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libjpeg-turbo

libjpeg-turbo is a JPEG image codec that uses SIMD instructions (MMX, SSE2, NEON) to accelerate baseline JPEG compression and decompression on x86, x86-64, and ARM systems. On such systems, libjpeg-turbo is generally 2-4x as fast as libjpeg, all else being equal. On other types of systems, libjpeg-turbo can still outperform libjpeg by a significant amount, by virtue of its highly-optimized Huffman coding routines. In many cases, the performance of libjpeg-turbo rivals that of proprietary high-speed JPEG codecs.

libjpeg-turbo implements both the traditional libjpeg API as well as the less powerful but more straightforward TurboJPEG API. libjpeg-turbo also features colorspace extensions that allow it to compress from/decompress to 32-bit and big-endian pixel buffers (RGBX, XBGR, etc.), as well as a full-featured Java interface.

libjpeg-turbo was originally based on libjpeg/SIMD, an MMX-accelerated derivative of libjpeg v6b developed by Miyasaka Masaru. The TigerVNC and VirtualGL projects made numerous enhancements to the codec in 2009, and in early 2010, libjpeg-turbo spun off into an independent project, with the goal of making high-speed JPEG compression/decompression technology available to a broader range of users and developers.

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Note from the project maintainer: I do not earn a salary for my work on libjpeg-turbo, much of which is pro bono. If you have benefited from this product, please consider making a donation to ensure that I can continue to work on it without starving. (Click on the link below.) Alternately, if you have any improvements in mind for the product, please consider sponsoring my labor to implement them.

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Creative Commons LicenseAll content on this web site is licensed under the Creative Commons Attribution 2.5 License. Any works containing material derived from this web site must cite The libjpeg-turbo Project as the source of the material and list the current URL for the libjpeg-turbo web site.

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Page last modified on May 04, 2014, at 01:15 PM