Example

public function renderCustomImageSimple()
{
    $tshirt = new \Imagick(realpath("images/tshirt/tshirt.jpg"));
    $logo = new \Imagick(realpath("images/tshirt/Logo.png"));
    $logo->resizeImage(100, 100, \Imagick::FILTER_LANCZOS, 1, true);
    $tshirt->setImageFormat('png');
    //Create a mask by cloning the shirt,
    $mask = clone $tshirt;
    //Negating the image,
    $mask->negateimage(true);
    //Make it transparent everywhere that it is now white.
    $mask->transparentPaintImage(
        'black',
        0,
        0.1 * \Imagick::getQuantum(),
        false
    );
      //Paint the result of the logo + mask onto the tshirt.
      $tshirt->compositeimage($mask, \Imagick::COMPOSITE_DEFAULT, 0, 0);
    $shading = clone $tshirt;
    $shading->transformimagecolorspace(\Imagick::COLORSPACE_GRAY);
    $shading->statisticImage(
        \Imagick::STATISTIC_GRADIENT,
        5,
        2
    );
    $shading->setImageFormat('png');
    //Paint the logo onto the mask, SRCIN just uses the logo's color
    $mask->compositeimage($logo, \Imagick::COMPOSITE_SRCIN, 110, 75);
    $mask->compositeimage($shading, \Imagick::COMPOSITE_MODULATE, 0, 0);
    $tshirt->compositeimage($mask, \Imagick::COMPOSITE_DEFAULT, 0, 0);
      //Paint the result of the logo + mask onto the tshirt.
      $tshirt->compositeimage($logo, \Imagick::COMPOSITE_ATOP, 110, 75);
    //Merge the image with a non-deprecated function.
    $tshirt->mergeimagelayers(\Imagick::LAYERMETHOD_COALESCE);
    header("Content-Type: image/png");
    echo $tshirt->getImageBlob();
}
/**
 *
 */
public function renderCustomImageCreases()
{
    $tshirt = new \Imagick(realpath("images/tshirt/tshirt.jpg"));
    $logo = new \Imagick(realpath("images/tshirt/Logo.png"));
    $logo->resizeImage(100, 100, \Imagick::FILTER_LANCZOS, 1, true);
    $tshirt->setImageFormat('png');
    //First lets find the creases
    //Get the average color of the tshirt and make a new image from it.
    $colorString = getAverageColorString($tshirt);
    $creases = new \Imagick();
    $creases->newpseudoimage(
        $tshirt->getImageWidth(),
        $tshirt->getImageHeight(),
        "XC:" . $colorString
    );
    //Composite difference finds the creases
    $creases->compositeimage($tshirt, \Imagick::COMPOSITE_DIFFERENCE, 0, 0);
    $creases->setImageFormat('png');
    //We need the image negated for the maths to work later.
    $creases->negateimage(true);
    //We also want "no crease" to equal 50% gray later
    //$creases->brightnessContrastImage(-50, 0);
    $creases->modulateImage(50, 100, 100);
    //Copy the logo into an image the same size as the shirt image
    //to make life easier
    $logoCentre = new \Imagick();
    $logoCentre->newpseudoimage(
        $tshirt->getImageWidth(),
        $tshirt->getImageHeight(),
        "XC:none"
    );
    $logoCentre->setImageFormat('png');
    $logoCentre->compositeimage($logo, \Imagick::COMPOSITE_SRCOVER, 110, 75);
    //Save a copy of the tshirt sized logo
    $logoCentreMask = clone $logoCentre;
    //Blend the creases with the logo
    $logoCentre->compositeimage($creases, \Imagick::COMPOSITE_MODULATE, 0, 0);
    //Mask the logo so that only the pixels under the logo come through
    $logoCentreMask->compositeimage($logoCentre, \Imagick::COMPOSITE_SRCIN, 0, 0);
    //Composite the creased logo onto the shirt
    $tshirt->compositeimage($logoCentreMask, \Imagick::COMPOSITE_DEFAULT, 0, 0);
    //And Robert is your father's brother
    header("Content-Type: image/png");
    echo $tshirt->getImageBlob();
}