quirc

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Author : czarkoff
Date : 2016-08-26 10:14:14
Hash : 6515d54e
Message : Quirc is a library for extracting and decoding QR codes from images. It has several features which make it a good choice for this purpose: * It is fast enough to be used with realtime video: extracting and decoding from VGA frame takes about 50 ms on a modern x86 core. * It has a robust and tolerant recognition algorithm. It can correctly recognise and decode QR codes which are rotated and/or oblique to the camera. It can also distinguish and decode multiple codes within the same image. * It is easy to use, with a simple API described in a single commented header file (see below for an overview). * It is small and easily embeddable, with no dependencies other than standard C functions. * It has a very small memory footprint: one byte per image pixel, plus a few kB per decoder object. * It uses no global mutable state, and is safe to use in a multithreaded application. * BSD-licensed, with almost no restrictions regarding use and/or modification. OK sthen@