Imagick::setImageOpacity

(PECL imagick 2, PECL imagick 3)

Imagick::setImageOpacity — Sets the image opacity level

Warnung

Diese Funktion ist von Imagick 3.4.4 an MISSBILLIGT. Von der weiteren Verwendung wird dringend abgeraten.

Beschreibung

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

Sets the image to the specified opacity level. Diese Funktion ist verfügbar, wenn Imagick gegen die ImageMagick-Version 6.3.1 oder höher kompiliert wurde. 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()

Parameter-Liste

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

Rückgabewerte

Liefert true bei Erfolg.

Beispiele

Beispiel #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 ¶

5 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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