Swiss army knife of image processing
GraphicsMagick provides a set of commandline tools and programming APIs for manipulating, editing, and converting raster and vector images. It is derived from ImageMagick, with the objective of providing better stability and performance than ImageMagick while retaining the original MIT/X11 license.
A very high quality package of printer drivers for CUPS on Linux, Macintosh OS X, and other POSIX-compliant operating systems. This project also maintains an enhanced Print plug-in for GIMP 2.x from the same code base.
A comprehensive software suite for reading barcodes. Supports EAN/UPC, Code 128, Code 39, Interleaved 2 of 5 and QR Code. Includes libraries and applications for decoding captured barcode images and using a video device (eg, webcam) as a barcode scanner.
A GUI to ease the process of producing a multipage PDF from a scan. gscan2pdf should work on almost any Linux/BSD machine.
Read, write and edit metadata
Perl library and command-line application for reading, writing and editing meta information (EXIF, IPTC, XMP, and more) in a wide variety of file formats (JPEG, TIFF, PNG, PDF, RAW, and more).
A whole bunch of utilities for primitive manipulation of graphic images. Wide array of converters from one graphics format to another. E.g. from g3 fax format to jpeg. Many basic graphics editing tools such as magnifying and cropping.
Open-source and cross-platform picture manager and organizer with complete meta information support: add, edit, search and remove XMP, IPTC, EXIF and JPEG Comment. It also offers batch conversion/renaming of images and lossless rotation and cropping.
Converter of various scalable font formats (most notably TTF) and of the bitmapped BDF format into PostScript Type 1 fonts and metrics (.pfa, .pfb, .afm).
Linux printing, scanning, and photo-card access on most HP multi-function peripherals.
Mona Font is a Japanese proportional font which allows you to view Japanese text arts correctly.
Crystal Space is an Open Source 3D SDK for Unix, Windows, and MacOS/X. It renders with OpenGL and features GLSL shaders, CG shaders, deferred rendering, dynamic shadows, bullet based physics library, terrain engine, skeleton based animation meshes, exporter for Blender, portals, etc...
ZoneMinder is video and cctv surveillance and security application. It supports multiple video or IP cameras and a sophisticated motion detection system based around zones. Both live streams and historic events can be viewed via the web interface.
A fully perl written sofware for windows (also stand alone binary code included, so it does not require perl installation to use it) to receive short messages (SMS) sent by mobilephone.
Various small and useful command-line utilities
The littleutils include a duplicate file finder (repeats), image optimizers (opt-jpg, opt-png, opt-gif, recomp-jpg), file rename tools (lowercase, uppercase, pren), archive recompressors (to-gzip, to-bzip, to-7zip, to-lzma, to-lzip, to-xz), a tempfile utility (tempname), file property tools (filedate, filemode, filenode, fileown, filesize, and lrealpath), and others. See the README file for more details.
adesklets is an interactive Imlib2 console for the X Window System. It provides to scripted languages a clean and simple way to write great looking, mildly interactive desktop integrated graphic applets (aka "desklets").
AfterGlow is a scripts which facilitates the process of generating link graphs from CSV input. AfterGlow is written in Perl and generates output that can be read by GraphViz, Gephi, etc. Source: https://github.com/zrlram/afterglow Tarball: http://pixlcloud.com/afterglow-2
The clothing editor (ClothEd) is a program for converting clothing patterns into three-dimensional meshes.
GGI stands for "General Graphics Interface", and it is a project that aims to develop a reliable, stable and fast graphics system that works everywhere. We want to allow any program using GGI to run on any platform requiring at most a recompile.
Image Tagger is a simple graphical application to allow the tagging of images. It currently allows you to set title, commands, and keywords in the IPTC / EXIF tags. It's not very polished, but it is pretty stable. It uses ExifTool for editing tags.
Cvsplot is a perl script which analyses the history of a CVS-managed project. The script executes on a set of files, analyses their history, and automatically generates graphs that plot lines of code and number of files against time.
EPSILON is a powerful Open Source wavelet image compressor. The project is aimed on parallel and robust image processing.
A small, portable, client/server GUI designed to work on many types of hardware, including handheld computers and other embedded systems. For more information and downloads, see http://picogui.org
Command line to to sync photos to Flickr
flickrsync is a command line tool written in Perl that aims to backup a complete directory structure to Flickr. It creates separate albums on Flickr based on the directory structure of the images. The main goal is to upload all pictures without requiring to move them to new folders. It relies on a few Perl packages mainly to handle HTTP requests and the file system. You should create Your own Flickr API keys, authentication token and add them to the application after You have downloaded it.
Gplot provides a convenient front-end for gnuplot
Gplot provides a convenient front-end for gnuplot. It accepts a large set of options to generate a single plot of one or more sets of data (overlaid as necessary).
Perl bindings to the Modern OpenGL API
The Perl OpenGL 2 module provides bindings to the modern OpenGL APIs for use from the perl language.