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Project Description

The Open Source Computer Vision Library has >2500 algorithms, extensive documentation and sample code for real-time computer vision. It works on Windows, Linux, Mac OS X, Android and iOS.

Homepage: opencv.org Q&A forum: answers.opencv.org Documentation: docs.opencv.org

Please pay special attention to our tutorials! http://docs.opencv.org/doc/tutorials/tutorials.html

Books about the OpenCV are described here: http://opencv.org/books.html

System Requirements

Operating System: All 32-bit MS Windows (95/98/NT/2000/XP/Vista/7), Android, MacOSX, POSIX (Linux,BSD,Solaris etc..), Linux, Windows 95/98/ME, Windows NT/2000, Windows XP

Download Package list

Latest 5 files
Name Size Date Download count
opencv-4.4.0-vc14_vc15.exe 208.3 MB 2020-07-18 16:48 182
opencv-4.4.0-ios-framework.zip 182.8 MB 2020-07-18 16:45 10
opencv-4.4.0-docs.zip 82.9 MB 2020-07-18 16:44 19
opencv-4.4.0-dldt-2020.4-vc16-avx2-debug.7z 188.2 MB 2020-07-18 16:42 2
opencv-4.4.0-dldt-2020.4-vc16-avx2.zip 241.9 MB 2020-07-18 16:39 8
All Files
4.4.0
opencv-4.4.0-vc14_vc15.exe208.3 MB2020-07-18 16:48182
opencv-4.4.0-ios-framework.zip182.8 MB2020-07-18 16:4510
opencv-4.4.0-docs.zip82.9 MB2020-07-18 16:4419
opencv-4.4.0-dldt-2020.4-vc16-avx2-debug.7z188.2 MB2020-07-18 16:422
opencv-4.4.0-dldt-2020.4-vc16-avx2.zip241.9 MB2020-07-18 16:398
opencv-4.4.0-dldt-2020.4-vc16-avx2.7z158.5 MB2020-07-18 16:372
opencv-4.4.0-dldt-2020.3-vc16-avx2-debug.7z183.3 MB2020-07-18 16:342
opencv-4.4.0-dldt-2020.3-vc16-avx2.zip236.0 MB2020-07-18 16:313
opencv-4.4.0-dldt-2020.3-vc16-avx2.7z155.1 MB2020-07-18 16:272
opencv-4.4.0-android-sdk.zip234.5 MB2020-07-18 16:2118
OpenCV 4.4.0.tar.gz86.8 MB2020-07-18 07:4328
OpenCV 4.4.0.zip90.9 MB2020-07-18 07:4319
README.md1.2 KB2020-07-18 07:434
3.4.11
opencv-3.4.11-vc14_vc15.exe187.5 MB2020-07-17 20:4130
opencv-3.4.11-ios-framework.zip135.2 MB2020-07-17 20:383
opencv-3.4.11-docs.zip77.7 MB2020-07-17 20:373
opencv-3.4.11-android-sdk.zip329.0 MB2020-07-17 20:345
OpenCV 3.4.11.tar.gz85.4 MB2020-07-17 09:3421
OpenCV 3.4.11.zip89.7 MB2020-07-17 09:3416
README.md0.4 KB2020-07-17 09:343
4.3.0
opencv-4.3.0-dldt-2020.2-vc16-avx2-debug.7z183.4 MB2020-04-16 03:2239
opencv-4.3.0-dldt-2020.2-vc16-avx2.zip232.9 MB2020-04-16 03:1445
