PHP | Gmagick blurimage() Function
sarthak_ishu11
The Gmagick::blurimage() function is an inbuilt function in PHP which is used to add blur filter to the image.
Syntax:
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.
- $channel: This parameter set the channel type constant. If it is not supplied then all channels are blurred.
Return Value: This function returns True on success.
Errors/Exceptions: This function throws GmagickException on error. Below programs illustrates the Gmagick::blurimage() function in PHP:
Original Image:
Program 1:
php
<?php // Create a Gmagick object$gmagick = new Gmagick( // Use blurimage() function$gmagick->blurimage(7, 8);header('Content-type: image/png'); // Output the imageecho $gmagick;?> |
Output:
Program 2:
php
<?php // Create a GmagickDraw object$draw = new GmagickDraw(); // Create GmagickPixel object$strokeColor = new GmagickPixel('Red');$fillColor = new GmagickPixel('Green'); // Set the color, opacity of image$draw->setStrokeOpacity(1);$draw->setStrokeColor('Red');$draw->setFillColor('Green'); // Set the width and height of image$draw->setStrokeWidth(7);$draw->setFontSize(72); // Function to draw circle $draw->circle(250, 250, 100, 150); $gmagick = new Gmagick();$gmagick->newImage(500, 500, 'White');$gmagick->setImageFormat("png");$gmagick->drawImage($draw);// Use blurimage() function$gmagick->blurimage(7, 5);// Display the output imageheader("Content-Type: image/png");echo $gmagick->getImageBlob();?> |
Output:
Reference: http://php.net/manual/en/gmagick.blurimage.php
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