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。

示例

示例 #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();
}

?>

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nilayanand at gmail dot com ¶

15 years ago

<?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;

?>