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Imagick::adaptiveBlurImage

(PECL imagick 2, PECL imagick 3)

Imagick::adaptiveBlurImageAdds adaptive blur filter to image

說(shuō)明

public Imagick::adaptiveBlurImage(float $radius, float $sigma, int $channel = Imagick::CHANNEL_DEFAULT): bool

Adds an adaptive blur filter to image. The intensity of an adaptive blur depends is dramatically decreased at edge of the image, whereas a standard blur is uniform across the image. 此方法在Imagick基于ImageMagick 6.2.9以上版本編譯時(shí)可用。

參數

radius

The radius of the Gaussian, in pixels, not counting the center pixel. Provide a value of 0 and the radius will be chosen automagically.

sigma

The standard deviation of the Gaussian, in pixels.

channel

Provide any channel constant that is valid for your channel mode. To apply to more than one channel, combine channel constants using bitwise operators. 缺省為Imagick::CHANNEL_DEFAULT. 參考此 通道常數列表

返回值

成功時(shí)返回 true。

錯誤/異常

錯誤時(shí)拋出 ImagickException。

范例

示例 #1 Using Imagick::adaptiveBlurImage():

Adaptively blur an image, then display to the browser.

<?php

header
('Content-type: image/jpeg');

$image = new Imagick('test.jpg');

$image->adaptiveBlurImage(5,3);
echo 
$image;

?>

以上例程的輸出類(lèi)似于:

Output of example : Using Imagick::adaptiveBlurImage()

參見(jiàn)

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