(PECL imagick 2, PECL imagick 3)
Imagick::blurImage — Adds blur filter to image
public Imagick::blurImage ( float $radius , float $sigma [, int $channel ] ) : bool
Adds blur filter to image. Optional third parameter to blur a specific channel.
radius
Blur radius
sigma
Standard deviation
channel
The Channeltype constant. When not supplied, all channels are blurred.
Returns true
on success.
Throws ImagickException on error.
© 1997–2020 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/imagick.blurimage.php