[Insight-users] Possible bug in MinimumMaximumImageFilter and MinimumMaximumImageCalculator

[Julien Jomier]

Hi Parag,

Bill Lorensen fixed it on March 1st (after the 1.2 release)
Thanks for the report.

Julien

-----Original Message-----
From: insight-users-admin@public.kitware.com
[mailto:insight-users-admin@public.kitware.com] On Behalf Of Parag =
Chandra
Sent: Monday, April 07, 2003 1:39 PM
To: ITK Mailing List
Subject: [Insight-users] Possible bug in MinimumMaximumImageFilter and
MinimumMaximumImageCalculator


Hi,

I think I've caught this before in StatisticsImageFilter, but neither of =
the
two classes mentioned in the subject line seem to calculate the minimum
value correctly for an image that contains negative values. I think the
following two lines in both classes:

  m_Maximum =3D NumericTraits<InputPixelType>::min() ;
  m_Minimum =3D NumericTraits<InputPixelType>::max() ;

need to be changed to the following:

  m_Minimum =3D NumericTraits<RealType>::max();
  m_Maximum =3D NumericTraits<RealType>::NonpositiveMin();

-Parag