# Imagick::getImageDistortion

(No version information available, might be only in CVS)

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

### Description

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

This function is currently not documented; only the argument list is available.

Warning

This function is EXPERIMENTAL. The behaviour of this function, the name of this function, and anything else documented about this function may change without notice in a future release of PHP. Use this function at your own risk.

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

### Parameters

`reference`

`metric`

### Return Values

Returns the distortion metric used on the image (or the best guess thereof). Throws an exception on error.