# Copyright 2023 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.

import cv2
import fire
from imwatermark import WatermarkDecoder


def testit(img_path):
    bgr = cv2.imread(img_path)
    decoder = WatermarkDecoder('bytes', 136)
    watermark = decoder.decode(bgr, 'dwtDct')
    try:
        dec = watermark.decode('utf-8')
    except:
        dec = "null"
    print(dec)


if __name__ == "__main__":
    fire.Fire(testit)