Imagick
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Imagick::shadowImage

(PECL imagick 2.0.0)

Imagick::shadowImage — Simulates an image shadow

说明

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

Simulates an image shadow.

参数

opacity

sigma

x

y

返回值

成功时返回 TRUE .

Imagick
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PHP手册
PHP手册 - N: Simulates an image shadow

用户评论:

nilayanand at gmail dot com (27-Jul-2009 06:43)

<?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;
?>