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libjpeg-turbo is a fork of libjpeg that uses SIMD instructions to accelerate baseline JPEG encoding and decoding. Many projects are now using libjpeg-turbo instead of libjpeg, including popular Linux distributions (Fedora, Debian, Mageia, openSUSE, ...), Mozilla, and Chrome.
Some free software licences, including the GNU General Public License (GPL) and European Union Public Licence (EUPL), can also be used to license content other than software. However, the FSF has recommended against using the GPL for educational works.
OpenJPEG is an open-source library to encode and decode JPEG 2000 images. As of version 2.1 released in April 2014, it is officially conformant with the JPEG 2000 Part-1 standard. [3]
The following table compares various features of each license and is a general guide to the terms and conditions of each license, based on seven subjects or categories. Recent tools like the European Commissions' Joinup Licensing Assistant, [ 10 ] makes possible the licenses selection and comparison based on more than 40 subjects or categories ...
{{cc-by-sa-4.0}} – Attribution-Sharealike 4.0 license. This is suggested as a file licensing tag for image creators . Generally, a work licensed under a CC tag with more requirements cannot be integrated into a work licensed under a more permissive CC license (such as integrating a CC BY-SA work into a CC BY work), unless the entire target ...
License compatibility is a legal framework that allows for pieces of software with different software licenses to be distributed together. The need for such a framework arises because the different licenses can contain contradictory requirements, rendering it impossible to legally combine source code from separately-licensed software in order to create and publish a new program.
Jpegtran is part of libjpeg. A package called littleutils contains a script called opt-jpg that automates JPEG optimization, using jpegtran as the underlying engine. JPEG files can also be losslessly optimized with JPGExtra , which removes all hidden "extras" (or metadata ) from the files without affecting the image data.
The zlib license is a permissive software license which defines the terms under which the zlib software library can be distributed. It is also used by many other open-source packages. The libpng library uses a similar license, libpng license , sometimes referred interchangeably as zlib/libpng license .