Last updated: Fri, 30 Jan 2009

Imagick::orderedPosterizeImage

(PECL imagick 2.2.3)

Imagick::orderedPosterizeImage — Performs an ordered dither

説明

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

警告

この関数は、現在のところ詳細な情報はありません。引数のリストのみが記述されています。

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.

パラメータ

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.

返り値

成功した場合に TRUE を返します。

エラー / 例外

エラー時に ImagickException をスローします。

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Last updated: Fri, 30 Jan 2009