Imagick::getNumberImages

(PECL imagick 2, PECL imagick 3)

Imagick::getNumberImages — Returns the number of images in the object

说明

public Imagick::getNumberImages ( ) : int

Returns the number of images associated with Imagick object.

参数

此函数没有参数。

返回值

Returns the number of images associated with Imagick object.

错误／异常

错误时抛出 ImagickException。

User Contributed Notes

benkuhl at gmail dot com 24-Jan-2013 07:26


For PDFs this function indicates the number of pages on the PDF, NOT images that might be embedded within the PDF.



<?php



$document = new Imagick('2_pager.pdf');



var_dump($document->getNumberImages()); //returns 2



$document = new Imagick('1_pager.pdf');



var_dump($document->getNumberImages()); //returns 1



?>



From my research it is not possible to obtain the images embedded within a PDF by using the PHP Imagick library.

gzabriskie at yahoo dot com 07-Apr-2009 05:21


<?php

/* Create the object */

$image = new Imagick('YourImageLocation.tif');

$count = $image->getNumberImages();



echo "<h3 style=\"font: bold 12pt Arial\">Total Number of Images Extracted ".

     "from the TIF : ".$image->getNumberImages()."</h3>";



for ($x = 1;$x <= $image->getNumberImages(); $x++) {

  $image->previousImage();

  $image->thumbnailImage( 400, null );

  $image->writeImage('img'.$count.'.png');

  $count--;

}

?>



<html>

  <head>

    <title>Extracting Images Form TIFF</title>

  </head>

  <body>

    <table cellspacing="10" style="background: #ddd"><tr>

      <?php

      for ($x = 1;$x <= $image->getNumberImages(); $x++) {

        echo "<td><img src=\"img$x.png\"<br /><p style=\"font: bold 12pt Arial;".

             "text-align: center\">image $x (png)</p></td>";

      }

      ?>

    </tr></table>

  </body>

</html>