RGB.h

Go to the documentation of this file.

/**
 *\file         RGB.h
 *
 *\brief        RGB class wrapping pixel color-triple: red, green, and blue. 
 *
 *              Each rgb component is of a float value in [<b><var>0.0, 1.0</var></b>].
 *
 */


#ifndef _RGB_H
#define _RGB_H



namespace columbia
{
  class RGB
  {
      float rgb[3];

  public:
      RGB(float r=0., float b=0., float g=0.)  { rgb[0] = r; rgb[1] = g; rgb[2] = b; }

      float& operator[](int idx)               { return *(rgb+idx); }   //non const method: return lvalue
      float operator[](int idx) const          { return *(rgb+idx); }   //const method: return rvalue

      RGB& operator*=(float scale)             { for(int i=0; i<3; i++) rgb[i] *= scale; return *this; }
      RGB operator*(float scale) const         { RGB ret(*this); return ret *= scale; }
  };



}//end namespace columbia


#endif

---