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
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.
With Hugin you can assemble a mosaic of photographs into a complete immersive panorama, stitch any series of overlapping pictures and much more.
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.
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
GraphicsMagick is the swiss army knife of image processing. Comprised of 267K physical lines (according to David A. Wheeler's SLOCCount) of source code in the base package (or 1,225K including 3rd party libraries) it provides a robust and efficient collection of tools and libraries which support reading, writing, and manipulating an image in over 89 major formats including important formats like DPX, GIF, JPEG, JPEG-2000, PNG, PDF, PNM, TIFF, and WebP. Image processing is multi-threaded using O
Frei0r is a minimalistic plugin API for video effects. The main emphasis is on simplicity for an API that rounds up the most common video effects into simple filters, sources and mixers that can be controlled by parameters. Thanks to the frei0r collection more than a 100 effects can be shared by any application, avoiding duplicate efforts.
The aim of the project is to provide a fully non-destructive photo retouching program with a complete workflow including RAW image development. Here is the general feature (wish)list: Fully non-destructive, layer-based photo editing workflow with realtime preview of the final image Support for 8-bits and 16-bits integer as well as 32-bits and 64-bits floating point precision, selectable at runtime and on a per-image basis Allows to load and edit images of arbitrary size, thanks to the underlyi
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