Basic Image Comparison

Compare sample images using different perceptual hashing algorithms. Select images and an algorithm to see how similar they are.

Choose Algorithm

First Image

Second Image

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Select Images to Compare

Choose two images and an algorithm to see their similarity comparison.

Code Example

import 'package:dart_imagehash/dart_imagehash.dart';

// Load images
final image1 = decodeImage(File('image1.jpg').readAsBytesSync())!;
final image2 = decodeImage(File('image2.jpg').readAsBytesSync())!;

// Calculate ahash hash
final hash1 = ImageHasher.averageHash(image1);
final hash2 = ImageHasher.averageHash(image2);

// Compare hashes
final distance = hash1 - hash2;
final similarity = 100.0 * (1.0 - (distance / hash1.bits.length));

print('Hash 1: $hash1');
print('Hash 2: $hash2');
print('Distance: $distance');
print('Similarity: ${similarity.toStringAsFixed(2)}%');

About the Sample Images

cat1.JPG

Original image used as the baseline for comparison.

cat1-modified.JPG

Modified version of cat1.JPG with cropping and added drawings.

cat2.JPG

Completely different image for comparison.