fix: image open bug

portrait_and_26_photos.py

@@ -1,3 +1,5 @@
+import io
+
 import datasets
 import pandas as pd
 
@@ -93,7 +95,7 @@ class PortraitAnd26Photos(datasets.GeneratorBasedBuilder):
             data = {
                 row[5]: {
                     'path': row[6],
-                    'bytes': row[7]
+                    'bytes': io.BytesIO(row[7])
                 } for row in annotation.itertuples()
             }