opencv-4.3.0-dldt-2020.2-vc16-avx2.7z154.5 MB2020-04-16 03:0418
opencv-4.3.0-vc14_vc15.exe206.8 MB2020-04-04 06:111409
opencv-4.3.0-ios-framework.zip156.8 MB2020-04-04 06:0520
opencv-4.3.0-docs.zip82.5 MB2020-04-04 06:02116
opencv-4.3.0-dldt-2020.1-vc16-avx2-debug.7z179.0 MB2020-04-04 05:5610
opencv-4.3.0-dldt-2020.1-vc16-avx2.zip226.7 MB2020-04-04 05:4821
opencv-4.3.0-dldt-2020.1-vc16-avx2.7z151.7 MB2020-04-04 05:422
opencv-4.3.0-android-sdk.zip232.2 MB2020-04-04 05:34341
OpenCV 4.3.0.tar.gz85.9 MB2020-04-03 20:4550
OpenCV 4.3.0.zip89.8 MB2020-04-03 20:4572
README.md0.3 KB2020-04-03 20:4515
3.4.10
opencv-3.4.10-vc14_vc15.exe187.1 MB2020-04-03 20:58213
opencv-3.4.10-ios-framework.zip133.8 MB2020-04-03 20:5410
opencv-3.4.10-docs.zip77.7 MB2020-04-03 20:5141
opencv-3.4.10-android-sdk.zip326.7 MB2020-04-03 20:4231
OpenCV 3.4.10.tar.gz85.4 MB2020-04-03 04:5930
OpenCV 3.4.10.zip89.7 MB2020-04-03 04:59102
README.md32 B2020-04-03 04:5910
4.2.0
opencv-4.2.0-ios-framework.zip153.6 MB2019-12-21 07:4917
opencv-4.2.0-vc14_vc15.exe210.7 MB2019-12-21 07:493825
opencv-4.2.0-android-sdk.zip223.5 MB2019-12-21 07:49162
opencv-4.2.0-docs.zip82.3 MB2019-12-21 07:4947
OpenCV 4.2.0.tar.gz85.7 MB2019-12-20 22:4498
OpenCV 4.2.0.zip89.7 MB2019-12-20 22:44124
README.md0.1 KB2019-12-20 22:4421
3.4.9
opencv-3.4.9-vc14_vc15.exe190.4 MB2019-12-20 19:3190
opencv-3.4.9-docs.zip77.6 MB2019-12-20 19:3125
opencv-3.4.9-ios-framework.zip131.8 MB2019-12-20 19:317
opencv-3.4.9-android-sdk.zip324.5 MB2019-12-20 19:3122
OpenCV 3.4.9.tar.gz85.3 MB2019-12-20 00:1674
OpenCV 3.4.9.zip89.6 MB2019-12-20 00:1638
README.md31 B2019-12-20 00:169
4.1.2
opencv-4.1.2-docs.zip82.0 MB2019-10-10 20:4628
opencv-4.1.2-ios-framework.zip150.9 MB2019-10-10 20:4616
opencv-4.1.2-vc14_vc15.exe208.4 MB2019-10-10 20:46266
opencv-4.1.2-android-sdk.zip223.2 MB2019-10-10 20:46196
OpenCV 4.1.2.tar.gz85.4 MB2019-10-10 07:5358
OpenCV 4.1.2.zip89.2 MB2019-10-10 07:5385
README.md0.1 KB2019-10-10 07:5317
3.4.8
opencv-3.4.8-android-sdk.zip324.1 MB2019-10-10 04:5817
opencv-3.4.8-docs.zip78.6 MB2019-10-10 04:5824
opencv-3.4.8-ios-framework.zip128.7 MB2019-10-10 04:586
opencv-3.4.8-vc14_vc15.exe190.2 MB2019-10-10 04:58398
OpenCV 3.4.8.tar.gz85.3 MB2019-10-09 20:4219
OpenCV 3.4.8.zip89.6 MB2019-10-09 20:4240
README.md31 B2019-10-09 20:424
4.1.1
opencv-4.1.1-docs.zip81.7 MB2019-07-26 14:32459
