docs: public static boolean isInBounds( int x , int y , IntegralKernel kernel , int width , int height )
  	{
  		for(ImageRectangle r : kernel.blocks ) {
  			if( x+r.x0 < 0 || y+r.y0 < 0 )
  				return false;
  			if( x+r.x1 >= width || y+r.y1 >= height )
  				return false;
  		}
  
  		return true;
  	}