(PECL imagick 2.0.0)
Imagick::getImageRegion — Extracts a region of the image
Extracts a region of the image and returns it as a new Imagick object.
width
The width of the extracted region.
height
The height of the extracted region.
x
X-coordinate of the top-left corner of the extracted region.
y
Y-coordinate of the top-left corner of the extracted region.
Extracts a region of the image and returns it as a new wand.
错误时抛出 ImagickException。
zolcos at hotmail dot com (2009-07-22 14:45:05)
getImageRegion has the same side effect that was mentioned for operations that change the crop of the image -- the new image preserves the old canvas and positioning info. For example, using annotateImage on the new image will interpret the positioning arguments relative to the old image. To correct it, reset this info with setImagePage.
<?php
$im->setImagePage(0, 0, 0, 0);
?>