Bird Dataset - Image Naming Rules
This file explains the image naming in this folder.
1. Naming Format
 - All images: {idx}_{type}.png
 - idx: Number (0-65) → Unique ID for the same bird's images
 - type: 3 fixed values (see below) → Image role
 - .png: Fixed format

2. Type Meaning
 - lq = Low-Quality → Degraded input (model input); hq = High-Quality → Clear ground truth (loss/evaluation); ref = Reference → Clear guide image (enhancement)

3. Example
 - Same bird (idx=0): 0_lq.png (input) + 0_hq.png (truth) + 0_ref.png (ref)
4. Quick Info
 - Size: All 512×512
 - Total: 66 pairs (idx 0-65) → 198 images