Remove vnl_math dependency into registration codes

[clitk.git] / registration / clitkRecursiveSpatioTemporalMultiResolutionPyramidImageFilter.txx

diff --git a/registration/clitkRecursiveSpatioTemporalMultiResolutionPyramidImageFilter.txx b/registration/clitkRecursiveSpatioTemporalMultiResolutionPyramidImageFilter.txx
index 12e90f8936d6269b27c0c5381dad2c09b5eea9d0..822c4ef7710b9385611f8e9f3969b52569d78886 100644 (file)
--- a/registration/clitkRecursiveSpatioTemporalMultiResolutionPyramidImageFilter.txx
+++ b/registration/clitkRecursiveSpatioTemporalMultiResolutionPyramidImageFilter.txx
@@ -27,8 +27,6 @@
 #include "itkShrinkImageFilter.h"
 #include "itkIdentityTransform.h"
 
-#include "vnl/vnl_math.h"
-
 namespace clitk
 {
 
@@ -147,7 +145,7 @@ RecursiveSpatioTemporalMultiResolutionPyramidImageFilter<TInputImage, TOutputIma
         factors[idim] = this->GetSchedule()[ilevel][idim] /
           this->GetSchedule()[ilevel+1][idim];
         }
-      variance[idim] = vnl_math_sqr( 0.5 * 
+      variance[idim] = std::sqr( 0.5 *
                                      static_cast<float>( factors[idim] ) );
       if( factors[idim] != 1 ) 
         { 
@@ -314,7 +312,7 @@ RecursiveSpatioTemporalMultiResolutionPyramidImageFilter<TInputImage, TOutputIma
       if( factors[idim] > 1 )
         {
         oper->SetDirection( idim );
-        oper->SetVariance( vnl_math_sqr( 0.5 * 
+        oper->SetVariance( std::sqr( 0.5 *
                                          static_cast<float>( factors[idim] ) ) );
         oper->CreateDirectional();
         radius[idim] = oper->GetRadius()[idim];
@@ -352,7 +350,7 @@ RecursiveSpatioTemporalMultiResolutionPyramidImageFilter<TInputImage, TOutputIma
       if( factors[idim] > 1 )
         {
         oper->SetDirection( idim );
-        oper->SetVariance( vnl_math_sqr( 0.5 * 
+        oper->SetVariance( std::sqr( 0.5 *
                                          static_cast<float>( factors[idim] ) ) );
         oper->CreateDirectional();
         radius[idim] = oper->GetRadius()[idim];
@@ -450,7 +448,7 @@ RecursiveSpatioTemporalMultiResolutionPyramidImageFilter<TInputImage, TOutputIma
   for( idim = 0; idim < TInputImage::ImageDimension; idim++ )
     {
     oper->SetDirection(idim);
-    oper->SetVariance( vnl_math_sqr( 0.5 * static_cast<float>(
+    oper->SetVariance( std::sqr( 0.5 * static_cast<float>(
                                        this->GetSchedule()[refLevel][idim] ) ) );
     oper->SetMaximumError( this->GetMaximumError() );
     oper->CreateDirectional();