opencv-python

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

OpenCV 4.5.2 Bugfix release: use proper codebase for opencv. Return back Linux ARM64 build
The previous release (4.5.2.52) was built with an incorrect version of the OpenCV's source code due to the issues that occurred with build infrastructure transitioning. This release fixes it and returns back the Linux ARM64 binaries that we lost due to the move to github actions

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

OpenCV 4.5.2. Change the build infrastructure from Travis & Appveyour to Github Actions.
Solves:

• #459
• #422

Breaking changes

With the transition to GitHub Actions, we miss:

• aarch64 packages
• x86 packages for Linux

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

OpenCV 3.4.14. Change the build infrastructure from Travis & Appveyour to Github Actions.
Solves:

• #459
• #422

Breaking changes

With the transition to GitHub Actions, we miss:

• aarch64 packages
• x86 packages for Linux

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

OpenCV 4.5.2. Change the build infrastructure from Travis & Appveyour to Github Actions.
Solves:

• #459
• #422

Breaking changes

With the transition to GitHub Actions, we miss:

• aarch64 packages
• x86 packages for Linux

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

OpenCV 3.4.14. Change the build infrastructure from Travis & Appveyour to Github Actions.
Solves:

• #459
• #422

Breaking changes

With the transition to GitHub Actions, we miss:

• aarch64 packages
• x86 packages for Linux

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

OpenCV 3.4.13. Adds experimental arm64 Linux wheels.

NOTE: Your pip version must be >= 19.3 to be able to install the pre-built manylinux2014 packages used in the latest releases. Please upgrade your pip with pip install --upgrade pip.

BREAKING CHANGES

Qt support dropped on macOS due to multiple recent issues with it. GUI support is still enabled on macOS via Cocoa but it is more limited than Qt. If you need Qt support, please consider contributing:

• https://github.com/skvark/opencv-python/issues/376
• https://github.com/skvark/opencv-python/issues/423

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

OpenCV 4.5.1. Adds experimental arm64 Linux wheels.

NOTE: Your pip version must be >= 19.3 to be able to install the pre-built manylinux2014 packages used in the latest releases. Please upgrade your pip with pip install --upgrade pip.

BREAKING CHANGES

Qt support dropped on macOS due to multiple recent issues with it. GUI support is still enabled on macOS via Cocoa but it is more limited than Qt. If you need Qt support, please consider contributing:

• https://github.com/skvark/opencv-python/issues/376
• https://github.com/skvark/opencv-python/issues/423

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

Added Python 3.9 support.

NOTE: Your pip version must be >= 19.3 to be able to install the pre-built manylinux2014 packages used in the latest releases. Please upgrade your pip with pip install --upgrade pip.

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

Added Python 3.9 support.

NOTE: Your pip version must be >= 19.3 to be able to install the pre-built manylinux2014 packages used in the latest releases. Please upgrade your pip with pip install --upgrade pip.

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

Python 3.5 support dropped.

Fixes:

• https://github.com/skvark/opencv-python/issues/381

NOTE: Your pip version must be >= 19.3 to be able to install the pre-built manylinux2014 packages used in the latest releases. Please upgrade your pip with pip install --upgrade pip.

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

Python 3.5 support dropped.

Fixes:

• https://github.com/skvark/opencv-python/issues/381

NOTE: Your pip version must be >= 19.3 to be able to install the pre-built manylinux2014 packages used in the latest releases. Please upgrade your pip with pip install --upgrade pip.

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

OpenCV version 4.4.0. Same release as previous 4.4.0.40, but should fix macOS Qt segfault issue: https://github.com/skvark/opencv-python/issues/376

NOTE: Your pip version must be >= 19.3 to be able to install the pre-built manylinux2014 packages used in the latest releases. Please upgrade your pip with pip install --upgrade pip.

Please note that Python 3.5 end-of-life is less than a month away. Upgrade your Python to the latest version as soon as possible since this project will drop Python 3.5 support in August 2020.

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

OpenCV version 3.4.11. Same release as previous 3.4.11.39, but should fix macOS Qt segfault issue: https://github.com/skvark/opencv-python/issues/376

NOTE: Your pip version must be >= 19.3 to be able to install the pre-built manylinux2014 packages used in the latest releases. Please upgrade your pip with pip install --upgrade pip.

