title: Is is possible to read pixel data from base64 images?
body: <p>So here I have a base64 encoded png image:</p>
  
  <pre><code>iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==
  </code></pre>
  
  <p>and I decoded it using <code>atob()</code>. It turns out to be:</p>
  
  <blockquote>
    <p><code>PNG</code></p>
    
    <p><code>IHDRo&amp;åIDAT×cøÿÿ?Ã Ã Ð1ñXÍõ5ËÑIEND®B`</code></p>
  </blockquote>
  
  <p>Is it possible to get out the color values from this string? (without using <code>&lt;canvas&gt;</code>)</p>
  
  <p>PS: It seems like it is possible since I found a demo:<br>
  　<a href="http://labs.calyptus.eu/JSBin/Demo/Viewer.html" rel="noreferrer">http://labs.calyptus.eu/JSBin/Demo/Viewer.html</a><br>
  　But I am not sure how he did it.</p>