sobel.h

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#ifndef AIMS_MATH_SOBEL_H
#define AIMS_MATH_SOBEL_H
 
#include <iostream>
#include <cartodata/volume/volume.h>
 
template <class T, int D>
class SobelGradient
{
 
  public :
    void compute();
    Point3df compute(const int x,
                     const int y, 
                     const int z, 
                     const int t);
};
 
template <class T>
class SobelGradient<T, 2>
{
 
  public :
    SobelGradient(const carto::rc_ptr<carto::Volume<T> > & image,
                  const T levels = (T)255);
 
    Point3df compute(const int x, 
                     const int y, 
                     const int z, 
                     const int t);
                     
    void compute();
    
    carto::VolumeRef<double> & gradX();
    carto::VolumeRef<double> & gradY();
    
  private :
    // Parameters
    T _levels;
    
    // Image
    carto::VolumeRef<T> _image;
    
    carto::VolumeRef<double> _gradX;
    carto::VolumeRef<double> _gradY;
};
 
#endif