The Imagick::sketchImage() function is an inbuilt function in PHP which is used to simulates a pencil sketch. This function convolves the image with a Gaussian operator of the given radius and standard deviation.
Syntax:
bool Imagick::sketchImage( $radius, $sigma, $angle )
Parameters: This function accepts three parameters as mentioned above and described below:
- $radius: This parameter is used to set the radius of the Gaussian, in pixels, not counting the center pixel.
- $sigma: This parameter is used to set the standard deviation of the Gaussian, in pixels.
- $angle: This parameter is used to set the angle to apply the effect.
Return Value: This function returns True on success.
Below program illustrates the Imagick::sketchImage() function in PHP:
Program:
<?php   // Create an Imagick object $imagick = new Imagick(   // Use sketchimage function $imagick->sketchimage(5, 1, 45);   header("Content-Type: image/jpg");   // Display the output image echo $imagick->getImageBlob(); ?> |
Output:
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