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.
Smooths the contours of an image while still preserving edge
information. The algorithm works by replacing each pixel with
its neighbor closest in value. A neighbor is defined by radius.
Use a radius of 0 and Imagick::reduceNoiseImage() selects a
suitable radius for you.
Return Values
Returns TRUE
on success.