.NET 6.0 .NET Core 3.1 .NET Standard 2.0 .NET Framework 4.8
Install-Package OpenCvSharp4 -Version
dotnet add package OpenCvSharp4 --version
<PackageReference Include="OpenCvSharp4" Version="" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add OpenCvSharp4 --version
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#r "nuget: OpenCvSharp4,"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install OpenCvSharp4 as a Cake Addin
#addin nuget:?package=OpenCvSharp4&version=

// Install OpenCvSharp4 as a Cake Tool
#tool nuget:?package=OpenCvSharp4&version=
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

OpenCV wrapper for .NET. Since this package includes only core managed libraries, another package of native bindings for your OS is required (OpenCvSharp4.runtime.*).

Product Versions
.NET net5.0 net5.0-windows net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows
.NET Core netcoreapp2.0 netcoreapp2.1 netcoreapp2.2 netcoreapp3.0 netcoreapp3.1
.NET Standard netstandard2.0 netstandard2.1
.NET Framework net461 net462 net463 net47 net471 net472 net48
MonoAndroid monoandroid
MonoMac monomac
MonoTouch monotouch
Tizen tizen40 tizen60
Xamarin.iOS xamarinios
Xamarin.Mac xamarinmac
Xamarin.TVOS xamarintvos
Xamarin.WatchOS xamarinwatchos
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (60)

Showing the top 5 NuGet packages that depend on OpenCvSharp4:

Package Downloads

OpenCV 4.x wrapper. All-in-one package for Windows users.


OpenCvSharp WPF extension library.


OpenCV for VL


OpenCvSharp GDI+ extension library.


Dotnet core windows utility

GitHub repositories (11)

Showing the top 5 popular GitHub repositories that depend on OpenCvSharp4:

Repository Stars
.Net port of the original java-based barcode reader and generator library zxing
The world's simplest facial recognition api for .NET on Windows, MacOS and Linux
一款优雅的UWP文件管理器 | An elegant UWP Explorer
A Fast Scene Search Engine for Anime Series 'Gochuumon wa Usagi Desuka?'
.NET/C# binding for Baidu paddle inference library and PaddleOCR
Version Downloads Last updated 27,351 6/8/2022 110,734 12/31/2021 6,271 12/28/2021 9,944 12/7/2021 1,144 12/5/2021 82,816 8/21/2021 22,119 7/25/2021 123,182 4/4/2021 43,149 2/10/2021 1,876 2/8/2021 1,133 2/6/2021 16,371 1/24/2021 21,585 12/29/2020 4,081 12/26/2020 65,555 10/13/2020 35,396 9/16/2020 57,857 7/25/2020 34,771 7/8/2020 109,907 5/27/2020 47,336 4/21/2020 13,540 4/5/2020 61,356 2/8/2020 72,398 1/8/2020 8,914 12/23/2019 28,104 12/17/2019 32,214 11/10/2019 12,953 10/27/2019 832 10/25/2019 1,275 10/23/2019 1,713 10/18/2019 139,604 4/16/2019 22,889 3/26/2019 60,792 1/8/2019 3,746 12/25/2018