===========================paddle2onnx_params===========================
model_name:en_table_structure
python:python3.7
2onnx: paddle2onnx
--det_model_dir:./inference/en_ppocr_mobile_v2.0_table_structure_infer/
--model_filename:inference.pdmodel
--params_filename:inference.pdiparams
--det_save_file:./inference/en_ppocr_mobile_v2.0_table_structure_infer/model.onnx
--rec_model_dir:
--rec_save_file:
--opset_version:10
--enable_onnx_checker:True
inference:ppstructure/table/predict_structure.py --table_char_dict_path=./ppocr/utils/dict/table_structure_dict.txt
--use_gpu:True|False
--det_model_dir:
--rec_model_dir:
--image_dir:./ppstructure/docs/table/table.jpg