Update testdata.py

testdata.py

@@ -103,6 +103,9 @@ class TestData(datasets.GeneratorBasedBuilder):
 
         idx = 0
         for gt_file in glob(os.path.join(annotation_dir, "*.txt")):
+            plates = []
+    f       faces = []
+    
             gt_relative_file = os.path.relpath(gt_file, annotation_dir)
             img_relative_path = gt_relative_file.replace(".txt", ".png")