#ifndef IPGRADESTB_HEADER
#define IPGRADESTB_HEADER 1
////////////////////////////////////////////////////////
//! userlevel=Develop
//! docentry="Image.Image Processing.Edges"
//! author="Charles Galambos"
//! rcsid="$Id: IPGradEstB.hh,v 1.7 2000/02/16 14:12:33 ees1cg Exp $"
//! file="amma/Image/IPStream/Edge/IPGradEstB.hh"
//! lib=IPEdge
//! date="27/05/98"

#include "amma/Image/IPTransformB.hh"
#include "amma/IndNeig2.hh"
#include "amma/GreyVal.hh"

//: Estimate gradient directions from a binary image.

class IPEdgeGradEstBodyC : public IPTransformBC<ByteGreyValueT,ByteGreyValueT> {
public:
  IPEdgeGradEstBodyC(int neigh = 3);
  //: Default constructor.
  
  virtual BodyRefCounterVC & Copy () const { return *new IPEdgeGradEstBodyC(*this); }
  //: Makes a deep copy and is virtual
  
protected:
  virtual ImageC<ByteGreyValueT> Apply (const ImageC<ByteGreyValueT> &oth) const;
  //: Applies filter to image and returns result

private:
  IndexNeigh2dC neigh;
};

#endif