Open Source Computer Vision Library https://opencv.org/
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Alexander Alekhin fc41c18c6f Merge remote-tracking branch 'upstream/3.4' into merge-3.4 5 years ago
..
carotene Merge remote-tracking branch 'upstream/3.4' into merge-3.4 5 years ago
cpufeatures eliminate build warnings 6 years ago
ffmpeg ffmpeg/4.x: update FFmpeg plugin 5 years ago
include Merge remote-tracking branch 'upstream/3.4' into merge-3.4 6 years ago
ippicv Merge pull request #12877 from maver1:3.4 6 years ago
ittnotify 3rdparty(itt): support AARCH64 6 years ago
libjasper Merge pull request #15279 from neheb:patch-1 5 years ago
libjpeg cmake: update initialization 5 years ago
libjpeg-turbo 3rdparty: fix missing files from libjpeg-turbo 2.0.2 6 years ago
libpng Merge pull request #15554 from alalek:pr15422_patch_files 5 years ago
libtiff 3rdparty: fix libtiff build 6 years ago
libwebp Merge pull request #15554 from alalek:pr15422_patch_files 5 years ago
openexr Merge pull request #14725 from alalek:update_openexr_2.3.0 6 years ago
openvx fix openvx wrappers 6 years ago
protobuf build: GCC9 compilation 5 years ago
quirc Added QR code decoding. 6 years ago
tbb 3rdparty: TBB version 2018u1 => 2019u8 6 years ago
zlib Merge pull request #15059 from hugolm84:improved-support-for-wince 5 years ago
.gitattributes Disabled whitespace checking for 3rdparty. 11 years ago
readme.txt 3rdparty: integrate libjpeg-turbo build scripts into OpenCV 7 years ago

readme.txt

This folder contains libraries and headers of a few very popular still image codecs
used by imgcodecs module.
The libraries and headers are preferably to build Win32 and Win64 versions of OpenCV.
On UNIX systems all the libraries are automatically detected by configure script.
In order to use these versions of libraries instead of system ones on UNIX systems you
should use BUILD_<library_name> CMake flags (for example, BUILD_PNG for the libpng library).

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libjpeg (deprecated) The Independent JPEG Group's JPEG software.
Copyright (C) 1991-2012, Thomas G. Lane, Guido Vollbeding.
See IGJ home page http://www.ijg.org
for details and links to the source code

libjpeg-turbo libjpeg-turbo is covered by three compatible BSD-style open source licenses.
Refer to [LICENSE.md](libjpeg-turbo/LICENSE.md) for a roll-up of license terms.

Site: https://github.com/libjpeg-turbo/libjpeg-turbo
API is compatible with original libjpeg.

WITH_JPEG CMake option must be ON to add libjpeg or libjpeg-turbo support to imgcodecs.
BUILD_JPEG=ON selects libjpeg-turbo by default (since OpenCV 3.4.2).
Enable BUILD_JPEG_TURBO_DISABLE=ON to force using of libjpeg (this option is removed in OpenCV 4.0).
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libpng Portable Network Graphics library.
The license and copyright notes can be found in libpng/LICENSE.
See libpng home page http://www.libpng.org
for details and links to the source code

WITH_PNG CMake option must be ON to add libpng support to imgcodecs.
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libtiff Tag Image File Format (TIFF) Software
Copyright (c) 1988-1997 Sam Leffler
Copyright (c) 1991-1997 Silicon Graphics, Inc.
See libtiff home page http://www.remotesensing.org/libtiff/
for details and links to the source code

WITH_TIFF CMake option must be ON to add libtiff & zlib support to imgcodecs.
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zlib General purpose LZ77 compression library
Copyright (C) 1995-2012 Jean-loup Gailly and Mark Adler.
See zlib home page http://www.zlib.net
for details and links to the source code
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jasper JasPer is a collection of software
(i.e., a library and application programs) for the coding
and manipulation of images. This software can handle image data in a
variety of formats. One such format supported by JasPer is the JPEG-2000
format defined in ISO/IEC 15444-1.

Copyright (c) 1999-2000 Image Power, Inc.
Copyright (c) 1999-2000 The University of British Columbia
Copyright (c) 2001-2003 Michael David Adams

The JasPer license can be found in libjasper.
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openexr OpenEXR is a high dynamic-range (HDR) image file format developed
by Industrial Light & Magic for use in computer imaging applications.

Copyright (c) 2006, Industrial Light & Magic, a division of Lucasfilm
Entertainment Company Ltd. Portions contributed and copyright held by
others as indicated. All rights reserved.

The project homepage: http://www.openexr.com
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ffmpeg FFmpeg is a complete, cross-platform solution to record,
convert and stream audio and video. It includes libavcodec -
the leading audio/video codec library, and also libavformat, libavutils and
other helper libraries that are used by OpenCV (in videoio module) to
read and write video files.

Copyright (c) 2001 Fabrice Bellard

The project homepage: http://ffmpeg.org/.

* On Linux/OSX we link user-installed ffmpeg (or ffmpeg fork libav).
* On Windows we use pre-built ffmpeg binaries,
see opencv/3rdparty/ffmpeg/readme.txt for details and licensing information
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