Maybe I need to load everything into memory first

pmd.py

@@ -467,11 +467,14 @@ class VisualGenomeLoader(DatasetsLoader):
 
     def cast_to_pmd_features(self, row: Dict) -> List[Dict[str, Any]]:
         meta = {k: v for k, v in row.items() if k not in ["image", "regions"]}
+        image = row["image"]
+        # Maybe I need to load this into memory
+        image.load()
         rows = [
             {
                 "image_url": None,
                 # TODO @thomasw21 I believe this is slow as hell
-                "image": row["image"].crop(
+                "image": image.crop(
                     (
                         region["x"],
                         region["y"],
@@ -489,6 +492,7 @@ class VisualGenomeLoader(DatasetsLoader):
             }
             for region in row["regions"]
         ]
+        image.close()
         return rows