Update README.md

README.md

@@ -22,7 +22,7 @@ All samples are stored in a Hugging Face-compatible parquet file at `data/<split
    ds = load_dataset('path/to/this/folder', split='train')
    sample = ds[0]
    ``
-   `sample["preview"]` loads directly as a PIL image; `sample["raw_image_path"]` points to the higher-quality file if needed.
+   `sample["preview"]` loads directly as a compressed PIL image; `sample["raw_image_path"]` points to the higher-quality file for inference.
 3. Use the metadata to drive evaluation logic, e.g., compute city-level accuracy, filter by `data_type`, or inspect specific regions.
 
 ## Notes