文字
Imagick::selectiveBlurImage
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Imagick::selectiveBlurImage — Description
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 ();
}
?>