libjpeg-turbo is a high-speed version of libjpeg for x86 and x86-64 processors which uses SIMD instructions (MMX, SSE2, etc.) to accelerate baseline JPEG compression and decompression. libjpeg-turbo is generally 2-4x as fast as the unmodified version of libjpeg, all else being equal.
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libjpeg-turbo was originally based on libjpeg/SIMD by Miyasaka Masaru, but the TigerVNC and VirtualGL projects made numerous enhancements to the codec, including improved support for Mac OS X, 64-bit support, support for 32-bit and big endian pixel formats (RGBA, ABGR, etc.), accelerated Huffman encoding/decoding, and various bug fixes. The goal was to produce a fully open source codec that could replace the partially closed source TurboJPEG/IPP codec used by VirtualGL and TurboVNC. [Less]
Imebra is a multiplatform open source C++ Dicom library.
The library can handle Dicom3, NEMA and Jpeg files and supplies both high-level and raw access to the loaded data.
The embedded images can be easily decompressed or converted to other color formats or bit depth; writing Dicom Viewers or
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Imebra also supports the Unicode standard (on the fly conversion to/from Dicom charsets) and the delayed-loading of large tags. [Less]
Musepack or MPC is an open source lossy audio codec, specifically optimized for transparent compression of stereo audio at bitrates of 160–180 (manual set allows bitrates up to 320) kbit/s. It was formerly known as MPEGplus, MPEG+ or MP+.
Graphical application to aid in the restoration of JPEG compressed images, in order to reduce the noise added by the JPEG lossy compression, through the implementation of restoration algorithms and the manual tuning of their parameters.
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