(PECL imagick 2.0.0)
Imagick::setImageOpacity — Sets the image opacity level
$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()
opacity
The level of transparency: 1.0 is fully opaque and 0.0 is fully transparent.
성공시에 TRUE
를 반환합니다.
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;
?>