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Imagick::getImageChannelExtrema
Gets the extrema for one or more image channels
()
array Imagick::getImageChannelExtrema ( int channel )
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.
Gets the extrema for one or more image channels. Return value is an associative array with the keys "minima" and "maxima".