#ifndef IImgStat_HH
#define IImgStat_HH
//////////////////////////////////////////////////////////////////////////
//! file="amma/Image/ScalarIm/IImgStat.hh"
//! lib=ScalarIm
//! userlevel=Normal
//! author="Radek Marik"
//! date="26.04.1996"
//! docentry="Image.Image Processing"
//! rcsid="$Id: IImgStat.hh,v 1.7 1999/12/02 11:30:50 ees1cg Exp $"

#include "amma/IntImage.hh"
#include "amma/Mean1d.hh"

class LinearSums1dC;
class IntMinMax1dC;

// ------------------------------------------------------------------------
// **** IntImageStatC *****************************************************
// ------------------------------------------------------------------------

//: The class  IntImageStatC is an engine for computation of statistics.
// The class  IntImageStatC is an engine for computation of statistics
// on integer images. The engine can be attached to an integer image as its
// another handle.

class IntImageStatC: public IntImageC 
{
  public:

    // Constructors, copy, assigment, and destructor
    // ---------------------------------------------

    inline IntImageStatC();
    // Creates the engine attached to the empty image.

    inline IntImageStatC(const IntImageC & img);
    // Creates the engine attached to the image 'img'.

    inline IntImageStatC(const IntImageStatC & eng);
    // Creates another engine attached to the image which is attached
    // to the engine 'eng'.

    inline 
    IntImageStatC(const IntImageC & img, const ImageRectangleC & rect);
    // Creates the engine attached to the subimage of the image 'img'
    // limited by the rectangle 'rect'.

    inline const IntImageStatC & operator=(const IntImageStatC & im);
    // Assigment.

    // Extremal values
    // ---------------

    PixelC MaxPixel() const;
    // Returns the first pixel with the maximum value.

    PixelC MinPixel() const;
    // Returns the first pixel with the minimum value.

    IntMinMax1dC MinMax() const;
    // Returns the extremal values in the image.

    // Mean and variance
    // -----------------

    Mean1dC::NumberT Count(GreyValueT level) const;
    // Returns the number of pixels at 'level' in the image.

    Mean1dC Mean() const;
    // Returns the mean of intensities of all pixel values.

    LinearSums1dC IntensitySums() const;
    // Returns the sums of intensities of all pixel values.

};

// ------------------------------------------------------------------------
// *** IntImageStatC *****************************************************
// ------------------------------------------------------------------------

inline 
IntImageStatC::IntImageStatC()
//============================
: IntImageC()
{}

inline 
IntImageStatC::IntImageStatC(const IntImageC & img)
//=================================================
: IntImageC(img)
{}

inline 
IntImageStatC::IntImageStatC(const IntImageStatC & eng)
//=====================================================
: IntImageC(eng)
{}

inline 
IntImageStatC::IntImageStatC(const IntImageC &      img,
                             const ImageRectangleC & rect)
//========================================================
: IntImageC(img,rect)
{}

inline 
const IntImageStatC & 
IntImageStatC::operator=(const IntImageStatC & im)
//================================================
{
  IntImageC::operator=(im);
  return *this;
}


#endif

// IAPS - Image analysis program system.
// End of include file IImgStat.hh