Remove vcl_math calls

[clitk.git] / registration / itkOptMattesMutualInformationImageToImageMetricFor3DBLUTFFD.txx

diff --git a/registration/itkOptMattesMutualInformationImageToImageMetricFor3DBLUTFFD.txx b/registration/itkOptMattesMutualInformationImageToImageMetricFor3DBLUTFFD.txx
index ef4257e6c66f0525a8c15806923a0aaead195ae2..9f717668e4d79e068e67099dc7a432aa68847953 100644 (file)
--- a/registration/itkOptMattesMutualInformationImageToImageMetricFor3DBLUTFFD.txx
+++ b/registration/itkOptMattesMutualInformationImageToImageMetricFor3DBLUTFFD.txx
@@ -768,9 +768,9 @@ MattesMutualInformationImageToImageMetricFor3DBLUTFFD<TFixedImage,TMovingImage>
       // check for non-zero bin contribution
       if( jointPDFValue > 1e-16 &&  movingImagePDFValue > 1e-16 ) {
 
-        double pRatio = vcl_log(jointPDFValue / movingImagePDFValue );
+        double pRatio = std::log(jointPDFValue / movingImagePDFValue );
         if( fixedImagePDFValue > 1e-16) {
-          sum += jointPDFValue * ( pRatio - vcl_log(fixedImagePDFValue ) );
+          sum += jointPDFValue * ( pRatio - std::log(fixedImagePDFValue ) );
         }
 
       }  // end if-block to check non-zero bin contribution
@@ -1093,10 +1093,10 @@ MattesMutualInformationImageToImageMetricFor3DBLUTFFD<TFixedImage,TMovingImage>
       // check for non-zero bin contribution
       if( jointPDFValue > 1e-16 &&  movingImagePDFValue > 1e-16 ) {
 
-        double pRatio = vcl_log(jointPDFValue / movingImagePDFValue );
+        double pRatio = std::log(jointPDFValue / movingImagePDFValue );
 
         if( fixedImagePDFValue > 1e-16) {
-          sum += jointPDFValue * ( pRatio - vcl_log(fixedImagePDFValue ) );
+          sum += jointPDFValue * ( pRatio - std::log(fixedImagePDFValue ) );
         }
 
         if( this->m_UseExplicitPDFDerivatives ) {