Imagick::getImageChannelMean

(PECL imagick 2.0.0)

Imagick::getImageChannelMean — Gets the mean and standard deviation

Descrierea

Imagick::getImageChannelMean ( int $channel ) : array

Gets the mean and standard deviation of one or more image channels. Return value is an associative array with the keys "mean" and "standardDeviation".

Parametri

channel: Provide any channel constant that is valid for your channel mode. To apply to more than one channel, combine channeltype constants using bitwise operators. Refer to this list of channel constants.

Valorile întoarse

Întoarce TRUE în caz de succes.

Erori/Excepții

Emite ImagickException în caz de eroare.