Imagick
PHP Manual

Imagick::selectiveBlurImage

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Imagick::selectiveBlurImageDescription

说明

public void Imagick::selectiveBlurImage ( float $radius , float $sigma , float $threshold , int $CHANNEL )

Selectively blur an image within a contrast threshold. It is similar to the unsharpen mask that sharpens everything with contrast above a certain threshold.

参数

radius

sigma

threshold

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. 缺省为Imagick::CHANNEL_DEFAULT. 参考此 通道常数列表

返回值

范例

Example #1 Imagick::selectiveBlurImage()

<?php
function selectiveBlurImage($imagePath$radius$sigma$threshold$channel) {
    
$imagick = new \Imagick(realpath($imagePath));
    
$imagick->selectiveBlurImage($radius$sigma$threshold$channel);
    
header("Content-Type: image/jpg");
    echo 
$imagick->getImageBlob();
}

?>


Imagick
PHP Manual