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# imgdd: Image DeDuplication
`imgdd` is a performance-first perceptual hashing library that combines Rust's speed with Python's accessibility, making it perfect for handling large datasets. Designed to quickly process nested folder structures, commonly found in image datasets.
## Features
- **Multiple Hashing Algorithms**: Supports `aHash`, `dHash`, `mHash`, `pHash`, `wHash`.
- **Multiple Filter Types**: Supports `Nearest`, `Triangle`, `CatmullRom`, `Gaussian`, `Lanczos3`.
- **Identify Duplicates**: Quickly identify duplicate hash pairs.
- **Simplicity**: Simple interface, robust performance.
## Why imgdd?
`imgdd` has been inspired by [imagehash](https://github.com/JohannesBuchner/imagehash) and aims to be a lightning-fast replacement with additional features. To ensure enhanced performance, `imgdd` has been benchmarked against `imagehash`. In Python, **imgdd consistently outperforms imagehash by ~60%–95%**, demonstrating a significant reduction in hashing time per image.
---
# Quick Start
## Installation
```bash
pip install imgdd
```
## Usage Examples
### Hash Images
```python
import imgdd as dd
results = dd.hash(
path="path/to/images",
algo="dhash", # Optional: default = dhash
filter="triangle" # Optional: default = triangle
sort=False # Optional: default = False
)
print(results)
```
### Find Duplicates
```python
import imgdd as dd
duplicates = dd.dupes(
path="path/to/images",
algo="dhash", # Optional: default = dhash
filter="triangle", # Optional: default = triangle
remove=False # Optional: default = False
)
print(duplicates)
```
## Supported Algorithms
- **aHash**: Average Hash
- **mHash**: Median Hash
- **dHash**: Difference Hash
- **pHash**: Perceptual Hash
- **wHash**: Wavelet Hash
## Supported Filters
- `Nearest`, `Triangle`, `CatmullRom`, `Gaussian`, `Lanczos3`
## Contributing
Contributions are always welcome! 🚀
Found a bug or have a question? Open a GitHub issue. Pull requests for new features or fixes are encouraged!
## Similar projects
- https://github.com/JohannesBuchner/imagehash
- https://github.com/commonsmachinery/blockhash-python
- https://github.com/acoomans/instagram-filters
- https://pippy360.github.io/transformationInvariantImageSearch/
- https://www.phash.org/
- https://pypi.org/project/dhash/
- https://github.com/thorn-oss/perception (based on imagehash code, depends on opencv)
- https://docs.opencv.org/3.4/d4/d93/group__img__hash.html