Update app.py

app.py

@@ -77,6 +77,7 @@ def predict(image_url:str, score_threshold: float,
 
     # 将图片内容转换为Pillow.Image对象
     image = Image.open(BytesIO(response.content))
+    image = image.convert("RGB")
     rawimage = image
     _, height, width, _ = model.input_shape
     image = np.asarray(image)