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paremters can not be found.  So I just want to know what's the difference
between the ITKN4 package and the N4 in ITK4.0?  Though I think they should
be the same.  If it is different, which one I should use?

Thank you in advance.

-- 
Wenwu Zhu
IRCAD
University of Strasbourg, France
Email address: cool.wenwu at gmail.com

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Hi everyone,<br><br>There are some problems when I learn the N4ITK. Firstly=
, in the paper-&quot;N4ITK:Nick&#39;s N3 ITK Implementation For MRI Bias Fi=
eld Correction&quot; , I found there are 9 parameters (m_MaskMabel, m_numbe=
rOfHistogamBins, m_WeinerFilterNoise, m_BiasFieldFullWitdthAtHalfMaximum...=
 ,)need to set, it can also be found in the N4ITK package.=A0 However, in t=
he lastest ITK4.0, in the project-ITKBiasCorrectionTestDriver, I open the C=
MakeLists.txt, and some code is as followiing:<br>

=A0<br>itk_add_test(NAME itkN4BiasFieldCorrectionImageFilterTest1<br>=A0=A0=
=A0=A0=A0 COMMAND ITKBiasCorrectionTestDriver<br>=A0=A0=A0=A0=A0 --compare =
DATA{Baseline/N4ControlPoints_3D.nii.gz}<br>=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
=A0=A0=A0=A0 ${ITK_TEST_OUTPUT_DIR}/N4ControlPoints_3D.nii.gz<br>

=A0=A0=A0 itkN4BiasFieldCorrectionImageFilterTest<br>=A0=A0=A0 2<br>=A0=A0=
=A0 DATA{${ITK_DATA_ROOT}/Input/HeadMRVolumeCompressed.mha}=A0=A0=A0=A0=A0=
=A0=A0=A0=A0=A0=A0 # input<br>=A0=A0=A0 ${ITK_TEST_OUTPUT_DIR}//N4ControlPo=
ints_3D.nii.gz=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 # <b>cont=
rol point lattice=A0 .</b> , I also can not understand the mean of this par=
ameter<br>

<br>=A0=A0=A0 3=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 =A0 =A0 =A0=A0 # shr=
ink factor<br>=A0=A0=A0 10x10x10=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 # number of itera=
tions<br>=A0=A0=A0 none=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 # mask<br>

=A0=A0=A0 150=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 # spline distance<br=
>=A0=A0=A0 )<br><br>From above, we can see some paramters are changed and d=
ifferent, some paremters can not be found.=A0 So I just want to know what&#=
39;s the difference between the ITKN4 package and the N4 in ITK4.0?=A0 Thou=
gh I think they should be the same.=A0 If it is different, which one I shou=
ld use?=A0 <br>

<br>Thank you in advance.<br clear=3D"all"><br>-- <br><div>Wenwu Zhu</div>
<div>IRCAD<br>University of Strasbourg, France<br>Email address: <a href=3D=
"mailto:cool.wenwu at gmail.com" target=3D"_blank">cool.wenwu at gmail.com</a></d=
iv><br>

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