diff --git a/Face_Detect with borders.py b/Face_Detect with borders.py
index 24dc7df..7cc2148 100644
--- a/Face_Detect with borders.py	
+++ b/Face_Detect with borders.py	
@@ -6,6 +6,12 @@ import time
 import os
 import datetime
 
+def dir_path(string):
+    if os.path.exists(string):
+        return string
+    else:
+        raise NotADirectoryError(string)
+
 def init_argparse() -> argparse.ArgumentParser:
     parser = argparse.ArgumentParser(
         prog="FaceDetection",
@@ -22,7 +28,7 @@ def init_argparse() -> argparse.ArgumentParser:
         "-o", "--output", action='store_true', help="show the resultant directions"
     )
     parser.add_argument(
-        "-f", "--file", nargs="?", help="File to scan instead of using the camera. Useful for generating training data"
+        "-f", "--file", type=dir_path, nargs="?", help="File to scan instead of using the camera. Useful for generating training data"
     )
     parser.add_argument(
         "-s", "--no-screen", action='store_true', help="Do not show the successful frames"
@@ -72,7 +78,10 @@ def draw_dashboard(keep_stat_line = False):
 parser = init_argparse()
 args = parser.parse_args()
 
-cap = cv2.VideoCapture(0, cv2.IMREAD_GRAYSCALE) # instead of grayscale you can also use -1, 0, or 1.
+if args.file:
+    cap = cv2.VideoCapture(args.file)
+else:
+    cap = cv2.VideoCapture(0, cv2.IMREAD_GRAYSCALE) # instead of grayscale you can also use -1, 0, or 1.
 faceCascade = cv2.CascadeClassifier(r"./cascades/lbpcascade_frontalface.xml") # CHECK THIS FIRST TROUBLE SHOOTING
 faceCascade_default = cv2.CascadeClassifier(r"./cascades/haarcascade_frontalface_default.xml")
 faceCascade_alt = cv2.CascadeClassifier(r"./cascades/haarcascade_frontalface_alt.xml")