Imagick::liquidRescaleImage
(PECL imagick 2 >= 2.2.0, PECL imagick 3)
Imagick::liquidRescaleImage — Animates an image or images
说明
int
$width,int
$height,float
$delta_x,float
$rigidity): bool
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。
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User Contributed Notes 1 note
<?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;
?>
备份地址：http://www.lvesu.com/blog/php/imagick.liquidrescaleimage.php