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release: 4.0.0 / 3.4.4

Alexander Alekhin 2018-11-18 12:33:54 +00:00
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ChangeLog.md

@ -8,9 +8,11 @@ version:4.0.0
**4.0.0-beta**: *October, 2018* **4.0.0-beta**: *October, 2018*
**4.0.0-rc**: *November, 2018* **4.0.0 final**: *November, 2018*
We are moving towards OpenCV 4.0 gold. Here is what's new in OpenCV 4.0 alpha/beta: We are glad to announce OpenCV 4.0 release.
Here is what's new:
![](images/cxx11.png) ![](images/cxx11.png)
@ -50,10 +52,11 @@ We are moving towards OpenCV 4.0 gold. Here is what's new in OpenCV 4.0 alpha/be
- Performance improvements - Performance improvements
- A few hundreds of basic kernels in OpenCV have been rewritten using so-called "wide universal intrinsics". Those intrinsics map to SSE2, SSE4, AVX2, NEON or VSX intrinsics, depending on the target platform and the compile flags. It should translate to noticeably better performance, even for some already optimized functions. For example, if you configure and compile OpenCV with `CPU_BASELINE=AVX2` CMake flag, you can get extra 15-30% speed improvement for certain image processing operations. By OpenCV 4.0 gold we plan to translate many more kernels to such intrinsics and also employ our dynamic dispatching mechanism, so that on x64 platform AVX2-optimized kernels are always built-in and could be selected on-fly if the actual hardware supports such instructions (without having to change `CPU_BASELINE`). Big thanks to Sayed Adel for VSX backend and the initial (but rather complete!) AVX2 backend of the wide universal intrinsics! Big thanks to Vitaly Tuzov for conversion of many functions in OpenCV to wide universal intrinsics. - A few hundreds of basic kernels in OpenCV have been rewritten using so-called "wide universal intrinsics". Those intrinsics map to SSE2, SSE4, AVX2, NEON or VSX intrinsics, depending on the target platform and the compile flags. It should translate to noticeably better performance, even for some already optimized functions. For example, if you configure and compile OpenCV with `CPU_BASELINE=AVX2` CMake flag, you can get extra 15-30% speed improvement for certain image processing operations. By OpenCV 4.0 gold we plan to translate many more kernels to such intrinsics and also employ our dynamic dispatching mechanism, so that on x64 platform AVX2-optimized kernels are always built-in and could be selected on-fly if the actual hardware supports such instructions (without having to change `CPU_BASELINE`). Big thanks to Sayed Adel for VSX backend and the initial (but rather complete!) AVX2 backend of the wide universal intrinsics! Big thanks to Vitaly Tuzov for conversion of many functions in OpenCV to wide universal intrinsics.
- Support for IPP 2019 has beed added with IPPICV component upgrade.
![](images/qrcode.png) ![](images/qrcode.png)
- QR code detector and decoder have been added to opencv/objdetect module together with live [sample](https://github.com/opencv/opencv/blob/master/samples/cpp/live_detect_qrcode.cpp). Currently, the decoder is built on top of QUirc library (which snapshot we put into opencv). Thanks to our intern Alexander Nesterov for this important contribution! - QR code detector and decoder have been added to opencv/objdetect module together with live [sample](https://github.com/opencv/opencv/blob/master/samples/cpp/qrcode.cpp). Currently, the decoder is built on top of QUirc library (which snapshot we put into opencv). Thanks to our intern Alexander Nesterov for this important contribution!
![](images/kinfu.png) ![](images/kinfu.png)
@ -64,162 +67,232 @@ We are moving towards OpenCV 4.0 gold. Here is what's new in OpenCV 4.0 alpha/be
- Very efficient and yet high-quality DIS dense optical flow algorithm has been moved from opencv_contrib to opencv, video module. See the [example](https://github.com/opencv/opencv/blob/master/samples/cpp/dis_opticalflow.cpp). Thanks to Alexander Bokov, our GSoC student, who implemented this algorithm, and Peng Li, who optimized it for GPU. - Very efficient and yet high-quality DIS dense optical flow algorithm has been moved from opencv_contrib to opencv, video module. See the [example](https://github.com/opencv/opencv/blob/master/samples/cpp/dis_opticalflow.cpp). Thanks to Alexander Bokov, our GSoC student, who implemented this algorithm, and Peng Li, who optimized it for GPU.
