/home/rex/ebltrunk/core/libidx/include/padder.h

/***************************************************************************
 *   Copyright (C) 2011 by Pierre Sermanet *
 *   pierre.sermanet@gmail.com *
 *   All rights reserved.
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 *     * Redistribution under a license not approved by the Open Source
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 *        This product includes software developed at the Courant
 *        Institute of Mathematical Sciences (http://cims.nyu.edu).
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#ifndef PADDER_H_
#define PADDER_H_

#include "idx.h"
#include "geometry.h"

namespace ebl {
  
  // padder

  template <typename T> class padder {
  public:
    padder(const idxdim &kerdims, bool mirror = true);
    virtual ~padder();
    virtual idx<T> pad(idx<T> &in);
    virtual void pad(idx<T> &in, idx<T> &out);
    
  protected:
    virtual void mirror(idx<T> &in, idx<T> &padded);
    
  protected: // members ////////////////////////////////////////////////////////
    int nrow, ncol, nrow2, ncol2;
    bool bmirror;
  };

  // padding utilities
  
  template<typename T>
    idx<T> image_region_to_rect(idx<T> &im, const rect<int> &r, uint h,
                                uint w, rect<int> *cropped = NULL,
                                uint dh = 0, uint dw = 1);
  template<typename T>
    void image_paste_center(idx<T> &in, idx<T> &out);  
  
} // end namespace ebl

#include "padder.hpp"

#endif /* PADDER_H_ */