Pictag is a simple web photo gallery with automatic thumbnail generation and tagging capability. It's self-contained in a single file, uses the filesystem for gallery layout, and requires no stand-alone database (it uses SQLite) or no database at all. It handles EXIF data, provides support for HTTP user authentication and authorization, and is customizable.
The metric implemented in the Image::Density Perl Module estimates the density of data where there is data, and has a reasonable correlation with goodness as judged by humans. That is, if you let a human look at a set of images and judge quality, the density values for those images as calculated here tend to correlate well with the human judgement (densities that are too high or too low represent "bad'' images). It is intended for use on bitonal TIFF images, such as those from scanning paper documents.
Renrot renames files according the flexible name template (allowing DateTimeOriginal and FileModifyDate EXIF tags, if they exist; otherwise, the name will be set according to the current timestamp). It can aggregate files according to shooting time period. It can losslessly rotate JPEGs and their thumbnails according to the Orientation EXIF tag or a given angle. It can put commentary into the Commentary and UserComment tags. Personal details can be specified via XMP tags defined in a configuration file.
The Pure Perl RayCaster is a small simple ray-casting application written completely in Perl without using OpenGL or any other 3D API library. For the GUI, it uses wxPerl. It can load a 3D object from a file (in RAW format), display the object in wireframe perspective view, allow you to orbit and zoom your camera, and produce a user defined size ray casting image of the current view in a predefined color theme, with or without smooth shading. It is well suited for educational purposes, in order to study, understand, tweak, and try well known fundamental 3D computer graphics techniques.
dvd2mp3 is a Perl script that converts audio tracks on a DVD into id3-tagged MP3 files. It was written for Linux, though it could probably be used on other Unixes with little trouble. It requires Mplayer, LAME, lsdvd, MP3::Tag, and Term::ReadLine. It is intended to be an easy way to convert convert concert DVDs (as well as other DVDs that have interesting audio tracks) into MP3s.
Basilisk is a full-featured middleware library to develop games. It features sprites, animations, real time sound mixing with filters and special effects, high resolution timers, a basic 3D math library, an input system based on bindable actions, fullscreen exclusive mode support, resolution managers, JDK 5.0 compatibility, and more.
The PyGE project aims to provide free cross-platform desktop applications to make the growing collection of copyright-free literary works from Project Gutenberg more accessible to the typical computer user. The suite includes PyGETS, a program for searching and downloading available PG e-texts, PyGEMZ, a program for converting e-texts to a format suitable for both desktop and Palm PDA usage, and PyGERS, a program for comfortably viewing e-texts which includes basic text-to-speech capabilities.