can be used to create a full color scheme from a few colors.

Color::Library is an easy-to-use and comprehensive named-color dictionary. Currently provides coverage for www (svg, html, css) colors, x11 colors, and more.

The libraries in the Color-Palette distribution are meant to make it easy to build sets of named colors, and to write applications that can define and validate the color names they required.