Imagick::getImageChannelDistortion

(PECL imagick 2.0.0)

Imagick::getImageChannelDistortion — Compares image channels of an image to a reconstructed image

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

Внимание

К настоящему времени эта функция еще не была документирована; для ознакомления доступен только список аргументов.

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

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.

В случае успешной работы возвращает TRUE.

Бросает ImagickException при ошибке.