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<DIV><FONT face=Verdana color=#000000>Hi, Jian,</FONT></DIV>
<DIV><FONT face=Verdana color=#000000></FONT> </DIV>
<DIV><FONT face=Verdana color=#000000>Because m_Metric->GetFixedImage()
return a constant object which could not be changed, the </FONT><FONT
face=Verdana color=#000000>origin could not be set.</FONT></DIV>
<DIV><PRE><CODE><FONT face=Verdana color=#000000>HTH,</FONT></CODE></PRE><PRE><CODE><FONT face=Verdana color=#000000>Fucang</FONT></CODE></PRE></DIV>
<DIV><FONT face=Verdana color=#0000ff size=2></FONT> </DIV>
<DIV><FONT face=Verdana color=#0000ff size=2></FONT> </DIV>
<DIV> <FONT face=Verdana size=2> </DIV>
<DIV>
<HR>
</DIV></FONT>
<DIV><FONT face=Verdana><FONT size=2>On 2006-06-26 11:19:21 Jian
Wu</FONT></FONT></DIV>
<DIV><FONT face=Verdana><FONT size=2>Subject: [Insight-users]
Questions about ImageRegistrationMethod - How tokeep user-defined image
origin?</FONT></FONT></DIV>
<DIV><FONT face=Verdana size=2></FONT> </DIV>
<DIV><FONT face=Verdana size=2>Dear ITK users:<BR><BR>I'm working on a 2D-3D
image registration projection. The input 2D image has a user-specified image
origin. The origin was set by using the following
code.<BR><BR> imageReader2D->GetOutput()->SetOrigin(
origin2D); <BR><BR>The change was successful and it has been verified in
debugging. However, I noticed the origin was slightly changed by the code during
the initialization of the registration. That was happened in Line 210 in
itkImageRegistrationMethod.txx (version 1.24). The code
is<BR><BR> m_Metric->Initialize();<BR><BR>I also noticed
the author did try to recover the user-specified orgin in the code immediately
following above one.<BR><BR> // Recover user-defined image origin
<BR> const short Dimension =
GetImageDimension<FixedImageType>::ImageDimension;<BR> double
fixedOrg[Dimension];<BR> for(int i = 0; i < Dimension;
i++)<BR> fixedOrg[i] = fixedOrigin[i];<BR>
//m_FixedImage->SetOrigin(fixedOrg); <BR>
//m_Metric->GetFixedImage()->SetOrigin(fixedOrg);<BR><BR>I don't know why
the last two lines were commented out. I removed the comment characters and
recomplied the codes. But I got the following compiling errors. <BR><BR>error
C2663: 'itk::ImageBase<VImageDimension>::SetOrigin' : 3 overloads have no
legal conversion for 'this'
pointer<BR>
with<BR>
[<BR>
VImageDimension=3<BR> ]<BR><BR>I'm
using Microsoft Visual C++ 2005 standard edition and Window XP professional.
<BR><BR>Any help and suggestions will be appreciated!<BR><BR>Jian
Wu<BR><BR></FONT></DIV></BODY></HTML>