Last updated: Fri, 20 Nov 2009

Imagick::orderedPosterizeImage

(PECL imagick 2.2.2)

Imagick::orderedPosterizeImage — Performs an ordered dither

Descrierea

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. Această metodă este disponibilă dacă Imagick a fost compilat cu ImageMagick de versiunea 6.3.1 sau ulterior.

Parametri

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.

Valorile întroarse

Întoarce TRUE în caz de succes.

Erori/Excepţii

Aruncă ImagickException în caz de eroare.

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Last updated: Fri, 20 Nov 2009