Update app.py

app.py

@@ -63,6 +63,8 @@ def run_grounding(input_image, grounding_caption, box_threshold, text_threshold)
 
     for i, (box, score, label) in enumerate(zip(result["boxes"], result["scores"], result["labels"])):
         # box is xyxy format [xmin, ymin, xmax, ymax]
+        if label.strip() == "":
+            continue
         xyxy = box.tolist()
         boxes.append(xyxy)
         labels.append(label)