Imagick::setImageArtifact()

(No version information available, might only be in Git)

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();
}
?>