6 $img->open(file=>'testimg/penguin-base.jpg', type=>'jpeg')
7 || die "Cannot open penguin-base.jpg";
11 $im2 = $img->transform(xexpr=>'x', yexpr=>'y+10*sin((x+y)/10)');
14 $im2 = Imager::transform2({rpnexpr=>'x y 10 x y + 10 / sin * + getp1'}, $img);
20 $im2 = $img->transform(xexpr=>'x', yexpr=>'y+(x+y)/10');
23 $im2 = Imager::transform2({rpnexpr=>'x y x y + 10 / + getp1'}, $img);