deduplicate

app.py

@@ -120,13 +120,15 @@ if __name__ == "__main__":
         images = []
         captions = []
         similarities = []
-        
+
+        visited_images = set()
         for similarity, caption, image_idx in results:
-            image = ds[image_idx]['image']
-            images.append(image)
+            if image_idx not in visited_images:
+                visited_images.add(image_idx)
+                images.append(ds[image_idx]['image'])
             captions.append(caption)
             similarities.append(f"{similarity:.4f}")
-            
+
         return images, captions, similarities
 
     demo = gr.Interface(