Update app.py

app.py

@@ -137,7 +137,9 @@ def infer(f_in, interpolation, fps_output):
     return final_vid, files
 
 
-def remove_bg(frame):
+def remove_bg(fr):
+    frame = cv2.imread(fr).astype(np.uint8)
+    
     b = 5
     #subtract background (get scene with shadow) and correct hue against light
     bg = cv2.medianBlur(frame, 255)