Update app.py

app.py

@@ -155,8 +155,8 @@ def remove_bg(fl):
     bg_diff = (bg-bg_gray).astype(np.int16)
     frame_c = (frame.astype(np.int16)-bg_diff).astype(np.uint8)
     
-    #remove regions of low saturation (get scene without shadow)
-    m = cv2.inRange(cv2.cvtColor(frame_c, cv2.COLOR_RGB2HSV), np.array([0,0,0]), np.array([180,32,256]))
+    #remove regions of low saturation and lightness (get scene without shadow)
+    m = cv2.inRange(cv2.cvtColor(frame_c, cv2.COLOR_RGB2HSV), np.array([0,0,0]), np.array([180,32,127]))
     frame[m>0] = (127,127,127)
     frame = cv2.medianBlur(frame, b)