Imagick::convolveImage

(PECL imagick 2.0.0)

Imagick::convolveImageApplies a custom convolution kernel to the image

Beschreibung

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

Applies a custom convolution kernel to the image.

Parameter-Liste

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.

Rückgabewerte

Liefert TRUE bei Erfolg.

Fehler/Exceptions

Wirft ImagickException bei Fehlern.

Beispiele

Beispiel #1 Imagick::convolveImage()

<?php
function convolveImage($imagePath$bias$kernelMatrix) {
    
$imagick = new \Imagick(realpath($imagePath));    
    
//$edgeFindingKernel = [-1, -1, -1, -1, 8, -1, -1, -1, -1,];
    
$imagick->setImageBias($bias * \Imagick::getQuantum());
    
$imagick->convolveImage($kernelMatrix);
    
header("Content-Type: image/jpg");
    echo 
$imagick->getImageBlob();
}

?>