You can keep them in their original units, but you will need to use a registration metric that is statistical, e.g. mutual information.<br><br><div class="gmail_quote">On Tue, Jul 3, 2012 at 9:07 PM, Mokri Siti Salasiah <span dir="ltr"><<a href="mailto:ctsalasiah1950@gmail.com" target="_blank">ctsalasiah1950@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div>Hi All;</div><div>I have PET CT matlab mat file which I work previously using MATLAB. I would like to use ITK for registration. Do I need to use the original CT (-1024 to ***) and PET values (0 to XXXXX) or I have to scale them to [0,255]. I read that I need to convert them to raw file and create mhd file. I am also not good in C++; registration but I would like to learn.</div>
<div> </div><div> </div><div>Thank you</div><div> </div><div>Siti_Mustaqim</div>
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