Imagick
PHP Manual

Imagick::getImageDistortion

(PECL imagick 2.0.0)

Imagick::getImageDistortion — Compares an image to a reconstructed image

Descrição

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

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

Parâmetros

reference

Imagick object to compare to.

metric

One of the metric type constants.

Valor Retornado

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

Erros

Lança ImagickException em caso de erro.

Imagick
PHP Manual