TrainReader: reader_function: ppocr.data.rec.dataset_traversal,SimpleReader num_workers: 8 img_set_dir: ./train_data label_file_path: ./train_data/korean_train.txt EvalReader: reader_function: ppocr.data.rec.dataset_traversal,SimpleReader img_set_dir: ./train_data label_file_path: ./train_data/korean_eval.txt TestReader: reader_function: ppocr.data.rec.dataset_traversal,SimpleReader