UniPercept-lituus
Perceptual image hashing and similarity search backed by the native UniPercept engine.
pip install UniPercept-lituus
The installed module is named unipercept:
import unipercept
left = unipercept.phash("left.jpg")
right = unipercept.phash("right.jpg")
print(unipercept.to_hex(left))
print(unipercept.hamming(left, right))
print(unipercept.similarity(left, right))
What it provides
- aHash, dHash and fixed-point DCT pHash as 64-bit integers;
- variable-size blockhash signatures;
- decoding from memory or files through UniImage;
- grayscale conversion and deterministic resize kernels;
- a BK-tree for Hamming-radius lookup;
- wheels containing the native UniPercept library.
tree = unipercept.BkTree()
tree.insert(100, left)
tree.insert(101, right)
for image_id, distance in tree.query(left, radius=5):
print(image_id, distance)
For an already decoded RGB or RGBA buffer:
gray = unipercept.to_grayscale(rgb_bytes, width, height, channels=3)
small = gray.resize(32, 32)
signature = small.phash()
Perceptual hashes are similarity signatures, not cryptographic hashes. Use them to select candidates and perform an application-specific confirmation when false positives matter.
Building from source
An sdist build requires Nim and Nimble on PATH, plus a supported C compiler.
From a repository checkout:
nimble pyLib
cd py
python -m pip install -e .
python -m pytest -q
python setup.py build_ext --inplace remains available as a direct extension
rebuild command.
1 maintainer
Metadata
1 maintainer
Release files for UniPercept-lituus 1.0.1
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| unipercept_lituus-1.0.1.tar.gz | 216.6 kB | Details |
Built distributions (wheels)
Total release size: 10.3 MB
Release files / unipercept_lituus-1.0.1.tar.gz
| Download URL | unipercept_lituus-1.0.1.tar.gz |
|---|---|
| Size | 216.6 kB |
| Tags | Source |
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| Size | 423.7 kB |
| Tags | CPython 3.14 Windows x86-64 |
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| Size | 1.1 MB |
| Tags | CPython 3.14 Linux glibc 2.34+ x86-64 |
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