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    Imagick::getImageDistortion

    (PECL imagick 2, PECL imagick 3)

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

    说明

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

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

    参数

    reference

    Imagick object to compare to.

    metric

    One of the metric type constants.

    返回值

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

    错误／异常

    错误时抛出 ImagickException。

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