- PHP 手册
- 函数参考
- 图像生成和处理
- ImageMagick
- Imagick
Imagick::setSamplingFactors
(PECL imagick 2, PECL imagick 3)
Imagick::setSamplingFactors — Sets the image sampling factors
说明
public Imagick::setSamplingFactors(array$factors): bool
Sets the image sampling factors.
参数
-
factors -
返回值
成功时返回 true。
范例
示例 #1 Imagick::setSamplingFactors()
<?php
function setSamplingFactors($imagePath) {
$imagePath = "../imagick/images/FineDetail.png";
$imagick = new \Imagick(realpath($imagePath));
$imagick->setImageFormat('jpg');
$imagick->setSamplingFactors(array('2x2', '1x1', '1x1'));
$compressed = $imagick->getImageBlob();
$reopen = new \Imagick();
$reopen->readImageBlob($compressed);
$reopen->resizeImage(
$reopen->getImageWidth() * 4,
$reopen->getImageHeight() * 4,
\Imagick::FILTER_POINT,
1
);
header("Content-Type: image/jpg");
echo $reopen->getImageBlob();
}
?>
User Contributed Notes
There are no user contributed notes for this page.官方地址：https://www.php.net/manual/en/imagick.setsamplingfactors.php