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PHP | Imagick sketchImage() Function

  • Last Updated : 26 Aug, 2019

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.


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:


// 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();

sketch image

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