Last updated: Fri, 14 Nov 2008

Imagick::evaluateImage

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

Imagick::evaluateImage — Applies an expression to an image

Descrição

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

Aviso

Esta função não está documentada; somente a lista de argumentos está disponível.

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.

Parâmetros

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.

Valor Retornado

Retorna TRUE em sucesso.

Erros

Dispara ImagickException em erro.

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Imagick::evaluateImage

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Imagick::flattenImages

Imagick::equalizeImage

Last updated: Fri, 14 Nov 2008