Question

write pseudo code for boundary fill algorithm. compare boundary fill algorithm with scan line algorithm​

Answer 1

Answer:

void boundaryFill4(int x, int y, int fill_color,int boundary_color)

{

   if(getpixel(x, y) != boundary_color &&

      getpixel(x, y) != fill_color)

   {

       putpixel(x, y, fill_color);

       boundaryFill4(x + 1, y, fill_color, boundary_color);

       boundaryFill4(x, y + 1, fill_color, boundary_color);

       boundaryFill4(x - 1, y, fill_color, boundary_color);

       boundaryFill4(x, y - 1, fill_color, boundary_color);

   }

}

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