[Insight-users] Gradient Difference Metric

[Hauke Heibel]

Aviv Hurvitz wrote:
> All the metrics I know in ITK go "down". There was no special 
> documentation, ...
As a matter of fact there is. Take a look at 
http://www.itk.org/Doxygen34/html/classitk_1_1GradientDifferenceImageToImageMetric.html
It states "after passing the squared difference through a function of 
type 1/(1+x)".

And I would not expect the functionality to change since there are many 
people who got the usage right and whose code would break if the class's 
functionality would change.

- Hauke

-- 
Tim Hauke Heibel
Computer Aided Medical Procedures (CAMP)
fon: +49 89 289 19427
fax: +49 89 289 17059