Recent Releases

4.11.026 Jan 2025 14:18 major feature: New Year update for OpenCV 4.x has been released. Generic: Internal C API cleanup and back-ports for 5.x. RISC-V/AArch64: disable CPU features detection #25901 Support C++20 standard #26590 algoHint parameter for some functions to allow potentially faster, but not bit-exact implementation Core Module: Added int64 data type support for FileStorage #26434 Fixed invalid attribute value handling in FileStorage #25955. Extended LUT for FP16 support #25787. Fixed stdDev tail filling with zeros with HAL in meanStdDev #25789. Set and check allocator pointer for all cv::Mat instances #25979 Improved accuracy of Rect::contains #26022 Fixed result offset in minMaxIdx with HAL in some cases #26080 Replaced C++ operators with wrapper functions on universal intrinsics backends #26109 Extended cv::TickMeter #26212 Rewrote OpenCL-OpenGL-interop device discovery routine without extensions and with Apple support #26281 Marked cv::Mat(Mat ) as noexcept #25899 Multiple Eigen library interop improvements #25751. Calib3d module: Multiple chessboard detector improvements #25427, #25807, #25991, #26014 Enabled checkerboard detection with a central / corner marker on a black tile #25808 Fixed Rodrigues CV_32F and CV_64F type mismatch in projectPoints #25824 Added fisheye::distort with non-identity projection matrix #25943 SQPnP solver updates #26219 Fixed vector access in USAC #26530 Imgproc Module: Added a new function that approximates the polygon bounding a convex hull with a certain number of sides #25607 Added Weighted Hough Transform #21407 Fixed bug in contours approximation #25672 Fixed bug in divSpectrums #25738 Fixed result buffer overflow in intersectConvexConvex_ for non-convex input #25725. Added flag to GaussianBlur for faster but not b
5.0-alpha28 Nov 2024 00:25 minor feature:
4.10.024 May 2024 23:45 minor feature:
4.9.028 Dec 2023 03:17 minor feature:
4.8.130 Sep 2023 07:25 minor feature:
4.8.023 Jun 2023 07:05 minor feature:
4.7.024 Dec 2022 03:17 minor feature:
4.6.029 May 2022 03:25 minor feature:
4.5.522 Dec 2021 17:45 minor feature:
4.5.407 Oct 2021 11:05 minor feature:
4.5.323 Jun 2021 03:17 minor feature:
4.5.218 Mar 2021 06:45 minor feature:
4.5.130 Nov 2020 17:25 minor feature:
4.5.023 Sep 2020 18:45 minor feature:
4.4.020 Jun 2020 12:25 minor feature:
4.3.026 Mar 2020 03:17 minor feature:
4.2.021 Dec 2019 02:05 minor feature:
4.1.211 Oct 2019 19:43 minor feature: