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.
Creates a new image that is a copy of an existing one with the image pixels
"imploded" by the specified percentage.
Return Values
Returns TRUE
on success.