update image padding for xai

explanations.py

@@ -11,7 +11,7 @@ from labels import lookup_140
 from app import preprocess_image
 BATCH_SIZE = 1
 
-def show(img, p=False,output_size, **kwargs):
+def show(img, output_size,p=False, **kwargs):
     img = np.array(img, dtype=np.float32)
 
     img = preprocess_image(img, output_size=output_size)