Imagick::addNoiseImage()

(PECL imagick 2.0.0)

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();
}
?>