Phalcon Image

This component allows developers to manipulate image files. We can perform multiple operation on a single image file.

Adapters

Adapter are used to encapsulate specific image manipulator programs. The following image manipulator programs are supported:

Class	Description
Phalcon\Image\Adapter\Gd	Requires the GD PHP extension
Phalcon\Image\Adapter\Imagick	Requires the ImageMagick PHP extension

Implementation

<?php
use Phalcon\Image\Factory;
$options = [
    'width'   => 200,
    'height'  => 200,
    'file'    => 'upload/javatpoint.jpg',
    'adapter' => 'imagick',
];
$image = Factory::load($options);
?>

Output:

Resizing Image

We can resize image with proper ratio maintenance by using different methods.

\Phalcon\Image::WIDTH

It is used to change the width of the image but keeps the ratio maintains. If we specify height then it is ignored.

<?php
$image = new \Phalcon\Image\Adapter\Gd('image.jpg');
$image->resize(    300,    null,    \Phalcon\Image::WIDTH
);
$image->save('resized-image.jpg');
?>

Output:

\Phalcon\Image::HEIGHT

It is used to change the height of the image but keeps the ratio maintains. If we specify width then it is ignored.

<?php
$image = new \Phalcon\Image\Adapter\Gd('image.jpg');
$image->resize(
    null,
    300,
    \Phalcon\Image::HEIGHT
);
$image->save('resized-image.jpg');
?>

Output:

Cropping Image

It is used to crop the image by 200px*200px.

<?php
$image = new \Phalcon\Image\Adapter\Gd('image.jpg');
$width =200;
$height = 200;
$offsetX = (($image->getWidth() - $width) / 2);
$offsetY = (($image->getHeight() - $height) / 2);
$image->crop($width, $height, $offsetX, $offsetY);
$image->save('cropped-image.jpg');
?>

Output:

Rotating Image

It is used to rotate throughout 360 degree as per requirement.

<?php
$image = new \Phalcon\Image\Adapter\Gd('image.jpg');
// Rotate an image by 90 degrees clockwise
$image->rotate(90);
$image->save('rotated-image.jpg');
?>

Output:

Sharpening Image

The sharpen() method takes integer value between 0 (no effect) to 100 (very sharp).

<?php
$image = new \Phalcon\Image\Adapter\Gd('image.jpg');
$image->sharpen(50);
$image->save('sharpened-image.jpg');
?>

Output:

Blurring Image

<?php
$image = new \Phalcon\Image\Adapter\Gd('image.jpg');
$image->blur(50);
$image->save('blurred-image.jpg');
?>

Output:

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