dart_imagehash library

A library for perceptual image hashing in Dart.

This library provides functionality to calculate various image hashes including Average hash (aHash), Perceptual hash (pHash), Difference hash (dHash), Wavelet hash (wHash).

Example:

import 'package:imagehash/imagehash.dart';
import 'package:image/image.dart' as img;

// Calculate average hash from an image
var image = img.decodeImage(File('test.png').readAsBytesSync());
var hash = ImageHasher.averageHash(image!);
print(hash);

// Calculate perceptual hash
var phash = ImageHasher.perceptualHash(image);
print(phash);

// Compare two hashes
var otherHash = ImageHasher.averageHash(img.decodeImage(File('other.png').readAsBytesSync())!);
print(hash == otherHash); // Boolean comparison
print(hash - otherHash); // Hamming distance

// Calculate hash directly from bytes
var bytes = File('test.png').readAsBytesSync();
var hashFromBytes = ImageHasher.averageHashFromBytes(bytes);
print(hashFromBytes);

dart_imagehash library

Classes

dart_imagehash package

dart_imagehash library