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。

示例

示例 #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();
}

?>