Imagick::setImageBias
(PECL imagick 2.0.0)
Imagick::setImageBias — Sets the image bias for any method that convolves an image
Description
bool Imagick::setImageBias ( float $bias )Sets the image bias for any method that convolves an image (e.g. Imagick::ConvolveImage()).
Parameters
bias
Return Values
Returns TRUE on success.
Errors/Exceptions
Throws ImagickException on error.
Examples
Example #1 Imagick::setImageBias()
<?php
//requires?ImageMagick?version?6.9.0-1?to?have?an?effect?on?convolveImage
function?setImageBias($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();
}
?>← Imagick::setImageBackgroundColor
Imagick::setImageBiasQuantum →
? 1997–2017 The PHP Documentation GroupLicensed under the Creative Commons Attribution License v3.0 or later.
本文档系腾讯云开发者社区成员共同维护，如有问题请联系 cloudcommunity@tencent.com
