Imagick::compareImageChannels
Returns the difference in one or more images
Description
array Imagick::compareImageChannels
( Imagick $image
, int $channelType
, int $metricType
)
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. Refer to this
list of channel constants.
-
metricType
-
One of the metric type constants.
Return Values
Array consisting of new_wand and
distortion.
Errors/Exceptions
Throws ImagickException on error.