Update medianomaly.py

medianomaly.py

@@ -250,6 +250,8 @@ class Medianomaly(datasets.GeneratorBasedBuilder):
             for idx, row in df.iterrows():
                 image_id = row["image"]
                 image_path = os.path.join(img_dir, f"{image_id}.jpg")
+                if not os.path.exists(image_path):
+                    continue
                 label_vector = row.iloc[1:].astype(int).tolist()
 
                 yield idx, {