Update app.py

app.py

@@ -12,7 +12,7 @@ def detect_faces(img, size, neighbours, scale):
     gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
 
     faceRects = face_detector.detectMultiScale(
-        gray, scaleFactor=scale, minNeighbors=neighbours, minSize=(size, size),
+        gray, scaleFactor=1.1, minNeighbors=5, minSize=(size, size),
         flags=cv2.CASCADE_SCALE_IMAGE)
 
     box_data = []