fix: image representation as np.ndarray

generated-usa-passeports-dataset.py

@@ -1,6 +1,7 @@
 import datasets
 import PIL.Image
 import PIL.ImageOps
+import numpy as np
 
 _CITATION = """\
 @InProceedings{huggingface:dataset,
@@ -95,7 +96,7 @@ def load_image_file(file, mode='RGB'):
 
     img = img.convert(mode)
 
-    return img
+    return np.array(img)
 
 
 class GeneratedUsaPasseportsDataset(datasets.GeneratorBasedBuilder):