title: DNG to PNG conversion using ImageMagick
body: <p>I have captured a burst of 5 dng images from a Nexus6P for scientific imaging. The pixel intensities from the image will be mapped to my measurement value. For further processing the 5 dng images are averaged to reduce the noise and converted to png. I am using the below code to achieve this</p>
  
  <pre><code>convert dng:*.dng -average out.png
  </code></pre>
  
  <p>I would like to know if any processing is being done on the dng image, changing the pixel intensity values while conversion as it would affect my final calibration. </p>
  
  <p>Version: ImageMagick 7.0.3-4, Windows 10</p>