Image perspective transformation with Imagick

transformation.php

<?php

/* Main image part */
$main = new Imagick(DIR_IMAGE . $old_image);
$main->setImageMatte(true);
$main->cropimage($main->getImageWidth() * 0.9, $main->getImageHeight(), $main->getImageWidth() * 0.1, 0);
$main->setimagebackgroundcolor("#ffffff");
$main->setImageVirtualPixelMethod(imagick::VIRTUALPIXELMETHOD_BACKGROUND);
$pointsMain = array(
  0, 0, 0, 0,
  0, $main->getImageHeight() - 20,
  0, $main->getImageHeight() - 5,
  $main->getImageWidth() - 10, 10,
  $main->getImageWidth() - 10, 20,
  $main->getImageWidth() - 10, $main->getImageHeight() * 0.9,
  $main->getImageWidth() - 10, $main->getImageHeight() * 0.9
);
$main->distortimage(Imagick::DISTORTION_PERSPECTIVE, $pointsMain, true);

/* Left image part, 5% of width */
$left = new Imagick(DIR_IMAGE . $old_image);
$left->setImageMatte(true);
$left->cropimage($main->getImageWidth() * 0.1, $main->getImageHeight(), 0, 0);
$left->setimagebackgroundcolor("#ffffff");
$left->setImageVirtualPixelMethod(imagick::VIRTUALPIXELMETHOD_BACKGROUND);
$pointsLeft = array(
  // left top
  0, 0, 0, $left->getImageHeight() * 0.05,
  // right top
  $left->getImageWidth(), 0,
  $left->getImageWidth(), 0,
  // left bottom
  0, $left->getImageHeight(),
  0, $left->getImageHeight() - $left->getImageHeight() * 0.05,
  // right bottom
  $left->getImageWidth(), $left->getImageWidth(),
  $left->getImageWidth(), $left->getImageWidth()
);
$left->scaleimage(0, $main->getImageHeight() - 2);
$left->distortimage(Imagick::DISTORTION_PERSPECTIVE, $pointsLeft, true);

/* Merge image parts */
$final = new Imagick();
$final->addimage($left);
$final->addimage($main);
$final->resetiterator();
$final->setImageMatte(true);
$combined = $final->appendimages(false);
$combined->scaleimage($width, 0);
$combined->writeimage(DIR_IMAGE . $new_image);