Imagick::compareImageChannels
(No version information available, might be only in CVS)
Imagick::compareImageChannels — Returns the difference in one or more images
Description
Imagick Imagick::compareImageChannels
(
Imagick $image
,
int $channelType
,
int $metricType
)
WarningThis function is
currently not documented; only its argument list is available.
Compares one or more images and returns the difference image.
Parameters
-
image
-
Imagick object containing the image to compare.
-
channelType
-
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.
-
metricType
-
One of the metric type constants.
Return Values
Returns TRUE on success.
Errors/Exceptions
Throws ImagickException on error.
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