abstract_feature.h

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#ifndef abstract_feature_h_DEFINED
#define abstract_feature_h_DEFINED

#include <ros/common.h> // include ROS_ASSERT
#include <opencv2/core/core.hpp>
#include <opencv2/objdetect/objdetect.hpp>

namespace cpl_visual_features
{
template<class descriptor> class AbstractFeature
{
 public:

  virtual void operator()(cv::Mat& img, cv::Rect& window) = 0;

  virtual descriptor getDescriptor() const = 0;

  virtual descriptor extractDescriptor(cv::Mat& img, cv::Rect& window)
  {
    (*this)(img, window);
    return this->getDescriptor();
  }
  typedef descriptor Descriptor;

  template <class T> float sum(std::vector<T>& vect)
  {
    float val_sum = 0;
    for (unsigned int i = 0; i < vect.size(); ++i)
    {
      val_sum += vect[i];
    }
    return val_sum;
  }

};
}
#endif // abstract_feature_h_DEFINED