(PECL imagick 2, PECL imagick 3)
Imagick::edgeImage — Enhance edges within the image
$radius
) : boolEnhance edges within the image with a convolution filter of the given radius. Use radius 0 and it will be auto-selected.
radiusThe radius of the operation.
成功时返回 true。
错误时抛出 ImagickException。
Example #1 Imagick::edgeImage()
<?php
function edgeImage($imagePath, $radius) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->edgeImage($radius);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>