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Imagick::setImageArtifact — Set image artifact
$artifact
, string $value
) : boolAssociates 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。
artifactThe name of the artifact
valueThe value of the artifact
成功时返回 TRUE。
错误时抛出 ImagickException。
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();
}
?>