PHP 5.5.16 is released

Imagick::convolveImage

(PECL imagick 2.0.0)

Imagick::convolveImageApplies a custom convolution kernel to the image

Descrierea

bool Imagick::convolveImage ( array $kernel [, int $channel = Imagick::CHANNEL_ALL ] )

Applies a custom convolution kernel to the image.

Parametri

kernel

The convolution kernel

channel

Provide 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.

Valorile întoarse

Întoarce TRUE în caz de succes.

Erori/Excepții

Emite ImagickException în caz de eroare.

add a note add a note

User Contributed Notes 1 note

up
0
peter at musicalsaw dot com
10 months ago
Example of convolveImage:

<?php
// run an edge detection filter on an image
$image = new imagick( "diana.png" );
$edgeArray = array(-1,-1,-1,-1,8,-1,-1,-1,-1);
$image->convolveImage ($edgeArray);
$image->thresholdImage(1);
header('Content-type: image/png');
echo
$image;
?>
To Top