Authors belong to:
- University of LYON http://www.universite-lyon.fr/
- - Léon Bérard cancer center http://oncora1.lyon.fnclcc.fr
+ - Léon Bérard cancer center http://www.centreleonberard.fr
- CREATIS CNRS laboratory http://www.creatis.insa-lyon.fr
This software is distributed WITHOUT ANY WARRANTY; without even
- BSD See included LICENSE.txt file
- CeCILL-B http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html
- ======================================================================-====*/
+ ===========================================================================**/
// clitk
#include "clitkDD.h"
if (m_OutputIsoSpacing != -1) { // apply isoSpacing
for(unsigned int i=0; i<dim; i++) {
m_OutputSpacing[i] = m_OutputIsoSpacing;
- // I use ceil to be sure not to miss a slice
- m_OutputSize[i] = (int)ceil(inputSize[i]*inputSpacing[i]/m_OutputSpacing[i]);
+ // floor() is used to intentionally reduce the number of slices
+ // because, from a clinical point of view, it's better to
+ // remove data than to add data that privously didn't exist.
+ if(inputSpacing[i]*m_OutputSpacing[i]<0)
+ itkExceptionMacro( << "Input and output spacings don't have the same signs, can't cope with that" );
+ m_OutputSize[i] = (int)floor(inputSize[i]*inputSpacing[i]/m_OutputSpacing[i]);
}
} else {
if (m_OutputSpacing[0] != -1) { // apply spacing, compute size
for(unsigned int i=0; i<dim; i++) {
- m_OutputSize[i] = (int)ceil(inputSize[i]*inputSpacing[i]/m_OutputSpacing[i]);
+ if(inputSpacing[i]*m_OutputSpacing[i]<0)
+ itkExceptionMacro( << "Input and output spacings don't have the same signs, can't cope with that" );
+ // see comment above for the use of floor()
+ m_OutputSize[i] = (int)floor(inputSize[i]*inputSpacing[i]/m_OutputSpacing[i]);
}
} else {
if (m_OutputSize[0] != 0) { // apply size, compute spacing
m_OutputSize[l] = inputSize[l];
m_OutputSpacing[l] = inputSpacing[l];
}
-
+
// Set Size/Spacing
OutputImagePointer outputImage = this->GetOutput(0);
// OutputImageRegionType region;