Imagick::liquidRescaleImage()

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Animates an image or images

说明

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

Imagick::resizeImage() Scales an image

<?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;
   
  ?>