File duplication / similarity checker

This small script computes perceptual hashes for three example images and prints similarity percentages.

Quick start (Windows / PowerShell):

python -m venv .venv
.\.venv\Scripts\Activate.ps1
pip install -r requirements.txt
python app.py

If you see errors about missing images, ensure the images/ directory is next to app.py and contains 1.jpg, add-a-line.png, and whatsapp.jpg.