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
)
Warning
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Warning
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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.