imagick-php-examples-1-0

  • Examples
  • Basic usage

  • Basic usage
  • Basic usage

    Basic usage

    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(1000);

    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(200null);

    /* Create a border for the image */
    $im->borderImage(new ImagickPixel("white"), 55);

    /* Clone the image and flip it */
    $reflection $im->clone();
    $reflection->flipImage();

    /* Create gradient. It will be overlayed 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 */
    $reflection->compositeImage($gradientimagick::COMPOSITE_OVER00);

    /* Add some opacity. Requires ImageMagick 6.2.9 or later */
    $reflection->setImageOpacity0.3 );

    /* 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 */
    $canvas->compositeImage($imimagick::COMPOSITE_OVER2010);
    $canvas->compositeImage($reflectionimagick::COMPOSITE_OVER20$im->getImageHeight() + 10);

    /* Output the image*/
    header("Content-Type: image/png");
    echo 
    $canvas;
    ?>

    The above example will output something similar to:

    Output of example : Creating a reflection of an image

    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(5050"gradient:red-black");

    /* Create imagickdraw object */
    $draw = new ImagickDraw();

    /* Start a new pattern called "gradient" */
    $draw->pushPattern('gradient'005050);

    /* Composite the gradient on the pattern */
    $draw->composite(Imagick::COMPOSITE_OVER005050$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(2050"Hello World!");

    /* Create a new canvas object and a white image */
    $canvas = new Imagick();
    $canvas->newImage(35070"white");

    /* Draw the ImagickDraw on to the canvas */
    $canvas->drawImage($draw);

    /* 1px black border around the image */
    $canvas->borderImage('black'11);

    /* Set the format to PNG */
    $canvas->setImageFormat('png');

    /* Output the image */
    header("Content-Type: image/png");
    echo 
    $canvas;
    ?>

    The above example will output something similar to:

    Output of example : Filling text with gradient

    Working with animated GIF images

    Example #5 Read in GIF image and resize all
    frames

    <?php

    /* Create a new imagick object and read in GIF */
    $im = new Imagick("example.gif");

    /* Resize all frames */
    foreach ($im as $frame) {
        
    /* 50x50 frames */
        
    $frame->thumbnailImage(5050);

        /* Set the virtual canvas to correct size */
        
    $frame->setImagePage(505000);
    }

    /* Notice writeImages instead of writeImage */
    $im->writeImages("example_small.gif"true);
    ?>

    Working with ellipse primitive and custom fonts

    Example #6 Create a PHP logo

    <?php
    /* Set width and height in proportion of genuine PHP logo */
    $width 400;
    $height 210;

    /* Create an Imagick object with transparent canvas */
    $img = new Imagick();
    $img->newImage($width$height, new ImagickPixel('transparent'));

    /* New ImagickDraw instance for ellipse draw */
    $draw = new ImagickDraw();
    /* Set purple fill color for ellipse */
    $draw->setFillColor('#777bb4');
    /* Set ellipse dimensions */
    $draw->ellipse($width 2$height 2$width 2$height 20360);
    /* Draw ellipse onto the canvas */
    $img->drawImage($draw);

    /* Reset fill color from purple to black for text (note: we are reusing ImagickDraw object) */
    $draw->setFillColor('black');
    /* Set stroke border to white color */
    $draw->setStrokeColor('white');
    /* Set stroke border thickness */
    $draw->setStrokeWidth(2);
    /* Set font kerning (negative value means that letters are closer to each other) */
    $draw->setTextKerning(-8);
    /* Set font and font size used in PHP logo */
    $draw->setFont('Handel Gothic.ttf');
    $draw->setFontSize(150);
    /* Center text horizontally and vertically */
    $draw->setGravity(Imagick::GRAVITY_CENTER);

    /* Add center "php" with Y offset of -10 to canvas (inside ellipse) */
    $img->annotateImage($draw0, -100'php');
    $img->setImageFormat('png');

    /* Set appropriate header for PNG and output the image */
    header('Content-Type: image/png');
    echo 
    $img;
    ?>

    The above example will output something similar to:

    Output of example : Creating PHP logo with Imagick