Imagick::setImageOpacity

(PECL imagick 2.0.0)

Imagick::setImageOpacity — Sets the image opacity level

설명

bool Imagick::setImageOpacity ( float $opacity )

Sets the image to the specified opacity level. 이 메쏘드는 Imagick을 ImageMagick 6.3.1 이상으로 컴파일 했을 때만 사용할 수 있습니다. 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()

인수

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

반환값

성공시에 TRUE를 반환합니다.

예제

Example #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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