Imagick::edgeImage()

(PECL imagick 2.0.0)

Enhance edges within the image

说明

Imagick::edgeImage(float $radius): bool

Enhance edges within the image with a convolution filter of the given radius. Use radius 0 and it will be auto-selected.

参数

$radius

The radius of the operation.

返回值

成功时返回TRUE。

错误／异常

错误时抛出 ImagickException。

范例

Example #1 Imagick::edgeImage()

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