opencv-4.1.1-ios-framework.zip149.7 MB2019-07-26 14:3289
opencv-4.1.1-vc14_vc15.exe226.4 MB2019-07-26 14:322828
opencv-4.1.1-android-sdk.zip232.1 MB2019-07-26 14:32330
OpenCV 4.1.1.tar.gz86.4 MB2019-07-26 12:24394
OpenCV 4.1.1.zip90.1 MB2019-07-26 12:24492
README.md0.1 KB2019-07-26 12:2434
3.4.7
opencv-3.4.7-android-sdk.zip353.0 MB2019-07-26 12:56189
opencv-3.4.7-docs.zip79.3 MB2019-07-26 12:56304
opencv-3.4.7-ios-framework.zip129.3 MB2019-07-26 12:5619
opencv-3.4.7-vc14_vc15.exe214.3 MB2019-07-26 12:56516
OpenCV 3.4.7.tar.gz86.3 MB2019-07-26 04:01276
OpenCV 3.4.7.zip90.6 MB2019-07-26 04:01447
README.md31 B2019-07-26 04:0119
4.1.0
opencv-4.1.0-vc14_vc15.exe219.8 MB2019-04-08 17:15471
opencv-4.1.0-android-sdk.zip219.1 MB2019-04-08 17:15427
opencv-4.1.0-docs.zip80.7 MB2019-04-08 17:1531
opencv-4.1.0-ios-framework.zip146.1 MB2019-04-08 17:1532
OpenCV 4.1.0.tar.gz86.1 MB2019-04-08 02:09176
OpenCV 4.1.0.zip89.8 MB2019-04-08 02:09194
README.md0.1 KB2019-04-08 02:0925
3.4.6
opencv-3.4.6-ios-framework.zip129.4 MB2019-04-07 21:3411
opencv-3.4.6-vc14_vc15.exe211.7 MB2019-04-07 21:34198
opencv-3.4.6-android-sdk.zip346.3 MB2019-04-07 21:34171
opencv-3.4.6-docs.zip78.7 MB2019-04-07 21:3442
OpenCV 3.4.6.tar.gz86.1 MB2019-04-07 06:43197
OpenCV 3.4.6.zip90.3 MB2019-04-07 06:43254
README.md31 B2019-04-07 06:4332
4.0.1
opencv-4.0.1-vc14_vc15.exe194.9 MB2019-03-22 17:05221
opencv-4.0.1-android-sdk.zip206.0 MB2018-12-22 20:2578
opencv-4.0.1-docs.zip80.8 MB2018-12-22 20:2541
opencv-4.0.1-ios-framework.zip142.9 MB2018-12-22 20:2520
OpenCV 4.0.1.tar.gz85.5 MB2018-12-22 16:0364
OpenCV 4.0.1.zip89.2 MB2018-12-22 16:0360
README.md31 B2018-12-22 16:0323
3.4.5
opencv-3.4.5-docs.zip79.4 MB2018-12-22 04:0737
opencv-3.4.5-ios-framework.zip127.2 MB2018-12-22 04:079
opencv-3.4.5-vc14_vc15.exe207.5 MB2018-12-22 04:07215
opencv-3.4.5-android-sdk.zip340.6 MB2018-12-22 04:0768
OpenCV 3.4.5.tar.gz85.9 MB2018-12-21 23:32107
OpenCV 3.4.5.zip90.1 MB2018-12-21 23:32124
README.md31 B2018-12-21 23:3217
4.0.0
opencv-4.0.0-docs.zip80.6 MB2018-11-18 21:1325
opencv-4.0.0-ios-framework.zip142.4 MB2018-11-18 21:0819
opencv-4.0.0-vc14_vc15.exe193.1 MB2018-11-18 21:08102
OpenCV 4.0.0.tar.gz85.4 MB2018-11-18 18:1946
OpenCV 4.0.0.zip89.0 MB2018-11-18 18:1995
README.md0.1 KB2018-11-18 18:1913
3.4.4
opencv-3.4.4-ios-framework.zip126.7 MB2018-11-17 22:1314