Please note that Python 3.5 end-of-life is less than a month away. Upgrade your Python to the latest version as soon as possible since this project will drop Python 3.5 support in August 2020.

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

OpenCV version 4.4.0.

NOTE: Your pip version must be >= 19.3 to be able to install the pre-built manylinux2014 packages used in the last 3 releases. Please upgrade your pip with pip install --upgrade pip.

Please note that Python 3.5 end-of-life is less than a month away. Upgrade your Python to the latest version as soon as possible since this project will drop Python 3.5 support in August 2020.

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

OpenCV version 3.4.11.

NOTE: Your pip version must be >= 19.3 to be able to install the pre-built manylinux2014 packages used in the last 3 releases. Please upgrade your pip with pip install --upgrade pip.

Please note that Python 3.5 end-of-life is less than a month away. Upgrade your Python to the latest version as soon as possible since this project will drop Python 3.5 support in August 2020.

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

OpenCV version 4.3.0.

Changes:

• Source distributions added to PyPI. If your system is incompatible with the pre-built wheels, pip will attempt to build OpenCV Python bindings locally. This requires a recent version of pip to work properly. Please refer to the README for more info. https://github.com/skvark/opencv-python/issues/43
• Python 3.5 macOS wheels which were missing in previous release uploaded to PyPI. https://github.com/skvark/opencv-python/issues/316#issuecomment-654195009
• Linux wheels ship now with Qt 5.15. This should fix many issues which were caused by Qt version conflicts in earlier releases (https://github.com/skvark/opencv-python/issues/362, https://github.com/skvark/opencv-python/issues/46).
• https://github.com/skvark/opencv-python/pull/368

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

OpenCV version 3.4.10.

Changes:

• Source distributions added to PyPI. If your system is incompatible with the pre-built wheels, pip will attempt to build OpenCV Python bindings locally. This requires a recent version of pip to work properly. Please refer to the README for more info. https://github.com/skvark/opencv-python/issues/43
• Python 3.5 macOS wheels which were missing in previous release uploaded to PyPI. https://github.com/skvark/opencv-python/issues/316#issuecomment-654195009
• Linux wheels ship now with Qt 5.15. This should fix many issues which were caused by Qt version conflicts in earlier releases (https://github.com/skvark/opencv-python/issues/362, https://github.com/skvark/opencv-python/issues/46).
• https://github.com/skvark/opencv-python/pull/368

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

OpenCV version 4.3.0. Changes:

• Linux wheels are now manylinux2014 wheels instead of manylinux1. This drops support for some old Linux versions, but makes package maintenance easier and also likely makes the performance also a bit better. Make sure that pip is up-to-date if you encounter issues when installing the latest releases.
• Only patch when called with "bdist_wheel" #315
• Fix LICENSE references for headless wheels #350

NOTE: Due to too old SSL version in macOS Python 3.5 the macOS 3.5 wheels could not be uploaded to PyPI. If the upload logic is easily fixable, then the wheels might be uploaded to PyPI later. However, please note that Python 3.5 end-of-life is in couple of months. Upgrade your Python to the latest version as soon as possible.

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

OpenCV version 3.4.10. Changes:

• Linux wheels are now manylinux2014 wheels instead of manylinux1. This drops support for some old Linux versions, but makes package maintenance easier and also likely makes the performance also a bit better. Make sure that pip is up-to-date if you encounter issues when installing the latest releases.
• Only patch when called with "bdist_wheel" #315
• Fix LICENSE references for headless wheels #350

NOTE: Due to too old SSL version in macOS Python 3.5 the macOS 3.5 wheels could not be uploaded to PyPI. If the upload logic is easily fixable, then the wheels might be uploaded to PyPI later. However, please note that Python 3.5 end-of-life is in couple of months. Upgrade your Python to the latest version as soon as possible.

opencv-python: https://pypi.org/project/opencv-python/
opencv-contrib-python: https://pypi.org/project/opencv-contrib-python/
opencv-python-headless: https://pypi.org/project/opencv-python-headless/
opencv-contrib-python-headless: https://pypi.org/project/opencv-contrib-python-headless/

Same 3.4.9 release as the last one but with some small fixes and changes:

• Dropped Python 2.7 support
  • Note that Python 3.5 will enter to EOL later this year, remember to keep your Python version up to date!
• Qt 5 fix for macOS: #293
• MSMF is now disabled in headless builds: #263
• Multibuild updated
• Readme updated