fix a few small upload bugs

helpers/images.py

@@ -9,6 +9,7 @@ from PIL import Image, ImageFile
 from blake3 import blake3
 
 import pydicom
+from pydicom.errors import InvalidDicomError
 import sys
 import glob
 
@@ -178,7 +179,13 @@ def get_image_dicom_hash(img, dataset=None, hash_type="md5", direct_pixel_data=T
             raise NotImplemented
 
     if direct_pixel_data:
-        hasher.update(dataset.PixelData)
+        try:
+            hasher.update(dataset.PixelData)
+        except AttributeError as e:
+            print("Error getting pixel data hash from dataset")
+            print(dataset)
+            raise InvalidDicomError("Error getting pixel data hash from dataset")
+
     else:
         first = True
         for i in dataset.pixel_array.astype(str).flatten():