<div dir="ltr">I checked with ImagePlaneWidget which gives you pixel values on mouse move.It gives me proper HU values (as it is converting automatically).<br><br>Jothy<br><br><div class="gmail_quote">On Tue, Apr 13, 2010 at 8:32 PM, Scott Johnson <span dir="ltr"><<a href="mailto:Scott.Johnson@neuwave.com">Scott.Johnson@neuwave.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">In my files the Pixel Padding value is 63536. As a signed short, that's<br>
-2000.<br>
<br>
Good catch.<br>
<br>
Also, I wasn't expecting vtkDICOMImageReader to perform the HU<br>
computation. It overachieved. That would be a good thing to put in the<br>
documentation.<br>
<br>
Thanks<br>
<font color="#888888"><br>
-- Scott<br>
</font><div class="im"><br>
-----Original Message-----<br>
From: John Drescher [mailto:<a href="mailto:drescherjm@gmail.com">drescherjm@gmail.com</a>]<br>
Sent: Tuesday, April 13, 2010 2:27 PM<br>
To: Scott Johnson<br>
</div><div class="im">Cc: Jothybasu K Selvaraj; <a href="mailto:vtkusers@vtk.org">vtkusers@vtk.org</a><br>
Subject: Re: [vtkusers] Scalar Type of vtkDICOMImageReader<br>
<br>
</div><div><div></div><div class="h5">On Tue, Apr 13, 2010 at 3:20 PM, John Drescher <<a href="mailto:drescherjm@gmail.com">drescherjm@gmail.com</a>><br>
wrote:<br>
> On Tue, Apr 13, 2010 at 3:18 PM, Scott Johnson<br>
> <<a href="mailto:Scott.Johnson@neuwave.com">Scott.Johnson@neuwave.com</a>> wrote:<br>
>> Right now I just want the unsigned short CT numbers as the pixel<br>
values.<br>
>><br>
>><br>
>><br>
>> I'm seeing values as small as -3024.<br>
<br>
<br>
Here is what I get for one LungCT case I just looked at:<br>
0028|0120 Pixel Padding Value = -2000<br>
<br>
This will make pixel values outside of the person -3024.<br>
<br>
John<br>
<br>
John<br>
<br>
>><br>
><br>
> Take a look at the padding value in the dicom<br>
><br>
> John<br>
><br>
<br>
<br>
<br>
--<br>
John M. Drescher<br>
</div></div></blockquote></div><br></div>