Imagick::setImageArtifact
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Imagick::setImageArtifact — Set image artifact
说明
Imagick::setImageArtifact (
string
$artifact ,
string $value ) :
bool
Associates an artifact with the image. The difference between image properties and image artifacts is that properties are public and artifacts are private. 此方法在Imagick基于ImageMagick 6.5.7以上版本编译时可用。
参数
-
artifact -
The name of the artifact
-
value -
The value of the artifact
返回值
成功时返回 TRUE。
错误／异常
错误时抛出 ImagickException。
参见
- Imagick::getImageArtifact() - Get image artifact
- Imagick::deleteImageArtifact() - Delete image artifact
范例
Example #1 Imagick::setImageArtifact()
<?php
function setImageArtifact() {
$src1 = new \Imagick(realpath("./images/artifact/source1.png"));
$src2 = new \Imagick(realpath("./images/artifact/source2.png"));
$src2->setImageVirtualPixelMethod(\Imagick::VIRTUALPIXELMETHOD_TRANSPARENT);
$src2->setImageArtifact('compose:args', "1,0,-0.5,0.5");
$src1->compositeImage($src2, Imagick::COMPOSITE_MATHEMATICS, 0, 0);
$src1->setImageFormat('png');
header("Content-Type: image/png");
echo $src1->getImagesBlob();
}
?>
