PHP | Imagick charcoalImage() Function

The Imagick::charcoalImage() function is an inbuilt function in PHP which is used to simulate a charcoal drawing of an image.

Syntax:

bool Imagick::charcoalImage( $radius, $sigma )

Parameters: This function accepts two parameters as mentioned above and described below:

• $radius: This parameter stores the value of radius of the Gaussian, in pixels.
• $sigma: This parameter stores the value of the standard deviation of the Gaussian, in pixels.

Return Value: This function returns True on success.

Original Image:

Below program illustrates the Imagick::charcoalImage() function in PHP:

Program:

<?php
// require_once('path/vendor/autoload.php');

// Create a new Imagick Object
$image = new Imagick(
'https://media.geeksforgeeks.org/wp-content/uploads/geeksforgeeks-14.png');

// Charcoal Image function
$image->charcoalImage(0.2, 1);

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

// Display the output image
echo $image;
?>

Output:

Reference: http://php.net/manual/en/imagick.charcoalimage.php