Last updated: Fri, 30 Oct 2009

Imagick::getImageChannelDistortions

()

Imagick::getImageChannelDistortions — Gets channel distortions

Beschreibung

double Imagick::getImageChannelDistortions ( Imagick $reference , int $metric , int $channel )

Compares one or more image channels of an image to a reconstructed image and returns the specified distortion metrics This method is available if Imagick has been compiled against ImageMagick version 6.4.4 or newer.

Parameter-Liste

reference: Imagick object containing the reference image
metric: Refer to this list of metric type constants.
channel: Provide any channel constant that is valid for your channel mode. To apply to more than one channel, combine channel constants using bitwise operators. Defaults to Imagick::CHANNEL_DEFAULT. Refer to this list of channel constants

Rückgabewerte

Returns a double describing the channel distrortion.

Fehler/Exceptions

Wirft ImagickException bei Fehlern.

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Imagick::getImageChannelDistortions

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Imagick::getImageChannelExtrema

Imagick::getImageChannelDistortion

Last updated: Fri, 30 Oct 2009