Update app.py

app.py

@@ -157,8 +157,8 @@ def remove_bg(fl, s, l, v, h, l_t):
     frame_c = (frame.astype(np.int16)-bg_diff).astype(np.uint8)
 
 
-    hsv = cv2.cvtColor(frame, cv2.COLOR_BGR2HSV)
-    hue_s = np.zeros_like(hsv)
+    hsv_ = cv2.cvtColor(frame_c, cv2.COLOR_BGR2HSV)
+    hue_s = np.zeros_like(hsv_)
     edges = cv2.Laplacian(cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY), cv2.CV_64F)
     blur_s = np.zeros_like(edges)
     for i in range(2, frame.shape[0]-2):
@@ -166,7 +166,7 @@ def remove_bg(fl, s, l, v, h, l_t):
             d = edges[i-2:i+2, j-2:j+2].var()
             blur_s[i,j] = d.astype(np.uint8)
             
-            d = hsv[i-1:i+1, j-1:j+1, 0].var()
+            d = hsv_[i-1:i+1, j-1:j+1, 0].var()
             hue_s[i,j] = (d*16).astype(np.uint8)
 
     print(fl)
@@ -177,7 +177,6 @@ def remove_bg(fl, s, l, v, h, l_t):
     print(np.average(blur_s))
     print(np.median(blur_s))
     #remove regions of low saturation and lightness (get scene without shadow)
-    hsv_ = cv2.cvtColor(frame_c, cv2.COLOR_BGR2HSV)
     print("saturation")
     print(np.average(hsv_[:,:,1]))
     print(np.median(hsv_[:,:,1]))