CalculateOptimalROI.h

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// -*- c-basic-offset: 4 -*-
#ifndef _BASICALGORITHMS_CALCULATEOPTIMALROI_H
#define _BASICALGORITHMS_CALCULATEOPTIMALROI_H

#include <hugin_shared.h>
#include <panotools/PanoToolsInterface.h>
#include <algorithms/PanoramaAlgorithm.h>
#include <panodata/PanoramaData.h>

#include <vector>
#include <list>

namespace HuginBase {

class IMPEX CalculateOptimalROI : public TimeConsumingPanoramaAlgorithm
{
    public:
        CalculateOptimalROI(PanoramaData& panorama, AppBase::ProgressDisplay* progress, bool intersect = false)
            : TimeConsumingPanoramaAlgorithm(panorama, progress), intersection(intersect)
        {
            //set to zero for error condition
            m_bestRect = vigra::Rect2D(0,0,0,0);
            o_optimalSize = vigra::Size2D(0,0);
        }
        CalculateOptimalROI(PanoramaData& panorama, AppBase::ProgressDisplay* progress, std::vector<UIntSet> hdr_stacks)
            : TimeConsumingPanoramaAlgorithm(panorama, progress), intersection(true), stacks(hdr_stacks)
        {
            //set to zero for error condition
            m_bestRect = vigra::Rect2D(0, 0, 0, 0);
            o_optimalSize = vigra::Size2D(0,0);
        }
        
        virtual ~CalculateOptimalROI() {};
        
        virtual bool modifiesPanoramaData() const
            { return false; }
            
        virtual bool runAlgorithm()
        {
            return calcOptimalROI(o_panorama);
        }
        
        virtual vigra::Rect2D getResultOptimalROI()
        {
            if (hasRunSuccessfully())
            {
                return m_bestRect;
            }
            else
            {
                return vigra::Rect2D();
            }
        }

        void setStacks(std::vector<UIntSet> hdr_stacks);

    private:
        bool calcOptimalROI(PanoramaData& panorama);

        vigra::Size2D o_optimalSize;
        bool intersection;
        std::vector<UIntSet> stacks;
        UIntSet activeImages;
        std::map<unsigned int,PTools::Transform*> transfMap;
        //map for storing already tested pixels
        std::vector<bool> testedPixels;
        std::vector<bool> pixels;
        vigra::Rect2D m_bestRect;

        bool imgPixel(int i, int j);
        bool stackPixel(int i, int j, UIntSet &stack);
        
        //local stuff, convert over later
        bool autocrop();
        void nonreccheck(const vigra::Rect2D& rect, int acc, int searchStrategy, long& maxvalue);
        bool CheckRectCoversPano(const vigra::Rect2D& rect);
        void AddCheckingRects(std::list<vigra::Rect2D>& testingRects, const vigra::Rect2D& rect, const long maxvalue);

        void CleanUp();
};

class IMPEX CalculateOptimalROIOutside :public TimeConsumingPanoramaAlgorithm
{
public:
    CalculateOptimalROIOutside(PanoramaData& panorama, AppBase::ProgressDisplay* progress) : TimeConsumingPanoramaAlgorithm(panorama, progress) {};
    virtual bool modifiesPanoramaData() const
    {
        return false;
    };
    virtual bool runAlgorithm()
    {
        return CalcOutsideCrop(o_panorama, getProgressDisplay());
    };

    virtual vigra::Rect2D getResultOptimalROI();
private:
    bool CalcOutsideCrop(PanoramaData& pano, AppBase::ProgressDisplay* progress);
    vigra::Rect2D m_bestRect;
};

} //namespace
#endif