Update app.py

app.py

@@ -46,6 +46,8 @@ def infer(image_in):
     img = cv2.imread(image_in)
 
     contours, hierarchy = cv2.findContours(preprocess(img), cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
+    print(f"contours: {contours}")
+    print(f"hierarchy: {hierarchy}")
 
     for cnt in contours:
         peri = cv2.arcLength(cnt, True)
@@ -53,6 +55,10 @@ def infer(image_in):
         hull = cv2.convexHull(approx, returnPoints=False)
         sides = len(hull)
 
+        print(f"""
+        peri: {peri} | approx: {approx} | hull: {hull} | sides: {sides}
+        """)
+
         if 6 > sides > 3 and sides + 2 == len(approx):
             arrow_tip = find_tip(approx[:,0,:], hull.squeeze())
             if arrow_tip: