i_hsv.h

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/*
 * $Id: i_hsv.h 18170 2014-11-10 23:22:06Z ksimek $
 */

#ifndef KJB_I_CPP_HSV_H
#define KJB_I_CPP_HSV_H

#include <i/i_float.h>
#include <i/i_float_io.h>
#include <i_cpp/i_pixel.h>

#include <algorithm> /* for min and max */

namespace kjb 
{

// Forward declaration
class Vector;

struct PixelHSVA : public kjb_c::Pixel
{
    PixelHSVA()
        : kjb_c::Pixel()
    {
    }

    PixelHSVA(const kjb_c::Pixel& p)
    {
        r = p.r;
        g = p.g;
        b = p.b;
        extra.alpha = p.extra.alpha;
    }

    PixelHSVA( float hh, float ss, float vv, float aa = 1.0f );


    void get_hsv( float*, float*, float* ) const;


    float get_hue() const
    {
        float hue;
        get_hsv( &hue, 0, 0 );
        return hue;
    }

    float get_saturation() const
    {
        float saturation;
        get_hsv( 0, &saturation, 0 );
        return saturation;
    }

    float get_value() const
    {
        float value;
        get_hsv( 0, 0, &value );
        return value;
    }


};



Vector hsluma_space( const kjb_c::Pixel& p );


kjb_c::Pixel get_pixel_from_hsluma_space( const Vector& hsy );


int get_pixel_from_hsluma_space( const Vector& hsy, kjb_c::Pixel* p );



} //namespace kjb

#endif