Imagick::addNoiseImage
(PECL imagick 2.0.0)
Imagick::addNoiseImage — Adds random noise to the image
说明
Imagick::addNoiseImage (
int
$noise_type [,
int $channel = Imagick::CHANNEL_DEFAULT ] ) :
bool
Adds random noise to the image.
参数
-
noise_type -
The type of the noise. Refer to this list of noise constants.
-
channel -
Provide any channel constant that is valid for your channel mode. To apply to more than one channel, combine channel constants using bitwise operators. 缺省为
Imagick::CHANNEL_DEFAULT. 参考此 通道常数列表
返回值
成功时返回 TRUE。
范例
Example #1 Imagick::addNoiseImage()
<?php
function addNoiseImage($noiseType, $imagePath, $channel) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->addNoiseImage($noiseType, $channel);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