opencv-3.4.4-vc14_vc15.exe207.2 MB2018-11-17 22:13108
opencv-3.4.4-android-sdk.zip340.2 MB2018-11-17 22:13147
opencv-3.4.4-docs.zip79.3 MB2018-11-17 22:1324
OpenCV 3.4.4.tar.gz85.9 MB2018-11-17 19:31293
OpenCV 3.4.4.zip90.1 MB2018-11-17 19:3197
README.md31 B2018-11-17 19:3127
4.0.0-rc
opencv-4.0.0-rc-vc14_vc15.exe210.1 MB2018-11-13 06:5223
opencv-4.0.0-rc-docs.zip81.0 MB2018-11-13 06:526
opencv-4.0.0-rc-ios-framework.zip141.3 MB2018-11-13 06:528
OpenCV 4.0.0-rc.tar.gz84.8 MB2018-11-13 04:4111
OpenCV 4.0.0-rc.zip88.4 MB2018-11-13 04:4110
README.md15 B2018-11-13 04:415
4.0.0-beta
opencv-4.0.0-beta-docs.zip81.0 MB2018-10-16 15:2420
opencv-4.0.0-beta-ios-framework.zip142.1 MB2018-10-16 15:2414
opencv-4.0.0-beta-vc14_vc15.exe221.5 MB2018-10-16 15:2498
OpenCV 4.0.0-beta.tar.gz85.8 MB2018-10-16 05:3315
OpenCV 4.0.0-beta.zip89.4 MB2018-10-16 05:3311
opencv-unix
3.4.3
opencv-3.4.3.zip89.6 MB2018-08-29 21:47412
3.4.2
opencv-3.4.2.zip89.4 MB2018-07-05 00:22330
3.4.1
opencv-3.4.1.zip88.9 MB2018-02-26 18:531744
3.4.0
opencv-3.4.0.zip88.9 MB2017-12-23 08:351091
3.3.1
opencv-3.3.1.zip87.6 MB2017-10-25 01:37216
3.3.0
opencv-3.3.0.zip82.9 MB2017-08-04 13:43441
3.2.0
opencv-3.2.0.zip80.1 MB2016-12-23 23:061009
2.4.13
opencv-2.4.13.zip92.1 MB2016-05-19 23:261445
3.1.0
opencv-3.1.0.zip77.3 MB2015-12-19 01:19921
3.0.0
opencv-3.0.0.zip98.6 MB2015-06-04 21:38505
3.0.0-rc1
opencv-3.0.0-rc1.zip98.4 MB2015-04-24 21:49197
2.4.11
opencv-2.4.11.zip89.5 MB2015-02-27 01:05805
2.4.10
opencv-2.4.10.zip89.5 MB2014-10-08 04:041874
2.4.9
opencv-2.4.9.zip89.5 MB2014-04-17 21:443969
2.3.1
OpenCV-2.3.1a.tar.bz231.9 MB2011-09-13 03:12690
2.2
OpenCV-2.2.0.tar.bz219.3 MB2010-12-05 12:491324
2.1
OpenCV-2.1-Readme.txt1.3 KB2010-04-06 10:47222
OpenCV-2.1.0.tar.bz214.1 MB2010-04-06 10:43727
2.0
OpenCV-2.0.0.tar.bz212.5 MB2009-10-01 09:59768
OpenCV-2.0.0.Readme.Please.txt2.0 KB2009-10-01 09:54153
1.1pre1
opencv-1.1pre1.tar.gz21.8 MB2008-10-20 04:051707
1.0
chopencv-2.5.0.tar.gz13.6 KB2007-05-25 00:2177
opencv-1.0.0.tar.gz10.9 MB2006-11-07 06:283186
opencv-win
3.4.3
opencv-3.4.3-vc14_vc15.exe177.8 MB2018-08-29 21:12342
3.4.2
opencv-3.4.2-vc14_vc15.exe177.3 MB2018-07-05 00:23749
2.4.13
opencv-2.4.13.6-vc14.exe192.9 MB2018-04-22 08:11413
opencv-2.4.13.5-vc14.exe193.0 MB2017-12-23 07:53179
opencv-2.4.13.4-vc14.exe193.0 MB2017-10-25 02:02130
