Imagick::fxImage
(PECL imagick 2.0.0)
Imagick::fxImage — Evaluate expression for each pixel in the image
Descrição
Evaluate expression for each pixel in the image. Consult » The Fx Special Effects Image Operator for more information.
Parâmetros
-
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.
Valor Retornado
Returns TRUE on success.
Erros
Throws ImagickException on error.
Exemplos
Example #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();
}
?>