.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 (58)

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


Dotnet core windows utility


Automation test extension for API/Web/Mobile/Performance with enabled dotnet core support and other features. This package includes the AutoTestExtras framework assembly, which is referenced by your automation tests.

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?'
A collection of small samples using MaterialDesignInXaml.
Version Downloads Last updated 9,382 6/8/2022 93,011 12/31/2021 4,894 12/28/2021 9,373 12/7/2021 1,093 12/5/2021 80,132 8/21/2021 21,197 7/25/2021 117,495 4/4/2021 41,236 2/10/2021 1,843 2/8/2021 1,104 2/6/2021 15,330 1/24/2021 20,484 12/29/2020 3,789 12/26/2020 64,554 10/13/2020 34,199 9/16/2020 55,679 7/25/2020 31,083 7/8/2020 104,582 5/27/2020 45,960 4/21/2020 13,164 4/5/2020 60,814 2/8/2020 71,006 1/8/2020 8,702 12/23/2019 27,571 12/17/2019 31,321 11/10/2019 12,836 10/27/2019 818 10/25/2019 1,262 10/23/2019 1,680 10/18/2019 135,389 4/16/2019 22,418 3/26/2019 59,672 1/8/2019 3,618 12/25/2018