Aspose.OMR-Cloud 20.2.0

Aspose.OMR Cloud SDK provides functionality for using Aspose.OMR for Cloud API to create, recognize and grade OMR forms such as test, survey, quiz, answer sheet - any type of document that includes bubbles as input.

Key features:
- recognize photos and scans
- process rotated images
- create template from text markup
- supports choice boxes, grids, barcodes, text elements

Install-Package Aspose.OMR-Cloud -Version 20.2.0
dotnet add package Aspose.OMR-Cloud --version 20.2.0
<PackageReference Include="Aspose.OMR-Cloud" Version="20.2.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Aspose.OMR-Cloud --version 20.2.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

.NET REST API for OMR Processing

This Cloud SDK enables you to perform Optical Mark Recognition (OMR) operations on human-marked data from within your cloud-based C#, ASP.NET & other .NET apps.

OMR Processing Features

  • Perform recognition of scanned photos and images for OMR operations.
  • Ability to perform OMR on rotated & perspective (within 25 deg) photos.
  • Extract & recognize human-marked data from scanned tests, exams, surveys etc.
  • Supports the export of OMR results to CSV file format.
  • Use textual markup to generate OMR templates, generate surveys and test sheets.
  • Availability of GUI application for managing OMR templates.
  • Specify number of OMR based questions & answers in the template.
  • Availability of GUI OMR editor as a cloud client.
  • Provide JSON rules to perform OMR answer grading.
  • Clip an area of interest from an image, save it as JPEG & perform OMR on it.
  • Perform highly accurate optical mark recognition (OMR).

Enhancements in Version 20.2

  • Minor metadata updates.

Save OMR As

CSV

Read OMR Formats

JPEG, PNG, BMP, TIFF, PDF

Getting Started with Aspose.OMR Cloud SDK for .NET

You do not need to install anything to get started with Aspose.OMR Cloud SDK for .NET. Just create an account at Aspose for Cloud and get your application information.

Simply execute Install-Package Aspose.OMR-Cloud from the Package Manager Console in Visual Studio to fetch & reference Aspose.OMR assembly in your project. If you already have Aspose.OMR Cloud SDK for .NET and want to upgrade it, please execute Update-Package Aspose.OMR-Cloud to get the latest version.

Please check the GitHub Repository for other common usage scenarios.

Use C# to Perform Optical Mark Recognition (OMR) on PNG Images

The following code sample demonstrates, how to perform Optical Mark Recognition (OMR) operation on an PNG image file using C# code:

// Please visit https://dashboard.aspose.cloud/#/apps to get your APIKEY & APPSID.
StorageApi storageApi = new StorageApi(APIKEY, APPSID);
OmrApi omrApi = new OmrApi(APIKEY, APPSID, BASEPATH);

string name = "AnswerSheet.png";

OMRFunctionParam param = new OMRFunctionParam();

param.FunctionParam = packedTemplateJson;

string versionId = "";
string storage = "";
storageApi.PutCreate(name, versionId, storage, System.IO.File.ReadAllBytes(pathToTheImage + name));

string folder = null;
Com.Aspose.OMR.Model.OMRResponse response = omrApi.PostRunOmrTask(name, "CorrectTemplate", param, storage, folder);
FileInfo[] resultFiles = response.Payload.Result.ResponseFiles;

Limitations

  • Recognition process works well with the bubbles which are at least 75% filled.
  • Works on perspective (side viewed/out of focus) & rotated images under certain conditions, e.g., rotation angle within 25 degrees.
  • OMR operation will show results only in text format.
  • Performing OCR operation is not supported for now.

Product Page | Documentation | Demo | API Reference | Examples | Blog | Free Support | Free Trial

.NET REST API for OMR Processing

This Cloud SDK enables you to perform Optical Mark Recognition (OMR) operations on human-marked data from within your cloud-based C#, ASP.NET & other .NET apps.

OMR Processing Features

  • Perform recognition of scanned photos and images for OMR operations.
  • Ability to perform OMR on rotated & perspective (within 25 deg) photos.
  • Extract & recognize human-marked data from scanned tests, exams, surveys etc.
  • Supports the export of OMR results to CSV file format.
  • Use textual markup to generate OMR templates, generate surveys and test sheets.
  • Availability of GUI application for managing OMR templates.
  • Specify number of OMR based questions & answers in the template.
  • Availability of GUI OMR editor as a cloud client.
  • Provide JSON rules to perform OMR answer grading.
  • Clip an area of interest from an image, save it as JPEG & perform OMR on it.
  • Perform highly accurate optical mark recognition (OMR).

Enhancements in Version 20.2

  • Minor metadata updates.

Save OMR As

CSV

Read OMR Formats

JPEG, PNG, BMP, TIFF, PDF

Getting Started with Aspose.OMR Cloud SDK for .NET

You do not need to install anything to get started with Aspose.OMR Cloud SDK for .NET. Just create an account at Aspose for Cloud and get your application information.

Simply execute Install-Package Aspose.OMR-Cloud from the Package Manager Console in Visual Studio to fetch & reference Aspose.OMR assembly in your project. If you already have Aspose.OMR Cloud SDK for .NET and want to upgrade it, please execute Update-Package Aspose.OMR-Cloud to get the latest version.

Please check the GitHub Repository for other common usage scenarios.

Use C# to Perform Optical Mark Recognition (OMR) on PNG Images

The following code sample demonstrates, how to perform Optical Mark Recognition (OMR) operation on an PNG image file using C# code:

// Please visit https://dashboard.aspose.cloud/#/apps to get your APIKEY & APPSID.
StorageApi storageApi = new StorageApi(APIKEY, APPSID);
OmrApi omrApi = new OmrApi(APIKEY, APPSID, BASEPATH);

string name = "AnswerSheet.png";

OMRFunctionParam param = new OMRFunctionParam();

param.FunctionParam = packedTemplateJson;

string versionId = "";
string storage = "";
storageApi.PutCreate(name, versionId, storage, System.IO.File.ReadAllBytes(pathToTheImage + name));

string folder = null;
Com.Aspose.OMR.Model.OMRResponse response = omrApi.PostRunOmrTask(name, "CorrectTemplate", param, storage, folder);
FileInfo[] resultFiles = response.Payload.Result.ResponseFiles;

Limitations

  • Recognition process works well with the bubbles which are at least 75% filled.
  • Works on perspective (side viewed/out of focus) & rotated images under certain conditions, e.g., rotation angle within 25 degrees.
  • OMR operation will show results only in text format.
  • Performing OCR operation is not supported for now.

Product Page | Documentation | Demo | API Reference | Examples | Blog | Free Support | Free Trial

Release Notes

Minor metadata updates

This package is not used by any popular GitHub repositories.

Version History

Version Downloads Last updated
20.2.0 99 2/18/2020
19.7.0 162 7/7/2019
1.0.3 548 5/31/2018
1.0.2 351 2/28/2018