opencv-2.4.13.3-vc14.exe192.6 MB2017-08-01 20:23189
opencv-2.4.13.2-vc14.exe192.4 MB2016-12-19 19:24609
opencv-2.4.13.exe273.1 MB2016-05-19 23:283723
3.4.1
opencv-3.4.1-vc14_vc15.exe176.0 MB2018-02-26 18:5212854
3.4.0
opencv-3.4.0-vc14_vc15.exe174.2 MB2017-12-23 08:391748
2.4.13.483.4 MB2017-10-25 01:49122
3.3.1
opencv-3.3.1-vc14.exe145.4 MB2017-10-25 01:28202
3.3.0
opencv-3.3.0-vc14.exe161.5 MB2017-08-04 13:331305
3.2.0
opencv-3.2.0-vc14.exe120.6 MB2016-12-24 00:162994
2.4.12
opencv-2.4.12.exe272.6 MB2016-03-01 21:08948
3.1.0
opencv-3.1.0.exe112.4 MB2015-12-19 01:031338
3.0.0
opencv-3.0.0.exe275.5 MB2015-06-04 20:091539
3.0.0-rc1
opencv-3.0.0-rc1.exe277.8 MB2015-04-24 17:57327
2.4.11
opencv-2.4.11.exe359.1 MB2015-02-27 00:075055
3.0.0-beta
opencv-3.0.0-beta.exe371.6 MB2014-11-10 20:25881
2.4.10
opencv-2.4.10.exe358.6 MB2014-10-02 18:047341
3.0.0-alpha
opencv-3.0.0-alpha.exe358.7 MB2014-08-18 22:49721
2.4.9
opencv-2.4.9.exe357.1 MB2014-04-16 19:3012400
2.3.1
OpenCV-2.4.0-GPU-demos-pack-win64.exe77.0 MB2012-04-04 21:26284
OpenCV-2.4.0-GPU-demos-pack-win32.exe73.0 MB2012-04-04 21:13605
OpenCV-2.3.1-win-superpack.exe128.0 MB2011-08-18 05:066726
2.2
OpenCV-2.2.0-win-README.txt0.9 KB2010-12-05 13:03265
OpenCV-2.2.0-win.zip29.6 MB2010-12-05 12:423368
OpenCV-2.2.0-win32-vs2010.exe38.0 MB2010-12-05 12:415847
2.1
OpenCV-2.1.0-win.zip24.6 MB2010-04-06 10:354508
OpenCV-2.1.0-win32-vs2008.exe29.8 MB2010-04-06 10:036567
OpenCV-2.1-Readme.txt3.6 KB2010-04-06 09:57355
2.0
OpenCV-2.0.0a-win32.Readme.Please.txt4.5 KB2009-10-01 10:46316
OpenCV-2.0.0a-win32.exe25.1 MB2009-10-01 10:423831
1.1pre1
OpenCV_1.1pre1a.exe26.2 MB2008-10-18 03:321642
1.0
chopencv-2.5.0-win-binary.zip3.1 MB2007-05-25 00:24616
OpenCV_1.0.exe17.6 MB2006-10-20 00:492242
opencv-ios
3.4.3
opencv-3.4.3-ios-framework.zip123.3 MB2018-08-29 21:0755
3.4.2
opencv-3.4.2-ios-framework.zip122.1 MB2018-07-05 00:2155
2.4.13
opencv-2.4.13.6-ios-framework.zip73.6 MB2018-04-22 08:0924
opencv-2.4.13.5-ios-framework.zip73.5 MB2017-12-23 07:5117
opencv-2.4.13.4-ios-framework.zip68.4 MB2017-10-25 01:5422
opencv-2.4.13.3-ios-framework.zip66.6 MB2017-08-01 20:0720
opencv-2.4.13.2-ios-framework.zip66.6 MB2016-12-19 19:25105
opencv2.framework.zip77.9 MB2016-05-19 23:2577
3.4.1
opencv-3.4.1-ios-framework.zip116.5 MB2018-02-26 18:4538
3.4.0
opencv-3.4.0-ios-framework.zip114.4 MB2017-12-23 08:3657
