(PECL imagick 2, PECL imagick 3)
Imagick::addNoiseImage — Adds random noise to the image
$noise_type, int $channel = Imagick::CHANNEL_DEFAULT): boolAdds random noise to the image.
noise_typeThe type of the noise. Refer to this list of noise constants.
channel
Provide any channel constant that is valid for your channel mode. To apply to more than one channel, combine channel constants using bitwise operators. 缺省為Imagick::CHANNEL_DEFAULT.
參考此 通道常數列表
成功時(shí)返回 true。
示例 #1 Imagick::addNoiseImage()
<?php
function addNoiseImage($noiseType, $imagePath, $channel) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->addNoiseImage($noiseType, $channel);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>