- At the same time, slower TV L1 optical flow algorithm has been moved from opencv to [opencv_contrib](https://github.com/opencv/opencv_contrib/tree/master/modules/optflow). - At the same time, slower TV L1 optical flow algorithm has been moved from opencv to [opencv_contrib](https://github.com/opencv/opencv_contrib/tree/master/modules/optflow).
### Contributors ### Contributors
<details> <details>
<summary>opencv</summary> <summary>opencv (155 contributors)</summary>
``` ```
git shortlog --no-merges -ns 10ba6a93a6fee952fb7812b28989eb209d4f49a1..4.0.0-alpha git shortlog --no-merges -ns 964a4d75b44a3c4c2425b9ed8c4c25c4e6db79ca..4.0.0
250 Alexander Alekhin 387 Alexander Alekhin
80 Dmitry Kurtaev 99 Dmitry Kurtaev
36 Maksim Shabunin 45 Hamdi Sahloul
29 Hamdi Sahloul 44 Maksim Shabunin
24 Vitaly Tuzov 35 Vitaly Tuzov
18 berak 26 berak
17 Tomoaki Teshima 25 Tomoaki Teshima
16 catree 25 Vadim Pisarevsky
15 Vadim Pisarevsky 23 catree
11 Suleyman TURKMEN 19 Suleyman TURKMEN
10 Sayed Adel 15 Sayed Adel
8 Kuang Fangjun 11 Alexander Nesterov
7 Alexander Nesterov 11 Pavel Rojtberg
7 Li Peng 10 Rostislav Vasilikhin
5 Pavel Rojtberg 9 Dmitry Matveev
5 Rostislav Vasilikhin 8 Kuang Fangjun
5 cyy 7 Li Peng
5 take1014 6 Wu Zhiwen
5 yuki takehara 6 take1014
4 cclauss 5 cyy
3 Namgoo Lee 5 yuki takehara
3 k-shinotsuka 4 Evgeny Latkin
3 shengyu 4 LaurentBerger
2 Alexander Enaldiev 4 cclauss
2 George Mironov 3 Apoorv Goel
2 Karpushin Vladislav 3 Karpushin Vladislav
2 Lubov Batanina 3 Lubov Batanina
2 Mark Harfouche 3 Michał Janiszewski
2 Pavel Vlasov 3 Namgoo Lee
2 Vlad Karpushin 3 Ruslan Garnov
2 Wu Zhiwen 3 Wenfeng CAI
2 gkaneto 3 k-shinotsuka
2 luz.paz 3 shengyu
2 pasbi 3 tompollok
1 Adam Rankin 2 Adam Radomski
1 Alessandro de Oliveira Faria (A.K.A.CABELO) 2 Alexander Duda
1 Alexander Duda 2 Alexander Enaldiev
1 Andrew Mroczkowski 2 Andrew Mroczkowski
1 Arnaud Brejeon 2 Antonio Borondo
1 Bahram Dahi 2 AsyaPronina
1 CJ Smith 2 Dmitry Budnikov
1 CYTing1998 2 George Mironov
1 Colin Smith 2 Jiri Horner
1 Damien Picard 2 Mansoo Kim
1 David 2 Mark Harfouche
1 Fangjun Kuang 2 Pavel Vlasov
1 Florian Echtler 2 Peter Rekdal Sunde
1 Forrest Reiling 2 Sean McBride
1 Gaetano Checinski 2 Vlad Karpushin
1 HarshDolhare 2 Vladislav Sovrasov
1 Hiro Kobayashi 2 fegorsch
1 Jakub Golinowski 2 gkaneto
1 Jiri Horner 2 luz.paz
1 Kaartic Sivaraam 2 pasbi
1 Khem Raj 1 Adam Rankin
1 Kyle D. Patterson 1 Alessandro de Oliveira Faria (A.K.A.CABELO)
1 LaurentBerger 1 Alexey Nikolaev
1 Li, Peng 1 Ali Yasin Eser
1 Lucas Teixeira 1 Anush Elangovan
