data/samples/README.md

# Sample Data

Place your handwriting and signature images here.

## Expected Files

| Filename pattern | Used by |
|-----------------|---------|
| `handwritten_text_01.png`, `_02.png`, ... | Labs 02, 05, 06 |
| `signature_genuine_01.png`, `_02.png`, ... | Labs 03, 04 |
| `signature_forged_01.png`, `_02.png`, ... | Lab 03 |
| `document_with_signature_01.png`, ... | Lab 04 |
| `writer_01/sample_01.png`, ... | Lab 05 (writer identification) |

## Tips

- Scan at **300 DPI or higher** for best results.
- Use **PNG** format (lossless) to avoid JPEG compression artefacts.
- Ensure signatures are on a **white background**.
- For writer identification, provide at least **5–10 samples per writer**.

## Synthetic Fallback

If no real images are present, every notebook generates synthetic samples automatically so the code runs end-to-end without any data.