title: Get pixel data from DICOM file .dcm
body: <p>How can i get the pixel data from .dcm file as an array variable using DCMTK library? 
  I'm using <a href="http://support.dcmtk.org/redmine/projects/dcmtk/wiki/Howto_AccessingCompressedData" rel="nofollow">this</a> site for preference and it didn't work, the data result is very different from the original picture.</p>