Imagick::embossImage

(PECL imagick 2.0.0)

Imagick::embossImage — Returns a grayscale image with a three-dimensional effect

说明

bool Imagick::embossImage ( float $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.

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 .

PHP手册 - N: Returns a grayscale image with a three-dimensional effect

用户评论:

DJ Mike (12-Apr-2011 07:17)

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; ?>