Open In App
Related Articles

PHP | Gmagick blurimage() Function

Improve Article
Save Article
Like Article

The Gmagick::blurimage() function is an inbuilt function in PHP which is used to add blur filter to the image. 


Gmagick Gmagick::blurimage( $radius, $sigma, $channel )

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

  • $radius: This parameter is used to set blur radius in an image.
  • $sigma: It sets the standard deviation.
  • $channel: This parameter set the channel type constant. If it is not supplied then all channels are blurred.

Return Value: This function returns True on success. 

Errors/Exceptions: This function throws GmagickException on error. Below programs illustrates the Gmagick::blurimage() function in PHP: 

Original Image:


Program 1: 


// Create a Gmagick object
$gmagick = new Gmagick(
// Use blurimage() function
$gmagick->blurimage(7, 8);
header('Content-type: image/png');
// Output the image
echo $gmagick;



Program 2: 


// Create a GmagickDraw object
$draw = new GmagickDraw();
// Create GmagickPixel object
$strokeColor = new GmagickPixel('Red');
$fillColor = new GmagickPixel('Green');
// Set the color, opacity of image
// Set the width and height of image
// Function to draw circle 
$draw->circle(250, 250, 100, 150);
$gmagick = new Gmagick();
$gmagick->newImage(500, 500, 'White');
// Use blurimage() function
$gmagick->blurimage(7, 5);
// Display the output image
header("Content-Type: image/png");
echo $gmagick->getImageBlob();




Whether you're preparing for your first job interview or aiming to upskill in this ever-evolving tech landscape, GeeksforGeeks Courses are your key to success. We provide top-quality content at affordable prices, all geared towards accelerating your growth in a time-bound manner. Join the millions we've already empowered, and we're here to do the same for you. Don't miss out - check it out now!

Last Updated : 10 Apr, 2023
Like Article
Save Article
Similar Reads
Complete Tutorials