<br>Hi Serena,<br><br><br>Instead of :<br><br><font size="3"><span style="font-size: 11px;"><p style="margin: 0px; font-family: Menlo; font-style: normal; font-variant: normal; font-weight: normal; font-size: 11px; line-height: normal; font-size-adjust: none; font-stretch: normal;">
<span style="white-space: pre-wrap;"><font face="verdana, sans-serif"> </font></span><font face="verdana, sans-serif">spatialObjectMask->SetImage( maskReader->GetOutput() );</font></p>
<p style="margin: 0px; font-family: Menlo; font-style: normal; font-variant: normal; font-weight: normal; font-size: 11px; line-height: normal; font-size-adjust: none; font-stretch: normal;"><span style="white-space: pre-wrap;"><font face="verdana, sans-serif"> </font></span><font face="verdana, sans-serif">metric->SetFixedImageMask( spatialObjectMask);</font></p>
</span></font><br><br>You should do:<br><br> maskReader->Update();<br><font size="3"><span style="font-size: 11px;"><p style="margin: 0px; font-family: Menlo; font-style: normal; font-variant: normal; font-weight: normal; font-size: 11px; line-height: normal; font-size-adjust: none; font-stretch: normal;">
<span style="white-space: pre-wrap;"><font face="verdana, sans-serif"> </font></span><font face="verdana, sans-serif">spatialObjectMask->SetImage( maskReader->GetOutput() );</font></p>
<p style="margin: 0px; font-family: Menlo; font-style: normal; font-variant: normal; font-weight: normal; font-size: 11px; line-height: normal; font-size-adjust: none; font-stretch: normal;"><span style="white-space: pre-wrap;"><font face="verdana, sans-serif"> </font></span><font face="verdana, sans-serif">metric->SetFixedImageMask( spatialObjectMask);</font></p>
</span></font><br><br><br> Regards,<br><br><br> Luis<br><br><br>-----------------------------------------------------------<br><div class="gmail_quote">On Wed, Jun 9, 2010 at 11:39 AM, sere f <span dir="ltr"><<a href="mailto:serenaf33@gmail.com">serenaf33@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><font face="verdana, sans-serif">Hi All,</font><div><font face="verdana, sans-serif">I am registering CT and MRI of the brain with Bspline Transformation, Mattes-MI, </font><span style="font-size: 11px;"><font face="verdana, sans-serif">RegularStepGradientDescentOptimizer.</font></span></div>
<div><font size="3"><span style="font-size: 11px;"><font face="verdana, sans-serif">The registration works fine.</font></span></font></div><div><font size="3"><span style="font-size: 11px;"><font face="verdana, sans-serif"><br>
</font></span></font></div><div><font size="3"><span style="font-size: 11px;"><font face="verdana, sans-serif">But when I set:</font></span></font></div>
<div><font size="3"><span style="font-size: 11px;"><font face="verdana, sans-serif"><br></font></span></font></div><div><font size="3"><span style="font-size: 11px;"><p style="margin: 0px; font-family: Menlo; font-style: normal; font-variant: normal; font-weight: normal; font-size: 11px; line-height: normal; font-size-adjust: none; font-stretch: normal;">
<span style="white-space: pre-wrap;"><font face="verdana, sans-serif"> </font></span><font face="verdana, sans-serif">spatialObjectMask->SetImage( maskReader->GetOutput() );</font></p>
<p style="margin: 0px; font-family: Menlo; font-style: normal; font-variant: normal; font-weight: normal; font-size: 11px; line-height: normal; font-size-adjust: none; font-stretch: normal;"><span style="white-space: pre-wrap;"><font face="verdana, sans-serif"> </font></span><font face="verdana, sans-serif">metric->SetFixedImageMask( spatialObjectMask);</font></p>
<div><font face="verdana, sans-serif"><br></font></div></span></font></div><div><font size="3"><span style="font-size: 11px;"><font face="verdana, sans-serif">The Registration ends with 0 iteration and I get this message:</font></span></font></div>
<div><font size="3"><span style="font-size: 11px;"><font face="verdana, sans-serif"><br></font></span></font></div><div><font size="3"><span style="font-size: 11px;"><font face="verdana, sans-serif">Optimizer stop condition = RegularStepGradientDescentOptimizer: Gradient magnitude tolerance met after 0 iterations. Gradient magnitude (0) is less than gradient magnitude tolerance (0.001).</font></span></font></div>
<div><font size="3"><span style="font-size: 11px;"><font face="verdana, sans-serif"><br></font></span></font></div><div><font size="3"><span style="font-size: 11px;"><font face="verdana, sans-serif">My mask is a binary image (0,255). Is it wrong?</font></span></font></div>
<div><font size="3"><span style="font-size: 11px;"><font face="verdana, sans-serif">How can I register using a mask for Fixed Image?</font></span></font></div>
<div><span style="font-size: 11px;"><font face="verdana, sans-serif">any idea?</font></span></div><div><font size="3"><span style="font-size: 11px;"><font face="verdana, sans-serif"><br>
</font></span></font></div><div><font size="3"><span style="font-size: 11px;"><font face="verdana, sans-serif">Thank you very much.</font></span></font></div>
<div><font size="3"><span style="font-size: 11px;"><font face="verdana, sans-serif"><br></font></span></font></div><div><font size="3"><span style="font-size: 11px;"><font face="verdana, sans-serif">Serena.</font></span></font></div>
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