Node.js REST API for OMR Processing

Aspose.OMR for Cloud is a REST API that helps you to perform optical mark recognition in the cloud. We provide a series of SDKs. Along with that, you can get binaries to start working immediately and recognize various OMR forms.

Developers can embed optical recognition in any type of application to extract data from images of tests, exams, questionnaires, surveys, etc. In the repository you can find examples on how to start using Aspose.OMR API in your project.

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 the 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).

Save OMR As

CSV

Read OMR Formats

JPEG, PNG, BMP, TIFF, PDF

Quickstart

You can perform tasks out of the box without writing a single line of code with our GUI client. You can also refer to the client documentation.

Requirements.

NodeJS v4+

Installation

• Clone aspose-omr-cloud with submodules:

git clone https://github.com/aspose-omr-cloud/aspose-omr-cloud-nodejs.git --recurse-submodules

• Run following script:

npm install && npm run-script build

Optional requirements

To take full advantage of Aspose.OMR for Cloud, asposestoragecloud is required. Just run npm install asposestoragecloud.

Usage

Receive Cloud Keys

Aspose.Cloud credentials are required to use Aspose.OMR for Cloud API. You can acquire App SID and App Key by registrating at Aspose Cloud Dashboard. It will take only a couple of minutes.

Update Submodules

Make sure you've cloned aspose-omr-cloud-demo-data submodule, that contains all data required to run demo.

In case you are missing submodules use the following git commands to initialize and update them:

git submodule init
git submodule update --remote --merge

Code example

You can check out OMR Demo project to get started with Aspose.OMR for Cloud.

Authorization

Library uses OAUTH2 internally

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