update draw box

tokenization_qwen.py

@@ -410,13 +410,11 @@ class QWenTokenizer(PreTrainedTokenizer):
         if image is None:
             return None
         if image.startswith("http://") or image.startswith("https://"):
-            image = Image.open(requests.get(image, stream=True).raw)
+            image = Image.open(requests.get(image, stream=True).raw).convert("RGB")
+            h, w = image.height, image.width
         else:
-            # image = Image.open(image)
             image = plt.imread(image)
-        # h, w = image.height, image.width
-        # image = image.convert("RGB")
-        h, w = image.shape[0], image.shape[1]
+            h, w = image.shape[0], image.shape[1]
         visualizer = Visualizer(image)
 
         boxes = self._fetch_all_box_with_ref(response)