docs: public static boolean checkInside(ImageBase b, int x , int y , int radius ) {
  		if( x-radius < 0 )
  			return false;
  		if( x+radius >= b.width )
  			return false;
  
  		if( y-radius < 0 )
  			return false;
  		if( y+radius >= b.height )
  			return false;
  		return true;
  	}