略微加速

PHP官方手册 - 互联网笔记

PHP - Manual: Imagick::liquidRescaleImage

2024-12-22

Imagick::liquidRescaleImage

(PECL imagick 2 >= 2.2.0, PECL imagick 3)

Imagick::liquidRescaleImageAnimates an image or images

说明

public Imagick::liquidRescaleImage(
    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

参见

add a noteadd a note

User Contributed Notes 1 note

up
0
spider at man dot net
10 years ago
<?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;
    
   
?>

官方地址:https://www.php.net/manual/en/imagick.liquidrescaleimage.php

北京半月雨文化科技有限公司.版权所有 京ICP备12026184号-3