libpotrace is a libraru for Peter Selinger's GPLed utility
for tracing bitmaps, converting them into smooth, scalable images.
projectM is an awesome music visualizer. There is nothing better in the world
of Unix. projectM's greatness comes from the hard work of the community. Users
like you can create presets that connect music with incredible visuals. Try it!
LibRaw is a library for reading RAW files obtained from digital photo
cameras (CRW/CR2, NEF, RAF, DNG, and others).
LibRaw is based on the source codes of the dcraw utility, where part of
drawbacks have already been eliminated and part will be fixed in future.
The users of the library are provided with API to be built into their
software programs.
LibRaw is intended to be used in any software that involves RAW file
processing for a variety of purposes: RAW converters, data analyzers,
panorama stitchers, noise suppressors, etc.
Atril is a document viewer for multiple document formats including PDF and
Postscript. The goal of Atril is to replace document viewers such as ggv and
gpdf with a single, simple application.
This lite version doesn't have depend on MATE libraries. Such as caja.
The Progressive Graphics File (PGF) is an efficient image file format that is
based on a fast, discrete wavelet transform with progressive coding features.
PGF can be used for lossless and lossy compression.
Atril is a document viewer for multiple document formats including PDF and
Postscript. The goal of Atril is to replace document viewers such as ggv and
gpdf with a single, simple application.
Spiro is the creation of Raph Levien. It simplifies the drawing of beautiful
curves.
Using bezier splines an artist can easily draw curves with the same slope on
either side of an on-curve point. Spiros, on the other hand, are based on
clothoid splines which make it easy to maintain constant curvature as well as
constant slope. Such curves will simply look nicer.
Raph Levien's spiro splines only use on-curve points and so are easier to use
and more intuitive to the artist.
This library will take an array of spiro control points and convert them into a
series of bezier splines which can then be used in the myriad of ways the world
has come to use beziers.
(Above taken from Introduction on the library's website)
SVG Rendering library using cairo
A parser for SVG content in files or buffers
Libvisual is an abstraction library that comes between applications and audio
visualisation plugins.
Often when it comes to audio visualisation plugins or programs that create
visuals, they depend on a player or something else; basically, there is no
general framework that enabled application developers to easily access cool
audio visualisation plugins. Libvisual wants to change this by providing an
interface towards plugins and applications; through this easy to use interface
applications can easily access plugins and, since the drawing is done by the
application, it also enables the developer to draw the visual anywhere he
wants.
The framework also allows you to morph to different plugins and mix two at
once; all kinds of neat tricks are possible using this method.