Barcode Reader

This barcode reader is a Node.js C++ addon wrapper over the open source ZBar and OpenCV libraries.

It works with a static image files, supports multiple barcodes in the image and detects barcode types.

Requirements

ZBar code reader and OpenCV have to be installed on your machine.

Installation

Before npm install you need to install packages.

For linux users:

    apt-get install libzbar0 libzbar-dev
    apt-get install python3-opencv libopencv-dev
or
    yum install zbar zbar-devel
    yum install opencv opencv-devel

After this install Barcode Reader

    npm i node-zbardecoder

Usage

const bardecoder = require('node-zbardecoder');

const result = JSON.parse(bardecoder.decode('image.jpg'));
console.log(result);

/*
{
  results: [
    { type: 'CODE-128', data: 'ARD000083' },
    { type: 'CODE-128', data: 'ARD000066' }
  ]
} 
*/

Recommendations

For better results use images no larger then 1500px on the long side and images with sharp and large barcodes.

See the test folder for example.