1 Marat K 1 Apoorv
1 Maxim Smirnov 1 Arnaud Brejeon
1 Michael Firman 1 Bahram Dahi
1 Nesterov Alexander 1 CJ Smith
1 Nobuo Tsukamoto 1 CYTing1998
1 Paul Jurczak 1 Christopher Gundler
1 Paul92 1 Colin Smith
1 Peter Jozsa 1 Damien Picard
1 Peter Leitzen 1 David
1 Peter Rekdal Sunde 1 Diego Barrios Romero
1 Philipp Hasper 1 Emanuele Ruffaldi
1 Pierre Jeambrun 1 Fangjun Kuang
1 Ryan Wong 1 Florian Echtler
1 Sacha 1 Forrest Reiling
1 Sancho McCann 1 Gaetano Checinski
1 Sergey Nuzhny 1 Georgy Mironov
1 Simon Que 1 HarshDolhare
1 Spark Echo 1 Henry
1 Takuho NAKANO 1 Hiro Kobayashi
1 Teng Yiliang 1 Ilari Venäläinen
1 Todor Tomov 1 Ivan Pozdeev
1 Triplesalt 1 Jakub Golinowski
1 Vlad Kraevskiy 1 Jean Carass
1 Vladislav Sovrasov 1 Kaartic Sivaraam
1 Wenfeng CAI 1 Khem Raj
1 Zhenqing Hu 1 Kyle D. Patterson
1 abhi-jha 1 Latkin, Yevgeny I
1 amatyuko 1 Li, Peng
1 asciian 1 Loic Devulder
1 branka-plateiq 1 Loic Petit
1 cDc 1 Lucas Teixeira
1 cabelo 1 Marat K
1 exoson 1 Marco A. Gutierrez
1 gnthibault 1 Matt Bennett
1 ilovezfs 1 Maxim Smirnov
1 jsxyhelu 1 Menghui Xie
1 logic1988 1 Michael Firman
1 matech96 1 Nesterov Alexander
1 miaow1988 1 Nobuo Tsukamoto
1 rockzhan 1 Patrick Cox
1 tompollok 1 Paul Jurczak
1 vishwesh5 1 Paul Shin
1 woody.chow 1 Paul92
1 yom 1 Peter Jozsa
1 zarelaky 1 Peter Leitzen
1 zuoshaobo 1 Peter Whidden
1 Philipp Hasper
1 Pierre Jeambrun
1 Reid Kleckner
1 Ryan Wong
1 Sacha
1 Sam Radhakrishnan
1 Sancho McCann
1 Sergey Nuzhny
1 Simon Que
1 Spark Echo
1 Takuho NAKANO
1 Teng Yiliang
1 Todor Tomov
1 Triplesalt
1 Vlad Kraevskiy
1 WuZhiwen
1 Zhenqing Hu
1 abhi-jha
1 amatyuko
1 asciian
1 branka-plateiq
1 cDc
1 cabelo
1 chacha21
1 drkoller
1 exoson
1 gineshidalgo99
1 gnthibault
1 huangqinjin
1 ilovezfs
1 jasjuang
1 jsxyhelu
1 kamino410
1 logic1988
1 lqy123000
1 matech96
1 maver1
1 miaow1988
1 rockzhan
1 root
1 soonbro
1 ssnover95
1 tellowkrinkle
1 unknown
1 vishwesh5
1 wanghanmin
1 woody.chow
1 yom
1 zarelaky
1 zuoshaobo
``` ```
</details> </details>
<details> <details>
<summary>opencv_contrib</summary> <summary>opencv_contrib (43 contributors)</summary>
``` ```
git shortlog --no-merges -ns 3c536ef4fa882bd64e9f3966412e863d1eeac01a..4.0.0-alpha git shortlog --no-merges -ns aaf8fffcfbe1b80f9653b21d2095bc9037d418be..4.0.0
27 Alexander Alekhin 49 Alexander Alekhin
9 Pavel Rojtberg 18 Hamdi Sahloul
5 LaurentBerger 16 Pavel Rojtberg
4 Hamdi Sahloul 8 LaurentBerger
3 berak 8 Tomoaki Teshima
2 Maksim Shabunin 6 berak
2 Rostislav Vasilikhin 5 Maksim Shabunin
2 Suleyman TURKMEN 5 Vadim Pisarevsky
