Imagick::equalizeImage

Imagick::flattenImages

The Imagick class

PHP Manual

Imagick::evaluateImage

(No version information available, might be only in CVS)

Imagick::evaluateImage — Applies an expression to an image

Описание

bool Imagick::evaluateImage ( int $op , float $constant [, int $channel ] )

Внимание

К настоящему времени эта функция еще не была документирована; для ознакомления доступен только список аргументов.

Applys an arithmetic, relational, or logical expression to an image. Use these operators to lighten or darken an image, to increase or decrease contrast in an image, or to produce the "negative" of an image.

Список параметров

op

The operator

constant

The value of the operator

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.

Возвращаемые значения

Returns TRUE on success.

Errors/Exceptions

Throws ImagickException on error.

Imagick::equalizeImage

Imagick::flattenImages

The Imagick class

PHP Manual