PHP 7.3.12 Released

Imagick::setImageOpacity

(PECL imagick 2.0.0)

Imagick::setImageOpacitySets the image opacity level

Описание

Imagick::setImageOpacity ( float $opacity ) : bool

Sets the image to the specified opacity level. Этот метод доступен, если Imagick был скомпилирован с версией ImageMagick 6.3.1 или старше. 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()

Список параметров

opacity

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

Возвращаемые значения

В случае успешной работы возвращает TRUE.

Примеры

Пример #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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hola at rafaeltovar dot info
1 month 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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