ossimErosionFilter.h

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//**************************************************************************************************
//
//     OSSIM Open Source Geospatial Data Processing Library
//     See top level LICENSE.txt file for license information
//
//**************************************************************************************************

#ifndef ossimErosionFilter_HEADER
#define ossimErosionFilter_HEADER

#include <ossim/imaging/ossimImageSourceFilter.h>
#include <ossim/base/ossimPolygon.h>

class OSSIM_DLL ossimErosionFilter : public ossimImageSourceFilter
{
public:
   ossimErosionFilter(ossimObject* owner=NULL);
   virtual void initialize();
   virtual ossimRefPtr<ossimImageData> getTile(const ossimIrect& rect, ossim_uint32 resLevel=0);

   void setWindowSize(ossim_uint32 windowSize) { theWindowSize = windowSize; }
   ossim_uint32 getWindowSize() const          { return theWindowSize; }

   virtual void setProperty(ossimRefPtr<ossimProperty> property);
   virtual ossimRefPtr<ossimProperty> getProperty(const ossimString& name)const;
   virtual void getPropertyNames(std::vector<ossimString>& propertyNames)const;
   
   virtual bool saveState(ossimKeywordlist& kwl, const char* prefix=0)const;

   virtual bool loadState(const ossimKeywordlist& kwl, const char* prefix=0);

protected:
   virtual ~ossimErosionFilter();
   
   ossimRefPtr<ossimImageData> theTile;
   ossimRefPtr<ossimImageData> theTempTile; 
   ossim_uint32                theWindowSize;
   ossimPolygon                theValidImagePoly;

   template <class T> void doErosion(T scalarType, ossimRefPtr<ossimImageData>& inputData);

   TYPE_DATA
};

#endif