mindspore/model_zoo/official/cv/dpn/export.py

# Copyright 2021 Huawei Technologies Co., Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ============================================================================
"""Export DPN"""
import argparse
import numpy as np

from mindspore import Tensor, context, load_checkpoint, load_param_into_net, export

from src.dpn import dpns
from src.config import config

parser = argparse.ArgumentParser(description="export dpn")
parser.add_argument("--device_id", type=int, default=0, help="device id")
parser.add_argument("--ckpt_file", type=str, required=True, help="dpn ckpt file.")
parser.add_argument("--width", type=int, default=224, help="input width")
parser.add_argument("--height", type=int, default=224, help="input height")
parser.add_argument("--file_name", type=str, default="dpn", help="dpn output file name.")
parser.add_argument("--file_format", type=str, choices=["AIR", "ONNX", "MINDIR"],
                    default="MINDIR", help="file format")
parser.add_argument("--device_target", type=str, choices=["Ascend", "GPU", "CPU"], default="Ascend",
                    help="device target")
args = parser.parse_args()

context.set_context(mode=context.GRAPH_MODE, device_target=args.device_target)
if args.device_target == "Ascend":
    context.set_context(device_id=args.device_id)

if __name__ == "__main__":
    # define net
    backbone = config.backbone
    num_classes = config.num_classes
    net = dpns[backbone](num_classes=num_classes)

    # load checkpoint
    param_dict = load_checkpoint(args.ckpt_file)
    load_param_into_net(net, param_dict)
    net.set_train(False)

    image = Tensor(np.zeros([config.batch_size, 3, args.height, args.width], np.float32))
    export(net, image, file_name=args.file_name, file_format=args.file_format)