What is Grafika?

Grafika is an advance image processing and graphics library for PHP.

Download .zip Github

Why Grafika?

Why another image manipulation lib? There are a bazillion other libs for PHP already, why reinvent the wheel? Well...

Unique Features

These are the features that makes Grafika unique from other libs:

• Smart Crop - Grafika can guess the crop position based on the image content where the most important regions are preserved.
• Animated GIF Support - It can resize animated GIFs on both GD and Imagick. On GD, Grafika uses its own GIF parser to do this.
• 5 Resize Modes - Resize is a first class citizen in Grafika. Call them directly using resizeFit, resizeFill, resizeExact, resizeExactWidth, and resizeExactHeight or use the generic resize api.
• Image Compare - Find how similar two images are or check if they are exactly equal.
• Advance Filters - Sobel edge-detection, diffusion and ordered dithering. More will be added in future releases.
• Image Blending - Blend 2 images using the following modes: normal, multiply, overlay and screen.
• Normalized API - No need to worry about the differences between GD and Imagick API, Grafika normalizes these operations for you.

Basic Filters

Grafika also support the basic filters commonly found in other libs:

• Blur
• Brightness
• Colorize
• Contrast
• Gamma
• Invert
• Pixelate
• Sharpen

See Filters section for more info.

Drawing Objects

• CubicBezier
• Ellipse
• Line
• Polygon
• QuadraticBezier
• Rectangle

See Drawing Objects section for more info.

Easy Image Manipulation

Grafika makes it easier to do image manipulation in PHP.

Consider the following code using PHP's default built-in image lib, GD.
It will resize a jpeg image to exactly 200x200 pixels:

$gd = imagecreatefromjpeg( 'path/to/jpeg/image.jpg' ); // Open jpeg file

$newImage = imagecreatetruecolor(200, 200); // Create a blank image

// Resize image to 200x200
imagecopyresampled(
    $newImage,
    $gd,
    0,
    0,
    0,
    0,
    200,
    200,
    imagesx($gd),
    imagesy($gd)
);

imagedestroy($gd); // Free up memory

imagejpeg( $newImage, 'path/to/edited.jpg', 90 ); // Save resized image with 90% quality

imagedestroy($newImage); // Free up memory
            

Now consider doing the same using grafika:

use Grafika\Grafika;

$editor = Grafika::createEditor();

$editor->open( $image, "path/to/jpeg/image.jpg" );
$editor->resizeExact( $image, 200, 200 );
$editor->save( $image, "path/to/edited.jpg", null, 90 );

You can even chain the api calls (think jQuery):

use Grafika\Grafika;

Grafika::createEditor()
        ->open( $image, "path/to/jpeg/image.jpg" )
        ->resizeExact( $image, 200, 200 )
        ->save( $image, "path/to/edited.jpg", null, 90 );

See docs for more info.

• Requirements