Imagick::getImageChannelDistortion

(PECL imagick 2, PECL imagick 3)

Imagick::getImageChannelDistortionCompares image channels of an image to a reconstructed image

Descrizione

public Imagick::getImageChannelDistortion(Imagick $reference, int $channel, int $metric): float

Compares one or more image channels of an image to a reconstructed image and returns the specified distortion metric.

Elenco dei parametri

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. Refer to this list of channel constants.

metric

One of the metric type constants.

Valori restituiti

Restituisce true in caso di successo.

Errori/Eccezioni

Lancia una ImagickException in caso di errore.

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