text: // MIT License
  //
  // Copyright (c) 2020 Paweł Adamski
  //
  // Permission is hereby granted, free of charge, to any person obtaining a copy
  // of this software and associated documentation files (the "Software"), to deal
  // in the Software without restriction, including without limitation the rights
  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  // copies of the Software, and to permit persons to whom the Software is
  // furnished to do so, subject to the following conditions:
  //
  // The above copyright notice and this permission notice shall be included in all
  // copies or substantial portions of the Software.
  //
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  // SOFTWARE.
  
  #include "medianblur.h"
  #include <opencv2/imgproc.hpp>
  
  namespace spaghetti::elements {
  MedianBlur::MedianBlur()
    : Element{}
  {
    setMinInputs(2);
    setMaxInputs(2);
    setMinOutputs(1);
    setMaxOutputs(1);
  
    addInput(ValueType::eMatrix, "Image", IOSocket::eCanHoldMatrix | IOSocket::eCanChangeName);
    addInput(ValueType::eInt, "kSize", IOSocket::eCanHoldInt | IOSocket::eCanChangeName);
    addOutput(ValueType::eMatrix, "Image", IOSocket::eCanHoldMatrix | IOSocket::eCanChangeName);
  }
  
  void MedianBlur::calculate()
  {
    auto sourceImage = m_inputs[0].getValue<cv::Mat>();
  
    if (!sourceImage.empty()) {
      auto kSize = m_inputs[1].getValue<int>();
      cv::Mat convertedImage{};
  
      if (kSize % 2 == 0) kSize--;
      if (kSize < 3) kSize = 3;
  
      cv::medianBlur(sourceImage, convertedImage, kSize);
      m_outputs[0].setValue(convertedImage);
    }
  }
  
  } // namespace spaghetti::elements
  