Imagick::getImageDispose

Imagick::getImageExtrema

Imagick::getImageDistortion

Compares an image to a reconstructed image

Description

float Imagick::getImageDistortion ( MagickWand $reference , int $metric )

Compares an image to a reconstructed image and returns the specified distortion metric.

Parameters

reference: Imagick object to compare to.
metric: One of the metric type constants.

Return Values

Returns the distortion metric used on the image (or the best guess thereof).

Errors/Exceptions

Throws ImagickException on error.