Imagick::getImageChannelExtrema

(PECL imagick 2, PECL imagick 3)

Imagick::getImageChannelExtrema — Gets the extrema for one or more image channels

Avviso

This function has been DEPRECATED as of Imagick 3.4.4. Relying on this function is highly discouraged.

public Imagick::getImageChannelExtrema(int $channel): array

Gets the extrema for one or more image channels. Return value is an associative array with the keys "minima" and "maxima".

channel: 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.

Restituisce true in caso di successo.

Lancia una ImagickException in caso di errore.

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