(PECL imagick 2.0.0)
Imagick::getImageChannelStatistics — Returns statistics for each channel in the image
This function is currently not documented; only its argument list is available.
Returns statistics for each channel in the image. The statistics include the channel depth, its minima and maxima, the mean, and the standard deviation. You can access the red channel mean, for example, like this:
Returns TRUE on success.