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readme.txt

      1 This folder contains libraries and headers of a few very popular still image codecs
      2 used by imgcodecs module.
      3 The libraries and headers are preferably to build Win32 and Win64 versions of OpenCV.
      4 On UNIX systems all the libraries are automatically detected by configure script.
      5 In order to use these versions of libraries instead of system ones on UNIX systems you
      6 should use BUILD_<library_name> CMake flags (for example, BUILD_PNG for the libpng library).
      7 
      8 ------------------------------------------------------------------------------------
      9 libjpeg               The Independent JPEG Group's JPEG software.
     10                       Copyright (C) 1991-2012, Thomas G. Lane, Guido Vollbeding.
     11                       See IGJ home page http://www.ijg.org
     12                       for details and links to the source code
     13 
     14                       WITH_JPEG CMake option must be ON to add libjpeg support to imgcodecs.
     15 ------------------------------------------------------------------------------------
     16 libpng                Portable Network Graphics library.
     17                       Copyright (c) 2004, 2006-2012 Glenn Randers-Pehrson.
     18                       See libpng home page http://www.libpng.org
     19                       for details and links to the source code
     20 
     21                       WITH_PNG CMake option must be ON to add libpng support to imgcodecs.
     22 ------------------------------------------------------------------------------------
     23 libtiff               Tag Image File Format (TIFF) Software
     24                       Copyright (c) 1988-1997 Sam Leffler
     25                       Copyright (c) 1991-1997 Silicon Graphics, Inc.
     26                       See libtiff home page http://www.remotesensing.org/libtiff/
     27                       for details and links to the source code
     28 
     29                       WITH_TIFF CMake option must be ON to add libtiff & zlib support to imgcodecs.
     30 ------------------------------------------------------------------------------------
     31 zlib                  General purpose LZ77 compression library
     32                       Copyright (C) 1995-2012 Jean-loup Gailly and Mark Adler.
     33                       See zlib home page http://www.zlib.net
     34                       for details and links to the source code
     35 ------------------------------------------------------------------------------------
     36 jasper                JasPer is a collection of software
     37                       (i.e., a library and application programs) for the coding
     38                       and manipulation of images.  This software can handle image data in a
     39                       variety of formats.  One such format supported by JasPer is the JPEG-2000
     40                       format defined in ISO/IEC 15444-1.
     41 
     42                       Copyright (c) 1999-2000 Image Power, Inc.
     43                       Copyright (c) 1999-2000 The University of British Columbia
     44                       Copyright (c) 2001-2003 Michael David Adams
     45 
     46                       The JasPer license can be found in libjasper.
     47 ------------------------------------------------------------------------------------
     48 openexr               OpenEXR is a high dynamic-range (HDR) image file format developed
     49                       by Industrial Light & Magic for use in computer imaging applications.
     50 
     51                       Copyright (c) 2006, Industrial Light & Magic, a division of Lucasfilm
     52                       Entertainment Company Ltd. Portions contributed and copyright held by
     53                       others as indicated. All rights reserved.
     54 
     55                       The project homepage: http://www.openexr.com
     56 ------------------------------------------------------------------------------------
     57 ffmpeg                FFmpeg is a complete, cross-platform solution to record,
     58                       convert and stream audio and video. It includes libavcodec -
     59                       the leading audio/video codec library, and also libavformat, libavutils and
     60                       other helper libraries that are used by OpenCV (in videoio module) to
     61                       read and write video files.
     62 
     63                       Copyright (c) 2001 Fabrice Bellard
     64 
     65                       The project homepage: http://ffmpeg.org/.
     66                       
     67                       * On Linux/OSX we link user-installed ffmpeg (or ffmpeg fork libav).
     68                       * On Windows we use pre-built ffmpeg binaries,
     69                         see opencv/3rdparty/ffmpeg/readme.txt for details and licensing information
     70 ------------------------------------------------------------------------------------
     71