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(PECL imagick 2.0.0)
Imagick::embossImage — Returns a grayscale image with a three-dimensional effect
$radius
, float $sigma
)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.
radius
The radius of the effect
sigma
The sigma of the effect
成功时返回 TRUE
。
错误时抛出 ImagickException。
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 ();
}
?>
[#1] DJ Mike [2011-04-11 23:17:45]
embossImage() will actually return a color image with a 3D effect. If you want a gray scale image, you can use imagefilter() from the regular GD functions.
<?php
header("Content-type: image/jpeg");
$image = new Imagick("opossum.jpg");
$image->embossImage( 0, 1 );
echo $image;
?>