Last updated: Fri, 20 Nov 2009

Imagick::blurImage

(PECL imagick 2.0.0)

Imagick::blurImage — Adds blur filter to image

Description

bool Imagick::blurImage ( float $radius , float $sigma [, int $channel ] )

Warning

This function is currently not documented; only its argument list is available.

Adds blur filter to image. Optional third parameter to blur a specific channel.

Parameters

radius: Blur radius
sigma: Standard deviation
channel: The Channeltype constant. When not supplied, all channels are blurred.

Return Values

Returns TRUE on success.

Errors/Exceptions

Throws ImagickException on error.

Examples

Example #1 Using Imagick::blurImage():

Blur an image, then display to the browser.


<?php

header('Content-type: image/jpeg');

$image = new Imagick('test.jpg');

$image->blurImage(5,3);
echo $image;

?>


A pure GD ImageBlur. More at http://www.puremango.co.uk



<?

function myImageBlur($im)

{

    // w00t. my very own blur function

    $width = imagesx($im);

    $height = imagesy($im);



    $temp_im = ImageCreateTrueColor($width,$height);

    $bg = ImageColorAllocate($temp_im,150,150,150);



    // preserves transparency if in orig image

    ImageColorTransparent($temp_im,$bg);



    // fill bg

    ImageFill($temp_im,0,0,$bg);



    // the higher, the more blurred (no impact on speed)

    $distance = 1;



    // blur by merging with itself at different x/y offsets:

    ImageCopyMerge($temp_im, $im, 0, 0, 0, $distance, $width, $height-$distance, 70);

    ImageCopyMerge($im, $temp_im, 0, 0, $distance, 0, $width-$distance, $height, 70);

    ImageCopyMerge($temp_im, $im, 0, $distance, 0, 0, $width, $height, 70);

    ImageCopyMerge($im, $temp_im, $distance, 0, 0, 0, $width, $height, 70);

    // remove temp image

    ImageDestroy($temp_im);



    return $im;

}

?>

add a note

Imagick::borderImage

Imagick::blackThresholdImage