browser-image-hash

Browser image hash

This is browser image hash generator.

This library is made to generate the same hash as image-hash as much as possible.

Supported.

• difference hashing (dHash)

Feature Suuport.

• average hashing (aHash)
• perception hashing (pHash)
• wavelet hashing (wHash)

Installation

$ npm install browser-image-hash

Basic Using

import {DifferenceHashBuilder, Hash} from 'browser-image-hash';

document.addEventListener('DOMContentLoaded', async () => {
  const builder = new DifferenceHashBuilder();
  const targetURL = new URL('./example.jpg', window.location.href);
  const destHash = await builder.build(targetURL);
  const srcHash = new Hash('0111011001110000011110010101101100110011000100110101101000111000');

  if (srcHash.getHammingDistance(destHash) <= 10) {
     console.log('Resembles');
     return;
  }

  console.log('Different');
});

⚠️ Since this library uses canvas, please be careful of the same origin policy.

Allowing cross-origin use of images and canvas