Examples

Imagick makes image manipulation in PHP extremely easy through an OO interface. Here is a quick example on how to make a thumbnail:

Example #1 Creating a thumbnail in Imagick


<?php



header('Content-type: image/jpeg');



$image = new Imagick('image.jpg');



// If 0 is provided as a width or height parameter,

// aspect ratio is maintained

$image->thumbnailImage(100, 0);



echo $image;



?>

Using SPL and other OO features supported in Imagick, it can be simple to resize all files in a directory (useful for batch resizing large digital camera images to be web viewable). Here we use resize, as we might want to retain certain meta-data:

Example #2 Make a thumbnail of all JPG files in a directory


<?php



$images = new Imagick(glob('images/*.JPG'));



foreach($images as $image) {



    // Providing 0 forces thumbnailImage to maintain aspect ratio

    $image->thumbnailImage(1024,0);



}



$images->writeImages();



?>

This is an example of creating a reflection of an image. The reflection is created by flipping the image and overlaying a gradient on it. Then both, the original image and the reflection is overlayed on a canvas.

Example #3 Creating a reflection of an image


<?php

/* Read the image */

$im = new Imagick("test.png");



/* Thumbnail the image */

$im->thumbnailImage(200, null);



/* Create a border for the image */

$im->borderImage(new ImagickPixel("white"), 5, 5);



/* Clone the image and flip it */

$reflection = $im->clone();

$reflection->flipImage();



/* Create gradient. It will be overlayd on the reflection */

$gradient = new Imagick();



/* Gradient needs to be large enough for the image and the borders */

$gradient->newPseudoImage($reflection->getImageWidth() + 10, $reflection->getImageHeight() + 10, "gradient:transparent-black");



/* Composite the gradient on the reflection */

$reflection->compositeImage($gradient, imagick::COMPOSITE_OVER, 0, 0);



/* Add some opacity. Requires ImageMagick 6.2.9 or later */

$reflection->setImageOpacity( 0.3 );



/* Create an empty canvas */

$canvas = new Imagick();



/* Canvas needs to be large enough to hold the both images */

$width = $im->getImageWidth() + 40;

$height = ($im->getImageHeight() * 2) + 30;

$canvas->newImage($width, $height, new ImagickPixel("black"));

$canvas->setImageFormat("png");



/* Composite the original image and the reflection on the canvas */

$canvas->compositeImage($im, imagick::COMPOSITE_OVER, 20, 10);

$canvas->compositeImage($reflection, imagick::COMPOSITE_OVER, 20, $im->getImageHeight() + 10);



/* Output the image*/

header("Content-Type: image/png");

echo $canvas;

?>

This example illustrates how to use fill patterns during drawing.

Example #4 Filling text with gradient


<?php



/* Create a new imagick object */

$im = new Imagick();



/* Create new image. This will be used as fill pattern */

$im->newPseudoImage(50, 50, "gradient:red-black");



/* Create imagickdraw object */

$draw = new ImagickDraw();



/* Start a new pattern called "gradient" */

$draw->pushPattern('gradient', 0, 0, 50, 50);



/* Composite the gradient on the pattern */

$draw->composite(Imagick::COMPOSITE_OVER, 0, 0, 50, 50, $im);



/* Close the pattern */

$draw->popPattern();



/* Use the pattern called "gradient" as the fill */

$draw->setFillPatternURL('#gradient');



/* Set font size to 52 */

$draw->setFontSize(52);



/* Annotate some text */

$draw->annotation(20, 50, "Hello World!");



/* Create a new canvas object and a white image */

$canvas = new Imagick();

$canvas->newImage(350, 70, "white");



/* Draw the ImagickDraw on to the canvas */

$canvas->drawImage($draw);



/* 1px black border around the image */

$canvas->borderImage('black', 1, 1);



/* Set the format to PNG */

$canvas->setImageFormat('png');



/* Output the image */

header("Content-Type: image/png");

echo $canvas;

?>