Aeskulap Viewer
Medical image viewer and DICOM network client
Agave
Generate color schemes

Amide
analysis tool for medical images

Aqsis Renderer
Render RenderMan Interface Bytestream (RIB) files

Aqsis Shader Inspector
Inspect compiled RenderMan Shading Language (RSL) files
FreeCAD
Feature based Parametric Modeler

ASEPRITE
Animated sprite editor & pixel art tool

Birdfont
Font editor
Blender
Blender Template

LRF Viewer
Viewer for LRF files (SONY ebook format files)

E-Book Viewer
Viewer for E-books in all the major formats

nip2
Image manipulation program based on VIPS
Cbrpager
A simple comic book pager for Linux
Cenon
Vector graphics application for GNUstep

Cirkuit
A program to draw circuits and diagrams
Comix
A viewer for comic book archives

Converseen
Batch image converter
Cortina
Manage your desktop wallpapers
Darktable
Organize and develop images from digital cameras
delaboratory
enhance color and contrast

Desktop Flickr Organizer
Desktop Flickr Organizer for Gnome
Dia
Edit your Diagrams
digiKam
Manage your photographs like a professional with the power of open source

Load Calibration
Sets ICC profiles and loads calibration curves for all configured display devices

dispcalGUI 3D LUT Maker
Generates 3D LUTs and ICC DeviceLink profiles

dispcalGUI VRML to X3D converter
Converts VRML files to X3D embedded in HTML

dispcalGUI Curve Viewer
Shows calibration and ICC profile tone response curves. Only support ICC v2.

dispcalGUI ICC Profile Information
Shows information about an ICC profile. Graphs only support ICC v2.

dispcalGUI Scripting Client
Control dispcalGUI via simple scripting commands

dispcalGUI Synthetic ICC Profile Creator
Creates ICC profiles of synthetic RGB colorspaces

dispcalGUI Testchart Editor
A testchart editor and creator for RGB testcharts in Argyll CMS CGATS format

dispcalGUI
A graphical user interface for the Argyll CMS display calibration utilities
DjView4
Viewer for DjVu documents

Entangle
Tethered Camera Control & Capture
Eye of MATE Image Viewer
Browse and rotate images
Print Preview
Preview before printing
Evolvotron
Interactive image generator

Feh
Image viewer and cataloguer
fractgen
Extensible Fractal Generator
flpsed
WYSIWYG pseudo PostScript editor
Font Manager
Preview, Compare and Manage Fonts
Font Sampler
Create a PDF sample sheet from a directory of fonts

FontForge
An outline font editor

Fonty Python Font Manager
View and temporarily install all kinds of fonts.

Fotowall
Photo collection creativity tool

Fotoxx
Program for edit photos and manage collections
Fracplanet
Interactive fractal planet generator