(PECL imagick 2, PECL imagick 3)
Imagick::setImageBias β Sets the image bias for any method that convolves an image
Π¦Ρ ΡΡΠ½ΠΊΡΡΡ ΠΠΠ‘Π’ΠΠ ΠΠΠ ΠΏΠΎΡΠΈΠ½Π°ΡΡΠΈ Π· Imagick 3.4.4. ΠΠΊΡΠ°ΠΉ Π½Π΅ ΡΠ΅ΠΊΠΎΠΌΠ΅Π½Π΄ΡΡΡΡΡΡ Π½Π° Π½Π΅Ρ ΠΏΠΎΠΊΠ»Π°Π΄Π°ΡΠΈΡΡ.
Sets the image bias for any method that convolves an image (e.g. Imagick::ConvolveImage()).
bias
ΠΠΎΠ²Π΅ΡΡΠ°Ρ true Π² ΡΠ°Π·Ρ ΡΡΠΏΡΡ
Ρ.
ΠΠΈΠ΄Π°Ρ ImagickException Π² ΡΠ°Π·Ρ ΠΏΠΎΠΌΠΈΠ»ΠΊΠΈ.
ΠΡΠΈΠΊΠ»Π°Π΄ #1 Imagick::setImageBias()
<?php
//requires ImageMagick version 6.9.0-1 to have an effect on convolveImage
function setImageBias($bias) {
$imagick = new \Imagick(realpath("images/stack.jpg"));
$xKernel = array(
-0.70, 0, 0.70,
-0.70, 0, 0.70,
-0.70, 0, 0.70
);
$imagick->setImageBias($bias * \Imagick::getQuantum());
$imagick->convolveImage($xKernel, \Imagick::CHANNEL_ALL);
$imagick->setImageFormat('png');
header('Content-type: image/png');
echo $imagick->getImageBlob();
}
?>