Update utils.py

utils.py

@@ -561,7 +561,7 @@ def display_images(images, titles=None, cols=4, cmap=None, norm=None,
     norm: Optional. A Normalize instance to map values to colors.
     interpolation: Optional. Image interpolation to use for display.
     """
-    image = np.array(image)
+    image = np.array(images)
     titles = titles if titles is not None else [""] * len(images) 
     rows = len(images) // cols + 1
     plt.figure(figsize=(14, 14 * rows // cols))