Adds random noise to the image.
NOISE_UNIFORM = 1; NOISE_GAUSSIAN = 2; NOISE_MULTIPLICATIVEGAUSSIAN = 3; NOISE_IMPULSE = 4; NOISE_LAPLACIAN = 5; NOISE_POISSON = 6; NOISE_RANDOM = 7;

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Image
Noise type
Channel
Adds random noise to the image.
NOISE_UNIFORM = 1; NOISE_GAUSSIAN = 2; NOISE_MULTIPLICATIVEGAUSSIAN = 3; NOISE_IMPULSE = 4; NOISE_LAPLACIAN = 5; NOISE_POISSON = 6; NOISE_RANDOM = 7;
Parameters
noise_typeintThe type of the noise. Refer to this list of noise constants.
channelintImagick channel constant;
function addNoiseImage($noiseType, $imagePath, $channel)
{
    $imagick = new \Imagick(realpath($imagePath));
    $imagick->addNoiseImage($noiseType, $channel);
    header("Content-Type: image/jpg");
    echo $imagick->getImageBlob();
}