Imagick::getImageChannelMean
(PECL imagick 2, PECL imagick 3)
Imagick::getImageChannelMean — Gets the mean and standard deviation
Описание
public Imagick::getImageChannelMean
( int
$channel
) : arrayGets the mean and standard deviation of one or more image channels.
Список параметров
-
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.
Возвращаемые значения
Returns an array with "mean" and "standardDeviation"
members.
Ошибки
Вызывает ImagickException при ошибке.