text: #ifndef SINGLE_ENCODER_NONE_FILTER_H
  #define SINGLE_ENCODER_NONE_FILTER_H
  
  #include "base_image_filter.h"
  
  namespace lmt
  {
  namespace filter
  {
  class NoneFilter final : public BaseImageFilter
  {
    private:
      cv_bridge::CvImagePtr filterImpl(const cv_bridge::CvImagePtr& inputImg) override;
  };
  }  // namespace filter
  }  // namespace lmt
  
  #endif  // SINGLE_ENCODER_NONE_FILTER_H
  