1 Release published by 1 person

• 4.11.0.20250507

  published May 7, 2025

3 Pull requests merged by 2 people

• Update nuget dependencies

  #1761 merged May 7, 2025

• fix crash in FastNlMeansDenoisingMulti

  #1756 merged May 6, 2025

• 4.11.0

  #1759 merged May 6, 2025

84 Issues closed by 3 people

• 为啥4.1.1版本往上的bitmap 转mat时间都比较长，我看是同样的代码。我用2000万像素图片测试，4.1.1往上版本150ms，4.1.1往下版本2ms.

  #1700 closed May 12, 2025

• Upgrade to OpenCV 4.11

  #1755 closed May 9, 2025

• Generate noise when creating a new Mat()

  #1762 closed May 7, 2025

• Random FPS drop issue with OpenCVSharp using Cv2.Resize (May not related).

  #1716 closed May 6, 2025

• Different open cameras depending on the videoCaptureApi used

  #1663 closed May 6, 2025

• OpenCvSharp.Rect.Empty 怎么没有啦？

  #1715 closed May 6, 2025

• libOpenCvSharpExtern.dylib not included in the build

  #1711 closed May 6, 2025

• VideoWriter: failed to load codec library, yet video is processed and saved

  #1712 closed May 6, 2025

• ubuntu22, net6.0 use OpenCvSharp4 throw exception: Unable to load shared library 'OpenCvSharpExtern' or one of its dependencies.

  #1618 closed May 6, 2025

• Unable to load DLL OpenCvSharpExtern System.DllNotFoundException 0x8007007E when dragging control onto WinForm

  #1710 closed May 6, 2025

• OpenCVSharp does not seem to work with Raspberry PI Camera Module 3

  #1658 closed May 6, 2025

• VideoCapture Dispose long time.

  #1705 closed May 6, 2025

• The function calibrateCameraExtended is not there

  #1709 closed May 6, 2025

• Nuspec dependencies do not match the .csproj for OpenCvSharp.Extensions

  #1688 closed May 6, 2025

• error when build native wrapper OpenCvSharpExtern

  #1708 closed May 6, 2025

• WriteableBitmapConverter Bitmap STATISTICS changed

  #1706 closed May 6, 2025

• Missing InterpolationFlags values

  #1702 closed May 6, 2025

• How should I set a timeout for RTSP?

  #1701 closed May 6, 2025

• Support for .NET 8

  #1697 closed May 6, 2025

• How to Encode and Output VideoWriter with High Quality

  #1696 closed May 6, 2025

• How to set OpenCV environment variables to open advanced configurations of OpenCV

  #1694 closed May 6, 2025

• OpenCvSharp4.runtime.linux-x64 is not found in nuget

  #1692 closed May 6, 2025

• Code that uses MatType built under 4.9 but not under 4.10

  #1685 closed May 6, 2025

• This is a great project - thank you

  #1687 closed May 6, 2025

• Avif encoder not available

  #1671 closed May 6, 2025

• Operator '+' cannot applied to int and Mat

  #1684 closed May 6, 2025

• ChArUco board detection

  #1607 closed May 6, 2025

• VB.Net support for Mat.FromPixelData Missing

  #1681 closed May 6, 2025

• Missing: Rotation estimation, Bundle adjustment, Levenberg Marquardt

  #1676 closed May 6, 2025

• How to compile the OpenCvSharp.Extern On Configuration Debug,Platform x64 with Visual Studio 2022

  #1617 closed May 6, 2025

• CLR/System.TypeInitializationException on raspberry pi

  #1679 closed May 6, 2025

• using opencvsharp for rotation/deskewing an Image is not rotating correctly

  #1672 closed May 6, 2025

• The type initializer for 'OpenCvSharp.Internal.NativeMethods' threw an exception

  #1675 closed May 6, 2025

• Need clear instructions on how to build opencvsharp with cuda to use gpu acceleration?

  #1673 closed May 6, 2025

• Unable to detect if a image is blurred in few cases

  #1666 closed May 6, 2025

• OOM Error

  #1674 closed May 6, 2025

• Compatibility of ver 4.9 with .Net 7.0

  #1665 closed May 6, 2025

• How to build OpencvSharp for Windows with Gstreamer

  #1662 closed May 6, 2025

• Please add cv::dnn::imagesFromBlob() function

  #1661 closed May 6, 2025

• opencvshap4 no Extensions

  #1657 closed May 6, 2025

• Setup

  #1652 closed May 6, 2025

• DllNotFoundException: Unable to load DLL "OpenCvSharpExtern"

