Library of programming functions mainly aimed at real-time vision

OpenCV

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OpenCV 4.3.0

  -  202 MB  -  Open Source
Free Download

Security Status

  • Latest Version

    OpenCV 4.10.0

  • Operating System

    Windows XP / Vista / Windows 7 / Windows 8 / Windows 10

  • User Rating

    Click to vote

  • Author / Product

    OpenCV Team / External Link

  • Filename

    opencv-4.3.0-vc14_vc15.exe

Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system.

Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of OpenCV 4.3.0.


For those interested in downloading the most recent release of OpenCV or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


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Download OpenCV 4.3.0

  • OpenCV 4.3.0 Screenshots

    The images below have been resized. Click on them to view the screenshots in full size.

    OpenCV 4.3.0 Screenshot 1
  • OpenCV 4.3.0 Screenshot 2
  • OpenCV 4.3.0 Screenshot 3
  • OpenCV 4.3.0 Screenshot 4

What's new in this version:

- Spring update for OpenCV 4.x has been released
- G-API module: TBD

Performance improvements:
- IPP-ICV library with CPU optimizations has been updated to version 2020.0.0 Gold
- SIMD intrinsics: integral, resize, (opencv_contrib) RLOF implementation-

- (opencv_contrib) Computer Vision based Alpha Matting (GSoC 2019)
- calib3d: findChessboardCornersSB improvements
- calib3d: updated documentation for RT matrices
- core: improved getNumberOfCPUs()
- imgproc: new algorithm HOUGH_GRADIENT_ALT is added to HoughCircles() function #16561. It has much better recall and precision
- imgcodecs: added initial support for OpenJPEG library (version 2+)
- highgui(Qt): added Copy to clipboard
- dnn: TensorFlow, Darknet and ONNX importers improvements by @ashishkrshrivastava: PRs
- (opencv_contrib) added rapid module for silhouette based 3D object tracking
- (opencv_contrib) SIFT detector is enabled by default due patents expiration (without requirement of NONFREE build option)
- help materials: OpenCV Cheat Sheet in Python

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