Easy-to-use command line tool for images
Tool to create bitmaps and fonts for embedded applications.
Display, convert, and edit raster image and vector image files
xBRZ: "Scale by rules" - high quality image upscaling filter by Zenju
Command line tool for scaling and denoising images
Create PDF from JPEG scans and photos
Converts between many 3D data formats
Convert images to Ascii Art, with a lot of options and drawing tools
Extract images contained in scans
Multiplatform tool for batch image conversion
Converts Photo books to another format (ie. ifolor->scribus->pdf)
Merge image files into a single Windows icon (.ico) file.
Extract stereo images from .MPO files
Open source web tool to help you in the data visualisation
Converts AtariST images (.neo, .pi1, .pi2, .pi3) to gifs (using gd).