Imagick::getImageChannelDistortion
(No version information available, might be only in CVS)
Imagick::getImageChannelDistortion — Compares image channels of an image to a reconstructed image
Description
float Imagick::getImageChannelDistortion
(
Imagick $reference
,
int $channel
,
int $metric
)
WarningThis function is
currently not documented; only its argument list is available.
Compares one or more image channels of an image to a reconstructed image
and returns the specified distortion metric.
Parameters
-
reference
-
Imagick object to compare to.
-
channel
-
Provide any channel constant that is valid for your channel mode. To
apply to more than one channel, combine channeltype constants using
bitwise operators. Defaults to Imagick::CHANNEL_ALL. Refer to this
list of channel constants.
-
metric
-
One of the metric type constants.
Return Values
Returns TRUE on success.
Errors/Exceptions
Throws ImagickException on error.