3.3.1
opencv-3.3.1-ios-framework.zip152.2 MB2017-10-25 01:2338
3.3.0
opencv-3.3.0-ios-framework.zip178.4 MB2017-08-04 13:2877
3.2.0
opencv-3.2.0-ios-framework.zip70.2 MB2016-12-23 23:08186
3.1.0
opencv2.framework.zip77.4 MB2015-12-19 01:07120
3.0.0
opencv2.framework.zip26.9 MB2015-06-04 20:06120
3.0.0-rc1
opencv2.framework.zip26.6 MB2015-04-24 17:5436
2.4.11
opencv2.framework.zip25.4 MB2015-02-27 01:18501
2.4.10
opencv2.framework.zip25.4 MB2014-12-10 00:57160
3.0.0-beta
opencv2.framework.zip25.8 MB2014-11-10 18:47112
3.0.0-alpha
opencv2.framework.zip25.2 MB2014-08-20 16:4195
2.4.9
opencv2.framework.zip26.0 MB2014-04-21 23:04671
opencv-android
3.4.3
opencv-3.4.3-android-sdk.zip315.2 MB2018-08-29 21:07280
3.4.2
opencv-3.4.2-android-sdk.zip313.5 MB2018-07-05 00:24131
2.4.13
opencv-2.4.13.6-android-sdk.zip79.1 MB2018-04-22 08:09128
opencv-2.4.13.5-android-sdk.zip79.1 MB2017-12-23 07:5215
opencv-2.4.13.4-android-sdk.zip79.1 MB2017-10-25 01:5219
opencv-2.4.13.3-android-sdk.zip79.0 MB2017-08-01 20:0224
opencv-2.4.13.1-android-sdk.zip78.5 MB2016-12-19 19:1994
opencv-2.4.13.2-android-sdk.zip78.9 MB2016-12-19 19:1865
3.4.1
opencv-3.4.1-android-sdk.zip317.3 MB2018-02-26 18:50193
3.4.0
opencv-3.4.0-android-sdk.zip320.6 MB2017-12-23 08:37293
3.3.1
opencv-3.3.1-android-sdk.zip312.1 MB2017-10-25 01:18103
3.3.0
opencv-3.3.0-android-sdk.zip379.9 MB2017-08-04 13:32155
3.2.0
opencv-3.2.0-android-sdk.zip240.2 MB2016-12-23 23:122286
3.1.0
OpenCV-3.1.0-android-sdk.zip162.3 MB2015-12-19 00:55681
3.0.0
OpenCV-3.0.0-android-sdk-1.zip166.6 MB2015-06-24 17:40215
OpenCV-3.0.0-android-sdk.zip170.8 MB2015-06-04 20:091150
3.0.0-rc1
OpenCV-3.0.0-rc1-android-sdk-1.zip98.1 MB2015-05-13 00:4283
OpenCV-3.0.0-rc1-android-sdk.zip98.0 MB2015-04-24 17:5374
2.4.11
OpenCV-2.4.11-android-sdk.zip120.1 MB2015-03-05 21:36824
2.4.10
OpenCV-2.4.10-android-sdk.zip120.1 MB2014-10-08 03:541677
2.4.9
OpenCV-2.4.9-android-sdk.zip118.3 MB2014-04-17 17:422438
2.3.1
OpenCV-2.3.1-android-bin.tar.bz266.4 MB2011-08-12 23:031572
3rdparty
ippicv
ippicv_windows_20141027.zip26.0 MB2014-11-05 23:0312426
ippicv_macosx_20141027.tgz19.6 MB2014-11-05 23:03429
ippicv_linux_20141027.tgz27.4 MB2014-11-05 23:036377
ippicv_windows_20140429.zip25.1 MB2014-05-23 18:341703
ippicv_macosx_20140429.tgz19.3 MB2014-05-23 18:34127
ippicv_linux_20140513.tgz27.0 MB2014-05-23 18:342354