Update api_app.py

api_app.py

@@ -216,7 +216,7 @@ async def startup_event():
 @app.post("/predict/", response_model=List[PredictionResult])
 async def predict_images(
     files: List[UploadFile] = File(...),
-    colorfulness_threshold: float = 15.0,
+    colorfulness_threshold: float = 2.0,
     uniformity_threshold: float = 10.0,
     aspect_ratio_min: float = 0.4,
     aspect_ratio_max: float = 2.5,