text: // Copyright 2013-2018 Dirk Lemstra <https://github.com/dlemstra/Magick.NET/>
  //
  // Licensed under the ImageMagick License (the "License"); you may not use this file except in
  // compliance with the License. You may obtain a copy of the License at
  //
  //   https://www.imagemagick.org/script/license.php
  //
  // 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.
  #pragma once
  
  MAGICK_NET_EXPORT const double ChannelPerceptualHash_GetHclpHuPhash(const ChannelPerceptualHash *, const size_t);
  
  MAGICK_NET_EXPORT const double ChannelPerceptualHash_GetSrgbHuPhash(const ChannelPerceptualHash *, const size_t);