Imagick::embossImage
(PECL imagick 2.0.0)
Imagick::embossImage — Returns a grayscale image with a three-dimensional effect
说明
Imagick::embossImage (
float
$radius ,
float $sigma ) :
bool
Returns a grayscale image with a three-dimensional effect. We convolve the image with a Gaussian operator of the given radius and standard deviation (sigma). For reasonable results, radius should be larger than sigma. Use a radius of 0 and it will choose a suitable radius for you.
参数
-
radius -
The radius of the effect
-
sigma -
The sigma of the effect
返回值
成功时返回 TRUE。
错误／异常
错误时抛出 ImagickException。
范例
Example #1 Imagick::embossImage()
<?php
function embossImage($imagePath, $radius, $sigma) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->embossImage($radius, $sigma);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
