[ITK Community] [Insight-users] NthElement Image output

[Bradley Lowekamp]

Hello,

If I needed to perform a dot product I would use the BinaryFunctor infrastructure.

You may be able to just use the MultiplyImageFilter, if the pixel's "*" operator is the dot product.

Otherwise, I'd create a new functor, and then use then the template parameters for the BinaryFunctorImageFilter.

Sample filter usage:
http://www.itk.org/Wiki/ITK/Examples/ImageProcessing/BinaryFunctorImageFilter

There are a lot of functor to choose from:
http://www.itk.org/Doxygen/html/namespaceitk_1_1Functor.html

Here is an example of a BinaryFunctor:
https://github.com/Kitware/ITK/blob/master/Modules/Filtering/ImageIntensity/include/itkAddImageFilter.h#L33

Brad


On Nov 5, 2013, at 8:02 PM, jmerkow <jmerkow at gmail.com> wrote:

> Thank You!  I didn't know this class existed. 
> I take it that this adapter is used to perform vector operations at the
> image level?
> My end goal is to perform a dot product of these gradients with a surface
> normal.  Is this adapter usually used in something like this fashion?
> 
> i.e. in combination with something like this:
> http://www.itk.org/Wiki/ITK/Examples/Math/DotProduct
> 
> 
> 
> Jameson
> 
> 
> 
> --
> View this message in context: http://itk-users.7.n7.nabble.com/NthElement-Image-output-tp32683p32685.html
> Sent from the ITK - Users mailing list archive at Nabble.com.
> _____________________________________
> Powered by www.kitware.com
> 
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
> 
> Kitware offers ITK Training Courses, for more information visit:
> http://www.kitware.com/products/protraining.php
> 
> Please keep messages on-topic and check the ITK FAQ at:
> http://www.itk.org/Wiki/ITK_FAQ
> 
> Follow this link to subscribe/unsubscribe:
> http://www.itk.org/mailman/listinfo/insight-users

_____________________________________
Powered by www.kitware.com

Visit other Kitware open-source projects at
http://www.kitware.com/opensource/opensource.html

Kitware offers ITK Training Courses, for more information visit:
http://www.kitware.com/products/protraining.php

Please keep messages on-topic and check the ITK FAQ at:
http://www.itk.org/Wiki/ITK_FAQ

Follow this link to subscribe/unsubscribe:
http://www.itk.org/mailman/listinfo/insight-users