PHP 8.4.0 RC4 available for testing

    Imagick::compareImageChannels

    (PECL imagick 2, PECL imagick 3)

    Imagick::compareImageChannels — Returns the difference in one or more images

    说明

    public Imagick::compareImageChannels(Imagick $image, int $channelType, int $metricType): array

    Compares one or more images and returns the difference image.

    参数

    image

    Imagick object containing the image to compare.

    channelType

    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.

    metricType

    One of the metric type constants.

    返回值

    Array consisting of new_wand and distortion.

    错误／异常

    错误时抛出 ImagickException。

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