Example

function setStrokeAntialias($strokeColor, $fillColor, $backgroundColor)
{

    $draw = new \ImagickDraw();

    $draw->setStrokeColor($strokeColor);
    $draw->setFillColor($fillColor);
    $draw->setStrokeWidth(1);
    $draw->setStrokeAntialias(false);
    $draw->line(100, 100, 400, 105);

    $draw->line(100, 140, 400, 185);

    $draw->setStrokeAntialias(true);
    $draw->line(100, 110, 400, 115);
    $draw->line(100, 150, 400, 195);

    $image = new \Imagick();
    $image->newImage(500, 250, $backgroundColor);
    $image->setImageFormat("png");

    $image->drawImage($draw);

    header("Content-Type: image/png");
    echo $image->getImageBlob();
}