  #1558 closed May 6, 2025

• Where is Rect.Empty

  #1655 closed May 6, 2025

• how to split r,g,b channel image from Mat data pointer

  #1653 closed May 6, 2025

• opencvsharp4.wpfextensions is missing NuGet package README file

  #1651 closed May 6, 2025

• opencvsharp4.windows is missing NuGet package README file

  #1650 closed May 6, 2025

• opencvsharp4.extensions is missing NuGet package README file

  #1649 closed May 6, 2025

• opencvsharp4.runtime.win is missing NuGet package README file

  #1648 closed May 6, 2025

• opencvsharp4 is missing NuGet package README file

  #1647 closed May 6, 2025

• Feature Request EstimateAffine3D

  #1646 closed May 6, 2025

• MatchTemplate results are inconsistent or incorrect

  #1632 closed May 6, 2025

• Hi I have a problem Exception Info: System.AccessViolationException at OpenCvSharp.Internal.NativeMethods.core_Mat_copyTo_toMat1(IntPtr, IntPtr)

  #1643 closed May 6, 2025

• Feature request: Lite/mini version of opencv4?

  #1592 closed May 6, 2025

• Cannot find OpenCVSharp4 runtime for Apple M2

  #1555 closed May 6, 2025

• Parameters for EstimateTransform(IEnumerable<Mat> images, Rect[][] rois)

  #1636 closed May 6, 2025

• Need Help for Warpping and Deskewing

  #1635 closed May 6, 2025

• Does an LMSolver equivalent exist in OpenCvSharp?

  #1634 closed May 6, 2025

• OpenCV Wrapper Bug: Zero Frame Rate and Count with Special Characters in Filename

  #1633 closed May 6, 2025

• Whether there are plans to implement open3D

  #1631 closed May 6, 2025

• How to reflect changes in the opencvsharp on opencv_files?

  #1627 closed May 6, 2025

• [Error]System.DllNotFoundException

  #1625 closed May 6, 2025

• PNG Images isn't working for osx arm

  #1620 closed May 6, 2025

• OpenCvSharpExtern 编译错误

  #1597 closed May 6, 2025

• How to use FileStorage class?

  #1610 closed May 6, 2025

• VideoCapture opens wrong camera

  #1619 closed May 6, 2025

• Issue on arm64

  #1593 closed May 6, 2025

• Build for android

  #1595 closed May 6, 2025

• PNG file cannot be converted to Mat using OpenCvSharp4.runtime.wasm

  #1584 closed May 6, 2025

• Cv2.CvtColor has very low chance CRASH

  #1608 closed May 6, 2025

• the downloaded video did not have markers

  #1605 closed May 6, 2025

• nuget market

  #1604 closed May 6, 2025

• Can't seem to generate contours

  #1606 closed May 6, 2025

• CvAruco.interpolateCornersCharuco missing?

  #1603 closed May 6, 2025

• Missing dll files gives memory exception not a missing dll exception

  #1602 closed May 6, 2025

• EstimateAffine2D can't find right answer

  #1599 closed May 6, 2025

• InteropServices.SEHException: OpenCvSharp.Dnn.Net.ReadNet

  #1598 closed May 6, 2025

• wechatQrcode module have no the method setScaleFactor

  #1596 closed May 6, 2025

• Memory usage has doubled in using a Darknet DNN model

  #1594 closed May 6, 2025

• .NET Framework 4.8 can't open video, the same code .NET6 is ok

  #1559 closed May 6, 2025

• [Question] How to use InputOutputArray as InputArray?

  #1568 closed May 6, 2025

• Read CascadeClassifier from string in memory (instead of file)

  #1591 closed May 6, 2025

• System.TypeInitializationException: The type initializer for 'OpenCvSharp.Internal.NativeMethods'

  #1563 closed May 6, 2025

• cvConvertScale

  #1589 closed May 6, 2025

• WarpAffine strange behaviour on NVIDIA

  #1586 closed May 6, 2025

2 Issues opened by 2 people

• .NET Version Update

  #1763 opened May 21, 2025

• Appliation that works under Windows 10 fails under Windows Server 2019

  #1760 opened May 5, 2025

4 Unresolved conversations

Sometimes conversations happen on old items that aren’t yet closed. Here is a list of all the Issues and Pull Requests with unresolved conversations.

• Debug Visualizer on Visual Studio 17.11+

  #1718 commented on May 6, 2025 • 0 new comments

• Linux ARM64 (Native bindings for Linux ARM64)

  #1644 commented on May 6, 2025 • 0 new comments

• Broken OpenCvSharp4_.runtime.ubuntu.20.04-x64 nuget package

  #1707 commented on May 6, 2025 • 0 new comments

• Fix name misspelling in README.md

  #1757 commented on May 6, 2025 • 0 new comments