Imagick::transverseImage

← transformImageColorspace   trimImage →
Creates a horizontal mirror image by reflecting the pixels around the central y-axis while rotating them 270-degrees. This method is available if Imagick has been compiled against ImageMagick version 6.2.9 or newer.

function transverseImage($image_path)
{
    $imagick = new \Imagick(realpath($image_path));
    $imagick->transverseImage();
    header("Content-Type: image/jpeg");
    echo $imagick->getImageBlob();
}