ossimMeanMedianFilter.h

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//*******************************************************************
// Copyright (C) 2000 ImageLinks Inc.
//
// License:  MIT
// 
// See LICENSE.txt file in the top level directory for more details.
//
// Author:  Garrett Potts
//
//*******************************************************************
//  $Id: ossimMeanMedianFilter.h 15766 2009-10-20 12:37:09Z gpotts $
#ifndef ossimMeanMedianFilter_HEADER
#define ossimMeanMedianFilter_HEADER

#include <ossim/imaging/ossimImageSourceFilter.h>

class OSSIM_DLL ossimMeanMedianFilter : public ossimImageSourceFilter
{
public:

   enum ossimMeanMedianFilterType
   {
      OSSIM_MEDIAN                  = 0,

      OSSIM_MEDIAN_FILL_NULLS       = 1,

      OSSIM_MEDIAN_NULL_CENTER_ONLY = 2,

      OSSIM_MEAN                    = 3,

      /* Applies filter to all pixels including null center pixels. */
      OSSIM_MEAN_FILL_NULLS         = 4,

      OSSIM_MEAN_NULL_CENTER_ONLY   = 5
   };

   ossimMeanMedianFilter(ossimObject* owner=NULL);

   virtual ~ossimMeanMedianFilter();

   virtual ossimRefPtr<ossimImageData> getTile(const ossimIrect& rect,
                                               ossim_uint32 resLevel=0);
   virtual void initialize();

   void setWindowSize(ossim_uint32 windowSize);
   ossim_uint32 getWindowSize()const;

   void setAutoGrowRectFlag(bool flag);
   bool getAutoGrowRectFlag() const;

   void setFilterType(ossimMeanMedianFilterType type);
   void setFilterType(const ossimString& type);
   ossimString getFilterTypeString() const;
   void getFilterTypeList(std::vector<ossimString>& list) const;
   
   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);

   virtual ossimIrect getBoundingRect(ossim_uint32 resLevel=0)const;

protected:
   ossimRefPtr<ossimImageData> theTile;
   ossimMeanMedianFilterType   theFilterType;
   ossim_uint32                theWindowSize;

   bool theEnableFillNullFlag;

   bool theAutoGrowRectFlag;

   void applyFilter(ossimRefPtr<ossimImageData>& input);

   template <class T>
      void applyMean(T dummyVariable,
                     ossimRefPtr<ossimImageData>& inputData);
   template <class T>
      void applyMeanNullCenterOnly(T dummyVariable,
                                   ossimRefPtr<ossimImageData>& inputData);

   template <class T>
      void applyMedian(T dummyVariable,
                       ossimRefPtr<ossimImageData>& inputData);
   template <class T>
      void applyMedianNullCenterOnly(T dummyVariable,
                                     ossimRefPtr<ossimImageData>& inputData);
TYPE_DATA
};

#endif