Update app.py

app.py

@@ -37,7 +37,7 @@ async def predict(img: UploadFile = File(...)):
         image = Image.open(io.BytesIO(bytes_data)).convert("RGB")
         np_img = np.array(image)
 
-        results = model(np_img)
+        results = model(np_img, conf=0.40)
         result = results[0]
 
         # crack detection: check boxes