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

``bash
$ npm install browser-image-hash
`

Basic Using

`typescript
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