Update app.py

app.py

@@ -18,8 +18,8 @@ def inference(img):
   #mask = np.dstack([mask, mask, mask]) / 255
   #out = img * mask
 
-  #out = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY ) # grayscale
-  out = cv2.adaptiveThreshold(img,255,cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY,31,3)
+  gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY ) # grayscale
+  out = cv2.adaptiveThreshold(gray,255,cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY,31,3)
 
     
   #kernel = cv2.getStructuringElement(cv2.MORPH_RECT, kernelSize)