OpenCV 4.5.2 has been released!

Release highlights

  • Added support for dynamically loaded parallel_for backends
  • Added IntelligentScissors algorithm implementation
  • Improvements in dnn module:
    • supported several new layers: Mish ONNX subgraph, NormalizeL2 (ONNX), LeakyReLU (TensorFlow) and others
    • supported OpenVINO 2021.3 release
  • G-API module got improvements in inference and media processing areas
  • Improved hardware-accelerated video decoding and encoding
  • Added Android NDK camera support
  • Added WeChat QRCode module to the opencv_contrib

More details can be found in the Changelog.

Most of bugfixes and improvements have made their way to both 3.4 and master branches.

Contributors

Big thanks to everybody who contributed (here is the incomplete list of patch authors; please report if you contributed but do not see your name here):

opencv

Alexander Alekhin, Anatoliy Talamanov, Maksim Shabunin, Dale Phurrough, Liubov Batanina, Alexander Smorkalov, Anastasia M, Maxim Pashchenkov, Orest Chura, Anastasia Murzova, LaurentBerger, Rachel A, Tomoaki Teshima, Zhuo Zhang, Christoph Rackwitz, Giles Payne, OrestChura, Qoo, Ruslan Garnov, SamFC10, Vitaly Tuzov, APrigarina, Aaron Greig, Amir Tulegenov, Anastasiya Pronina, Anna Khakimova, Dan Ben Yosef, Dan Ben-Yosef, Dmitry Budnikov, Francesco Petrogalli, Ilya Lavrenov, Liangqian, Mikhail Nikolskii, Sayed Adel, Suleyman TURKMEN, Vadim Levin, WeiChungChang, YashasSamaga, Alexander Reynolds, Alexey Smirnov, Andrey Golubev, Anton Potapov, Aryansh Omray, Cuntian Liu, Daniel Playfair Cal, Federico Bolelli, Federico Martinez, Grégoire Piffault, Ian Maquignaz, Igor Murzov, Ilya Churaev, Ixarias, Jebastin Nadar, Jonathan Deakin, Justin Chu, Kun Liang, Larry Wei, Liangda-w, Lukas-Alexander Weber, Mark Harfouche, Matt Alvarado, MaximMilashchenko, Mieszko Boczkowski, Mradul Agrawal, Namgoo Lee, Nicola Landolfi, Olivier Le Doeuff, Pavel Rojtberg, Polina Smolnikova, Ruan, Sergei Slashchinin, Sergey Krivohatskiy, Sergey Slashchinin, Smirnov Alexey, Stefan Dragnev, Tsukasa Sugiura, Vincent Rabaud, Xinguang Bian, Your Name, ZhM, Ziachnix, aDanPin, amir.tulegenov, cyy, eplankin, krush11, kyshel, lionkun, mznw, notmatthancock, shioko, the-sparrow

opencv_contrib

Tomoaki Teshima, dddzg, Pavel Rojtberg, Alexander Alekhin, DumDereDum, LaurentBerger, Vadim Pisarevsky, Aaron Miller, Atlas42, Dimitrios Psychogyios, Jan-Kristian Herring, Kévin Andrieux, MrKepzie, Namgoo Lee, Roman Golovanov, Rostislav Vasilikhin, Stefan Brechtken, Suleyman TURKMEN, Sun Aries, Tobias Senst, Ubuntu, Vishal Chiluka, Yahui Wang, aaarthurliu, amir.tulegenov, arsaratovtsev, batters21, berak, chester, dzyGIT

Download OpenCV 4.5.2

Documentation

Sources

Win pack

Win pack with dnn module accelerated by Inference Engine (DLDT) (for AVX2 platforms)

iOS pack

Android pack

Download OpenCV 3.4.14

Documentation

Sources

Win pack

iOS pack

Android pack

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