title: ImageMagick No decode delegate for this image format
body: <p>I work under windows and wamp server.</p>
  
  <p>this is my PHP code with Imagick</p>
  
  <pre><code>$imagick = new Imagick($_SERVER['DOCUMENT_ROOT'] . '/' . $this-&gt;_name);
  </code></pre>
  
  <p>where <code>$_SERVER['DOCUMENT_ROOT'].'/'.$this-&gt;_name</code> displays : </p>
  
  <blockquote>
    <p>D:/Sources/my_project/public/media/2/9/1/05201502/55450e1b6543a05201502_9.PNG</p>
  </blockquote>
  
  <p>I checked that image and it does exist in the folder.</p>
  
  <p>But Imagick throws an exception  :</p>
  
  <blockquote>
    <p>Uncaught exception 'ImagickException' with message 'no decode delegate
    for this image format
    `D:/Sources/my_project/public/media/2/9/1/05201502/55450b10d8ea705201502_9.PNG'
    @ error/constitute.c/ReadImage/555' in
    D:\Sources\my_project\library\project\Image.php on line 225</p>
  </blockquote>
  
  <p>I looked for a solution, but didn't find any, how can I fix this?? thank you </p>
  
  <p><strong>Update:</strong> This is the result when I type <code>convert -version</code> in the command line :</p>
  
  <pre><code>  Version: ImageMagick 6.8.8-4 Q16 x86 2014-01-29 http://www.imagemagick.org
    Copyright: Copyright (C) 1999-2014 ImageMagick Studio LLC
    Features: DPC Modules OpenMP
    Delegates: bzlib cairo freetype jbig jng jp2 jpeg lcms lqr pangocairo \
               png ps rsv g tiff webp xml zlib
  </code></pre>
  
  <p><strong>update</strong></p>
  
  <p>This is the phpinfo of imagick.</p>
  
  <blockquote>
    <p>ImageMagick number of supported formats:  0<br>
    ImageMagick supported formats:    no value</p>
  </blockquote>