Imagick::shadowImage

(PECL imagick 2, PECL imagick 3)

Imagick::shadowImage — Simulates an image shadow

说明

public Imagick::shadowImage ( float $opacity , float $sigma , int $x , int $y ) : bool

Simulates an image shadow.

参数

opacity

sigma

x

y

返回值

成功时返回 true。

范例

Example #1 Imagick::shadowImage()

<?php
function shadowImage($imagePath) {
    $imagick = new \Imagick(realpath($imagePath));
    $imagick->shadowImage(0.4, 10, 50, 5);
    header("Content-Type: image/jpg");
    echo $imagick->getImageBlob();
}

?>

User Contributed Notes

nilayanand at gmail dot com 27-Jul-2009 10:43
<?php
/* Read the image into the object */
$im = new Imagick( 'a.jpg' );
$im->setImageFormat("png");
 
/* Make the image a little smaller, maintain aspect ratio */
$im->thumbnailImage( 200, null );
 
/* Clone the current object */
$shadow = $im->clone();
 
/* Set image background color to black
        (this is the color of the shadow) */
$shadow->setImageBackgroundColor( new ImagickPixel( 'black' ) );
 
/* Create the shadow */
$shadow->shadowImage( 80, 3, 5, 5 );
 
/* Imagick::shadowImage only creates the shadow.
        That is why the original image is composited over it */
$shadow->compositeImage( $im, Imagick::COMPOSITE_OVER, 0, 0 );
 
/* Display the image */
header( "Content-Type: image/jpeg" );
echo $shadow;
?>