Imagick::liquidRescaleImage

(No version information available, might only be in SVN)

Imagick::liquidRescaleImage — Animates an image or images

说明

bool Imagick::liquidRescaleImage ( int $width , int $height , float $delta_x , float $rigidity )

This method scales the images using liquid rescaling method. This method is an implementation of a technique called seam carving. In order for this method to work as expected ImageMagick must be compiled with liblqr support. 此方法在Imagick基于ImageMagick 6.3.9以上版本编译时可用。

参数

width: The width of the target size
height: The height of the target size
delta_x: How much the seam can traverse on x-axis. Passing 0 causes the seams to be straight.
rigidity: Introduces a bias for non-straight seams. This parameter is typically 0.

返回值

成功时返回 TRUE .

参见

Imagick::resizeImage() - Scales an image

PHP手册 - N: Animates an image or images

用户评论:

spider at man dot net (20-Nov-2011 07:00)

<?php /* Create new object */ $im = new Imagick( 'test.jpg' ); /* Scale down */ $im->liquidRescaleImage( 500, 200, 3, 25 ); /* Display */ header( 'Content-Type: image/jpg' ); echo $im; ?>