(PECL imagick 2, PECL imagick 3)
Imagick::chopImage — Removes a region of an image and trims
Removes a region of an image and collapses the image to occupy the removed portion.
widthWidth of the chopped area
heightHeight of the chopped area
xX origo of the chopped area
yY origo of the chopped area
成功时返回 true。
错误时抛出 ImagickException。
示例 #1 Using Imagick::chopImage():
Example of using Imagick::chopImage
<?php
/* Create some objects */
$image = new Imagick();
$pixel = new ImagickPixel( 'gray' );
/* New image */
$image->newImage(400, 200, $pixel);
/* Chop image */
$image->chopImage(200, 200, 0, 0);
/* Give image a format */
$image->setImageFormat('png');
/* Output the image with headers */
header('Content-type: image/png');
echo $image;
?>