Update app.py

app.py

@@ -12,7 +12,7 @@ import cv2
 from torchvision.transforms.functional import to_pil_image
 import matplotlib.pyplot as plt
 import math
-
+from datetime import datetime
 # --------- Globals --------- #
 CHARS = string.ascii_uppercase + string.digits
 CHAR2IDX = {c: i + 1 for i, c in enumerate(CHARS)}