Php/docs/imagick.embossimage
Imagick::embossImage
(PECL imagick 2, PECL imagick 3)
Imagick::embossImage — Returns a grayscale image with a three-dimensional effect
说明
public Imagick::embossImage
( float $radius
, float $sigma
) : bool
Returns a grayscale image with a three-dimensional effect. We convolve the image with a Gaussian operator of the given radius and standard deviation (sigma). For reasonable results, radius should be larger than sigma. Use a radius of 0 and it will choose a suitable radius for you.
参数
radius- The radius of the effect
sigma- The sigma of the effect
返回值
成功时返回 true。
错误／异常
错误时抛出 ImagickException。
范例
Example #1 Imagick::embossImage()
<?phpfunction embossImage($imagePath, $radius, $sigma) { $imagick = new \Imagick(realpath($imagePath)); $imagick->embossImage($radius, $sigma); header("Content-Type: image/jpg"); echo $imagick->getImageBlob();}?>
