Warning: This function is
currently not documented; only the argument list is
available.
Warning: This function is
EXPERIMENTAL. The behaviour of this function, the
name of this function, and anything else documented about this
function may change without notice in a future release of PHP.
Use this function at your own risk.
Returns statistics for each channel in the image. The statistics incude the channel depth, its minima and maxima, the mean, and the standard deviation. You can access the red channel mean, for example, like this:
Return Values
Returns TRUE
on success.