Blurs an image. We convolve the image with a Gaussian operator of the given radius and standard deviation (sigma). For reasonable results, the radius should be larger than sigma. Use a radius of 0 and selects a suitable radius for you.
Touch/mouse over to see original View modified in new window.
Image
Radius
Sigma
Channel
Blurs an image. We convolve the image with a Gaussian operator of the given radius and standard deviation (sigma). For reasonable results, the radius should be larger than sigma. Use a radius of 0 and selects a suitable radius for you.
Parameters
radiusfloatThe radius of the Gaussian, in pixels, not counting the center pixel.
sigmafloatThe standard deviation of the Gaussian, in pixels.
channelintProvide any channel constant that is valid for your channel mode. To apply to more than one channel, combine channeltype constants using bitwise operators. Refer to this list of channel constants.
function gaussianBlurImage($imagePath, $radius, $sigma, $channel)
{
    $imagick = new \Imagick(realpath($imagePath));
    $imagick->gaussianBlurImage($radius, $sigma, $channel);
    header("Content-Type: image/jpg");
    echo $imagick->getImageBlob();
}