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The Puzzle library is designed to quickly find visually similar images (GIF, PNG, JPG), even if they have been resized, recompressed, recolored or slightly modified. The library is free, lightweight yet very fast, configurable, easy to use and it has been designed with security in mind.

Libqrencode is a C library for encoding data in a QR Code symbol, a kind of 2D symbology that can be scanned by handy terminals such as a mobile phone with CCD. The capacity of QR Code is up to 7000 digits or 4000 characters, and is highly robustness. Libqrencode supports QR Code model 2, described in JIS (Japanese Industrial Standards) X0510:2004 or ISO/IEC 18004. Currently the following features are not supported: * ECI and FNC1 mode * QR Code model 1

librasterlite is an open source library that stores and retrieves huge raster coverages using a SpatiaLite DBMS.

The main purpose of LibMorph is loading (and saving) 3d models (3d modeller object files). Given loader is dynamically linked when format of requested file is recognized. The library is very young piece of software, so chances are high that some things don't work yet as they should or at all. If you have need for some particular feature, drop me a mail, I'll try to reprioritize my TODO list. LibMorph currently supports following formats (only loading at the moment): LWOB -- LightWave[TM], 3DS -- 3D Studio[TM], In future hopefully it'll support: ? -- Alias Wavefront[TM] MAX -- 3D Studio Max[TM] DXF -- CAD? ? -- Maya[TM] ? -- Soft Image[TM] SVG -- XML, 2d Vector files converted to 3d (via libart?) and more

librasterlite2 is an open source library that stores and retrieves huge raster coverages using a SpatiaLite DBMS.

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.

LibreAtlas is an open source Geography Education application built on top of SpatiaLite and RasterLite. It uses LibreAtlas databases which are a digital alternative to a paper atlas.

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.

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)