ImageMagick® is software toolset and library to create, edit, compose, or convert bitmap images. It supports easy cropping, resizing and distorting, combining and morphing, colorizations, animations, applying effects or decorations, adding text, polygons and Bézier curves. Supported image formats include PNG, JPEG, JPEG-2000, GIF, SVG, TIFF, DPX, EXR, PDF and Postscript. IM is comprised of the command line tools convert, identify, mogrify, composite, montage, compare, stream, display (with edi
G'MIC (GREYC's Magic for Image Computing) is a portable and scriptable image processing framework. It comes as C++ library, can be used as command line tool, as Gimp plugin, as web service, or with its Qt application. G'MIC allows image conversion, manipulation, applying complex filters and visualization pipelines. Various image types can be used, 1D/2D/3D sources, multi-spectral and volumetric images or 3D vector objects, regardless of pixel depths. The "gmic" command line tool is often an alte
Drawj2d creates technical line drawings using a descriptive language. It writes pdf, svg, eps and emf vector graphics or png images. It runs on all platforms that run Java. It is inspired by Asymptote but with a tcl-like syntax and 2D only.
darktable is an open source photography workflow application and RAW developer. A virtual lighttable and darkroom for photographers. It manages your digital negatives in a database, lets you view them through a zoomable lighttable and enables you to develop raw images and enhance them.
As a plugin API, Frei0r's main emphasis is on simplicity, to round up the most common video effects into simple filters, sources, and mixers that can be controlled by parameters. Frei0r plugins can be shared by many host applications, avoiding duplicate efforts by different projects. Frei0r is not meant as a competing standard to more ambitious efforts trying to satisfy the needs of many different applications and more complex effects, as it doesn't provides things like an extensive parameter me
Pngcrush is size optimizer for PNG images. It's a command-line tool, works on Unix and DOS environments. It reduces the IDAT picture data stream by testing different PNG filter methods and compression levels. It may also remove meta data chunks, or inject gAMA, tRNS, iCCP or text chunks.
BPGconv can convert multiple JPEG or PNG files into BPG files at once. The conversion processes run parallel to each other, so they can be completed in a shorter time. You can also visually confirm the change in file size from before and after the conversion. The application screen is made up of a single screen. It is designed so you can complete all operations without the need to go back and forth between multiple windows. You can switch between encoding (JPEG/PNG to BPG) and decoding (BPG to J