Aspose.OMR 22.6.0

.NET 5.0 .NET Standard 2.0 .NET Framework 4.0
Install-Package Aspose.OMR -Version 22.6.0
dotnet add package Aspose.OMR --version 22.6.0
<PackageReference Include="Aspose.OMR" Version="22.6.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Aspose.OMR --version 22.6.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#r "nuget: Aspose.OMR, 22.6.0"
#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 Aspose.OMR as a Cake Addin
#addin nuget:?package=Aspose.OMR&version=22.6.0

// Install Aspose.OMR as a Cake Tool
#tool nuget:?package=Aspose.OMR&version=22.6.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

.NET API to Perform OMR

Version 22.5.0 Nuget


Product Page | Docs | Demos | API Reference | Examples | Blog | Search | Free Support | Temporary License

It is a standalone on-premise API that helps in recognizing the human-marked data from images of scanned documents, surveys, questionnaires, quizzes, and examination papers.

Aspose.OMR for .NET not only acts as an Optical Mark Recognition engine. It also provides a handy graphical control that can be used for manual tuning of the threshold and markup to see changes in real-time.

OMR API Features

  • Recognition of scanned images and photos.
  • Ability to process rotated and perspective (side viewed) images.
  • Recognize data from tests, exams, questionnaires, surveys, etc.
  • High accuracy rate & ability to export the results in CSV format.
  • Create OMR templates.

Read Images for OMR


Save OMR Results As


Platform Independence

Aspose.OMR for .NET API is written in C# and can be used to build 32-bit and 64-bit applications targeting .NET Framework 4.0 and higher.

Get Started

Are you ready to give Aspose.OMR for .NET a try? Simply execute Install-Package Aspose.OMR from Package Manager Console in Visual Studio to fetch the NuGet package. If you already have Aspose.OMR for .NET and want to upgrade the version, please execute Update-Package Aspose.OMR to get the latest version.

Simply execute the below code snippet to see how Aspose.OMR API performs in your environment or please check the GitHub Repository for other common usage scenarios.

Perform OMR on a JPG Image & Get Results in the CSV format

// recognize image and receive result
RecognitionResult result = templateProcessor.RecognizeImage(dir + "template.jpg");
// export results as a CSV string
string csvResult = result.GetCsv();

Product Page | Docs | Demos | API Reference | Examples | Blog | Search | Free Support | Temporary License

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 net40 net403 net45 net451 net452 net46 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 (2)

Showing the top 2 NuGet packages that depend on Aspose.OMR:

Package Downloads

Aspose.Total for .NET is the most complete package of all .NET file format APIs offered by Aspose. It empowers developers to create, edit, render, print and convert between a wide range of popular document formats within any .NET, C#, ASP.NET and VB.NET applications.


Conholdate.Total for .NET is a complete package to work with a large number of file formats from Microsoft Word, Excel, PowerPoint, Outlook, Project, Visio, Adobe Acrobat, Illustrator, Photoshop, AutoCAD, OpenOffice and many more. Conholdate.Total for .NET allows you to use any API released under Aspose and GroupDocs for .NET in order to create, convert, read, edit, update and print popular document formats. Moreover, you may view, annotate, watermark, assemble, classify, search, redact, parse, merge and compare documents without needing to install the native applications. It helps you in file format manipulation and document automation via simple API. Conholdate.Total for .NET also includes specialized APIs to read and create barcodes, extract text from images using OCR as well as extract human marked data from questioners, surveys, quizzes, MCQ papers and feedback forms.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last updated
22.6.0 388 6/18/2022
22.5.0 1,511 5/22/2022
22.4.0 3,400 4/19/2022
22.3.0 7,663 3/28/2022
22.2.0 1,666 2/28/2022
22.1.1 409 1/29/2022
22.1.0 95 1/29/2022
21.12.0 2,960 12/25/2021
21.11.0 2,034 11/29/2021
21.10.0 1,361 10/18/2021
21.9.0 169 10/6/2021
21.8.0 4,856 8/24/2021
21.7.0 2,302 7/24/2021
21.6.0 2,377 6/30/2021
21.5.0 3,519 6/1/2021
21.4.0 7,287 5/1/2021
21.3.0 2,094 4/1/2021
21.2.1 1,820 2/27/2021
21.2.0 2,115 2/25/2021
20.6.0 6,611 6/30/2020
20.4.0 6,973 4/30/2020
20.3.0 1,462 3/26/2020
19.9.0 4,379 9/30/2019
19.8.0 427 8/31/2019
19.7.0 517 7/31/2019
19.4.0 623 4/30/2019