2 Vitaly Tuzov 4 Rostislav Vasilikhin
2 catree 4 Suleyman TURKMEN
1 Anton Shutikhin 3 Jukka Komulainen
1 Colin 3 soyer
1 Dietrich Büsching 3 tompollok
1 Jan Beich 2 Lubos
1 Jiri Horner 2 Vitaly Tuzov
1 Khem Raj 2 catree
1 Kushashwa Ravi Shrimali 1 Anton Shutikhin
1 Li-Chi Huang 1 Antonio Borondo
1 SongChiYoung 1 Colin
1 Unknown 1 Dietrich Büsching
1 Vadim Pisarevsky 1 Jan Beich
1 Vladislav Sovrasov 1 Jeff Bail
1 bini 1 Jiri Horner
1 d.bouron 1 Khem Raj
1 dianlujitao 1 Kushashwa Ravi Shrimali
1 fegorsch 1 Li-Chi Huang
1 gdemarcq 1 Mohammad Haghighat
1 gmedan 1 Sayed Adel
1 simonreich 1 SongChiYoung
1 trobro 1 Unknown
1 yarglawaldeg 1 Varvrar
1 Vladislav Sovrasov
1 YTY
1 bini
1 d.bouron
1 dianlujitao
1 fegorsch
1 gdemarcq
1 gmedan
1 kartoffelsalat
1 simonreich
1 trobro
1 yarglawaldeg
``` ```
</details> </details>
version:3.4.4
-------------
*November, 2018*
OpenCV 3.4.4 has been released. This is a mantenance release. New features are landed in OpenCV 4.0.
version:3.4.3 version:3.4.3
------------- -------------
@ -228,8 +301,6 @@ version:3.4.3
OpenCV 3.4.3 has been released, with further extended dnn module, documentation improvements, some other new functionality and bug fixes. OpenCV 3.4.3 has been released, with further extended dnn module, documentation improvements, some other new functionality and bug fixes.
**TBD**
### Contributors ### Contributors

2
Home.md

@ -9,7 +9,7 @@ General resources
- :speech_balloon: [Q&A forum](http://answers.opencv.org) - ask questions and share your knowledge by answering others' questions - :speech_balloon: [Q&A forum](http://answers.opencv.org) - ask questions and share your knowledge by answering others' questions
- :books: [Documentation](https://docs.opencv.org/): - :books: [Documentation](https://docs.opencv.org/):
- latest releases: [4.0.0-alpha](https://docs.opencv.org/4.0.0-alpha), [3.4.3](https://docs.opencv.org/3.4.3) and [2.4.13.7](https://docs.opencv.org/2.4.13.7) - latest releases: [4.0.0](https://docs.opencv.org/4.0.0), [3.4.4](https://docs.opencv.org/3.4.4) and [2.4.13.7](https://docs.opencv.org/2.4.13.7)
- nightly releases: [master](https://docs.opencv.org/master) / [3.4](https://docs.opencv.org/3.4) / [2.4](https://docs.opencv.org/2.4) branch - nightly releases: [master](https://docs.opencv.org/master) / [3.4](https://docs.opencv.org/3.4) / [2.4](https://docs.opencv.org/2.4) branch
- :hammer_and_wrench: [Changelog](ChangeLog) - highlights for each library release - :hammer_and_wrench: [Changelog](ChangeLog) - highlights for each library release