Intervention Image Class

Intervention Image Class is an image handling and manipulation wrapper library using PHP GD library. The class is written to make PHP image manipulating more easier and expressive.

The library requires at least PHP version 5.3 and comes with Laravel 4 Facades and Service Providers to simplify the optional framework integration.

Installation

You can install this Image class quickly and easily with Composer.

Require the package via Composer in your composer.json.

"intervention/image": "dev-master"

Run Composer to install or update the new requirement.

$ composer update

Now you are able to require the vendor/autoload.php file to PSR-0 autoload the library.

Laravel 4 Integration

The Image class also has optional Laravel 4 support. The integration into the framework is done in seconds.

Open your Laravel config file config/app.php and add the following lines.

In the $providers array add the service providers for this package.

'providers' => array(
    
    [...]

    'Intervention\Image\ImageServiceProvider'
),

Add the facade of this package to the $aliases array.

'aliases' => array(
    
    [...]

    'Image' => 'Intervention\Image\Facades\Image'
),

Usage

Image::__construct - Create new instance of Image class
Image::make - Open a new image resource from image file or create a new empty image
Image::canvas - Create a new empty image resource
Image::resize - Resize current image based on given width and/or height
Image::crop - Crop the current image
Image::grab - Cut out a detail of the image in given ratio and resize to output size
Image::insert - Insert another image on top of the current image
Image::brightness - Changes brightness of current image (-100 = min brightness, 0 = no change, +100 = max brightness)
Image::contrast - Changes contrast of current image (-100 = min contrast, 0 = no change, +100 = max contrast)
Image::pixelate - Pixelate current image
Image::greyscale - Turn current image into a greyscale version
Image::invert - Invert colors of current image
Image::text - Write text in current image
Image::fill - Fill image with given color at position x,y
Image::rectangle - Draw rectangle in current image starting at point 1 and ending at point 2
Image::line - Draw a line in current image starting at point 1 and ending at point 2
Image::ellipse - Draw an ellipse centered at given coordinates
Image::circle - Draw a circle centered at given coordinates
Image::pixel - Set single pixel with given color at position x,y
Image::pickColor - Picks and formats color at position in current image
Image::reset - Reset to original image resource
Image::save - Save image in filesystem
Image::__toString - Returns image data depending on current format

Code examples (Laravel)

Resize images

// create Image from file
$img = Image::make('public/foo.jpg');

// resize image to fixed size
$img->resize(300, 200);

// resize only the width of the image
$img->resize(300, null);

// resize only the height of the image
$img->resize(null, 200);

// resize the image to a width of 300 and constrain aspect ratio (auto height)
$img->resize(300, null, true);

// resize the image to a height of 200 and constrain aspect ratio (auto width)
$img->resize(null, 200, true);

// prevent possible upsizing with optional fourth parameter
$img->resize(null, 400, true, false);

// Reset image resource to original
$img->reset();

// save image in desired format and quality
$img->save('public/bar.jpg', 60);

Crop image

// create Image from file
$img = Image::make('public/foo.jpg');

// crop 300x200 pixel cutout at position x:200, y:100
$img->crop(300, 200, 200, 100);

// crop 300x200 pixel cutout centered on current image
$img->crop(300, 200);

// save image
$img->save();

Smart resizing

// use grab method to format images in a smart way combining cropping and resizing
$img = Image::make('public/foo.jpg');

// crop the best fitting 1:1 ratio (200x200) and resize to 200x200 pixel
$img->grab(200);

// crop the best fitting 5:3 (600x360) ratio and resize to 600x360 pixel
$img->grab(600, 360);

// save image
$img->save('public/bar.jpg');

Create empty images and add content

// create an empty Image resource (background color transparent)
$img = Image::canvas(640, 480);

// insert another image on top of current resource
$img->insert('public/bar.png');

// write some text in image
$img->text('Hello World', 10, 10);

// save image in desired format
$img->save('public/foo.jpg');

Image filters

// create Image from file
$img = Image::make('public/foo.jpg');

// turn image into greyscale version
$img->greyscale();

// modify brightness level
$img->brightness(80);

// modify contrast level
$img->contrast(-45);

// pixelate image with blocksize of 25x25 pixel
$img->pixelate(25);

Other examples

// create empty canvas
$img = Image::canvas(800, 600);

// fill image with color
$img->fill('cccccc');

// draw a filled rectangle
$img->rectangle('006729', 100, 100, 200, 200, true);

// draw a outline circle
$img->circle('ae051f', 400, 300, 100, false);

// draw a red line from point 10,10 to point 300,300 pixel
$img->line('ae051f', 10, 10, 300, 300);

Method chaining

// it is possible to chain all methods
$img1 = Image::canvas(800, 600);
$img2 = Image::make('public/img2.png');
$img1->resize(300, 200)->insert($img2)->save('public/bar.jpg');

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