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(   // Charcoal Image function $image->charcoalImage(0.2, 1);    header('Content-type: image/png');   // Display the output image echo $image; ?> |
Output:
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Reference: http://php.net/manual/en/imagick.charcoalimage.php
