(PECL imagick 2, PECL imagick 3)
Imagick::addNoiseImage — Adds random noise to the image
public Imagick::addNoiseImage ( int $noise_type [, int $channel = Imagick::CHANNEL_DEFAULT ] ) : bool
Adds random noise to the image.
noise_type
The type of the noise. Refer to this list of noise constants.
channel
Provide any channel constant that is valid for your channel mode. To apply to more than one channel, combine channel constants using bitwise operators. Defaults to Imagick::CHANNEL_DEFAULT. Refer to this list of channel constants
Returns true on success.
Example #1 Imagick::addNoiseImage()
<?php
function addNoiseImage($noiseType, $imagePath, $channel) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->addNoiseImage($noiseType, $channel);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
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https://www.php.net/manual/en/imagick.addnoiseimage.php