Imagick::fxImage
(PECL imagick 2, PECL imagick 3)
Imagick::fxImage — Evaluate expression for each pixel in the image
Beschreibung
Evaluate expression for each pixel in the image. Consult » The Fx Special Effects Image Operator for more information.
Parameter-Liste
-
expression
-
The expression.
-
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::fxImage()
<?php
function fxImage() {
$imagick = new \Imagick();
$imagick->newPseudoImage(200, 200, "xc:white");
$fx = 'xx=i-w/2; yy=j-h/2; rr=hypot(xx,yy); (.5-rr/140)*1.2+.5';
$fxImage = $imagick->fxImage($fx);
header("Content-Type: image/png");
$fxImage->setimageformat('png');
echo $fxImage->getImageBlob();
}
?>