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Image.cpp

Go to the documentation of this file.

/**************************************************************************
 *
 * Source code for Real Time Image Library (libRTImage)
 *
 * Leeds Vision Group give permission for this code to be copied, modified 
 * and distributed within the University of Leeds subject to the following 
 * conditions:-
 *
 * - The code is not to be used for commercial gain.
 * - The code and use thereof will be attributed to the author where
 *   appropriate (inluding demonstrations which rely on it's use).
 * - All modified, distributions of the source files will retain this header.
 *
 ****************************************************************************/

#include <new>          // bad_alloc exception
 
#include "Image.h"


Image::Image(Image& img) : ImageBase(img), ImageRGB(img), ImageGrey(img)
{
}


Image::Image(unsigned int w, unsigned int h)
 : ImageBase(w,h), ImageRGB(w,h), ImageGrey(w,h)
{
}


Image::~Image()
{
}


void Image::set_rgb(unsigned int x, unsigned int y, PixelRGB& p)
{
        ImageRGB::set_pixel(x,y,p);
}


void Image::set_brightness(unsigned int x, unsigned int y, PixelGrey& level)
{
        ImageGrey::set_pixel(x,y,level);
}


void Image::get_rgb(unsigned int x, unsigned int y, PixelRGB& p)
{
        ImageRGB::get_pixel(x, y, p);
}


void Image::get_brightness(unsigned int x, unsigned int y, PixelGrey& p)
{
        ImageGrey::get_pixel(x,y, p);
}


Image& Image::clear_rgb(int k)
{
        ImageRGB::clear(k);
        return *this;
}


Image& Image::clear_rgb(PixelRGB& p)
{
        ImageRGB::clear(p);
        return *this;
}


Image& Image::clear_brightness(int k)
{
        ImageGrey::clear(k);
        return *this;
}


Image& Image::copy(Image& img)
{
        ImageRGB::copy(img);
        ImageGrey::copy(img);
        return *this;
}

 
Image& Image::operator = (Image& img)
{
        this->ImageRGB::copy(img);
        this->ImageGrey::copy(img);
        return *this ;
}

void Image::update_brightness()
{
        unsigned int y_cnt;
        unsigned int x_cnt;
        PixelGrey *bri_ptr = brightness;
        PixelRGB* rgb_ptr = data;

        for(y_cnt=0 ; y_cnt< height ; y_cnt++){
            for(x_cnt=0 ; x_cnt< width ; x_cnt++){
                *(bri_ptr++) = (PixelGrey)( (RED_COEF*(float)(*rgb_ptr)[0]) +
                                        (GREEN_COEF*(float)(*rgb_ptr)[1]) +
                                        (BLUE_COEF*(float)(*rgb_ptr)[2]) );
                rgb_ptr++;
            } 
        }
}

/****************************************************************************\
 *       Extra doxygen comments and information relating to this file       *
\****************************************************************************/
 

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