Imagick::setImageOpacity

(PECL imagick 2, PECL imagick 3)

Imagick::setImageOpacity — Sets the image opacity level

Aviso

This function has been DEPRECATED as of Imagick 3.4.4. Relying on this function is highly discouraged.

Descrição

public Imagick::setImageOpacity ( float $opacity ) : bool

Sets the image to the specified opacity level. Este método está disponível se o PHP foi compilado com o ImageMagick versão 6.3.1 ou superior. This method operates on all channels, which means that for example opacity value of 0.5 will set all transparent areas to partially opaque. To add transparency to areas that are not already transparent use Imagick::evaluateImage()

Parâmetros

opacity: The level of transparency: 1.0 is fully opaque and 0.0 is fully transparent.

Valor Retornado

Retorna true no sucesso.

Exemplos

Exemplo #1 A Imagick::setImageOpacity() example

An example of using Imagick::setImageOpacity()


<?php
/* Create the object */
$image = new Imagick('source.png');

/* Set the opacity */
$image->setImageOpacity(0.7);

/* output the image */
header('Content-type: image/png');
echo $image;

?>

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User Contributed Notes 1 note

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hola at rafaeltovar dot info ¶

4 years ago


This function is deprecated from last stable version (3.4.4 - 2019-05-02) of PECL Imagick extension. 

More info: http://pecl.php.net/package-changelog.php?package=imagick&release=3.4.4

"setImageAlpha" is the new alternative function, but doesn't work with ImageMagick < 7.

More info: https://github.com/avalanche123/Imagine/issues/715

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