Last updated: Fri, 30 Oct 2009

Imagick::orderedPosterizeImage

(PECL imagick 2.2.2)

Imagick::orderedPosterizeImage — Performs an ordered dither

Beschreibung

bool Imagick::orderedPosterizeImage ( string $threshold_map [, int $channel = Imagick::CHANNEL_ALL ] )

Performs an ordered dither based on a number of pre-defined dithering threshold maps, but over multiple intensity levels, which can be different for different channels, according to the input arguments. This method is available if Imagick has been compiled against ImageMagick version 6.3.1 or newer.

Parameter-Liste

threshold_map: A string containing the name of the threshold dither map to use
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. Defaults to Imagick::CHANNEL_ALL. Refer to this list of channel constants.

Rückgabewerte

Liefert TRUE bei Erfolg.

Fehler/Exceptions

Wirft ImagickException bei Fehlern.

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Last updated: Fri, 30 Oct 2009