Library of programming functions mainly aimed at real-time vision

OpenCV

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OpenCV 4.1.2

  -  203 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-4.1.2-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 4.1.2.


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 4.1.2

  • OpenCV 4.1.2 Screenshots

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

    OpenCV 4.1.2 Screenshot 1
  • OpenCV 4.1.2 Screenshot 2
  • OpenCV 4.1.2 Screenshot 3
  • OpenCV 4.1.2 Screenshot 4

What's new in this version:

DNN module:
Intel® Inference Engine backend (OpenVINO™):
- 2019R3 has been supported
- Support modern IE Core API
- New approach for custom layers management. Now all the OpenCV layers fallbacks are implemented as IE custom layers which helps to improve efficiency due less graph partitioning

- High-level API which introduces dnn::Model class and set of task-specific classes such dnn::ClassificationModel, dnn::DetectionModel, dnn::SegmentationModel. It supports automatic pre- and post-processing for deep learning networks

Performance improvements and platforms support:
- MSA SIMD implementation has been contributed for MIPS platforms: https://github.com/opencv/opencv/pull/15422
- OpenCV.js optimization (threading and SIMD as part of GSoC project): https://github.com/opencv/opencv/pull/15371
- More optimizations using SIMD intrinsics: dotProd, FAST corners, HOG, LK pyramid (VSX), norm, warpPerspective, etc.
- Fixed detection of Cascade Lake CPUs

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