Php/docs/imagick.setsamplingfactors

• PHP Manual
• Imagick
• Sets the image sampling factors

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

Example #1 Imagick::setSamplingFactors()

<?phpfunction 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();}?>