/**
 * @file RSSlic.h
 * @brief SLIC Superpixels from "SLIC Superpixels Compared to State-of-the-art Superpixel Methods,"
 * @author Björn Fröhlich, Alexander Freytag
 * @date 02/02/2013
 */
#ifndef RSSlicINCLUDE
#define RSSlicINCLUDE

#include "core/basics/Config.h"
#include "RegionSegmentationMethod.h"

namespace OBJREC {

class RSSlic: public RegionSegmentationMethod
{

protected:
  
    /////////////////////////
    /////////////////////////
    // PROTECTED VARIABLES //
    /////////////////////////
    /////////////////////////
  
    //!number of regions
    int spcount; 
    
    //!value between 0 and 40
    double compactness; 
    
    //!average size of each region
    int regionsize;
    
    //!use lab space or not
    bool b_lab; 

public:
  
    ///////////////////// ///////////////////// /////////////////////
    //                   CONSTRUCTORS / DESTRUCTORS
    ///////////////////// ///////////////////// /////////////////////   
    /** simple constructor */
    RSSlic();

    /**
     * standard constructor
     * @param conf config file
     */
    RSSlic( const NICE::Config * _conf );

    /** simple destructor */
    virtual ~RSSlic();
    
    /** 
    * @brief Setup internal variables and objects used
    * @author Alexander Freytag
    * @param conf Config file to specify variable settings
    * @param s_confSection
    * @date 08-02-2014 ( dd-mm-yyyy )
    */       
    virtual void initFromConfig ( const NICE::Config * _conf, const std::string & _confSection = "RSSlic" );    
    
    ///////////////////// ///////////////////// /////////////////////
    //                      SEGMENTATION STUFF
    ///////////////////// ///////////////////// //////////////////     

    /**
     * returns the regions of a given image
     * @param img input image
     * @param mask output regions, each region has it own number
     * @return count of region
     */
    virtual int segRegions ( const NICE::Image & img, NICE::Matrix & mask ) const;

    /**
     * returns the regions of a given image
     * @param img input color image
     * @param mask output regions, each region has it own number
     * @return count of region
     */
    virtual int segRegions ( const NICE::ColorImage & img, NICE::Matrix & mask) const;
    
    ///////////////////// INTERFACE PERSISTENT /////////////////////
    // interface specific methods for store and restore
    ///////////////////// INTERFACE PERSISTENT /////////////////////   
    
    /** 
     * @brief Load object from external file (stream)
     * @author Alexander Freytag
     * @date 08-02-2014 ( dd-mm-yyyy )
     */     
    void restore ( std::istream & is, int format = 0 );
    
    /** 
     * @brief Save object to external file (stream)
     * @author Alexander Freytag
     * @date 08-02-2014 ( dd-mm-yyyy )
     */     
    void store ( std::ostream & os, int format = 0 ) const;
    
    /** 
     * @brief Clear object
     * @author Alexander Freytag
     * @date 08-02-2014 ( dd-mm-yyyy )
     */     
    void clear ();     
};

} //namespace

#endif