1This folder contains libraries and headers of a few very popular still image codecs 2used by imgcodecs module. 3The libraries and headers are preferably to build Win32 and Win64 versions of OpenCV. 4On UNIX systems all the libraries are automatically detected by configure script. 5In order to use these versions of libraries instead of system ones on UNIX systems you 6should use BUILD_<library_name> CMake flags (for example, BUILD_PNG for the libpng library). 7 8------------------------------------------------------------------------------------ 9libjpeg 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------------------------------------------------------------------------------------ 16libpng 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------------------------------------------------------------------------------------ 23libtiff 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------------------------------------------------------------------------------------ 31zlib 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------------------------------------------------------------------------------------ 36jasper 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------------------------------------------------------------------------------------ 48openexr 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------------------------------------------------------------------------------------ 57ffmpeg 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