[Insight-users] Using itkScalarImageTextureCalculator - setting andaccessing features

[M.Staring at lumc.nl]

Hi Neal,

A while ago I have rewritten these texture classes, so that less loops
are needed to compute the feature values. The code is also
multi-threaded now. You can inspect the texture.cxx file in the
attachment how to get the output features: you need to use a
GetOutput(i) (at least for the new code). You can download the latest
versions from:

  http://code.google.com/p/praxix/source/checkout

Is this what you need?

Regards,

Marius

> -----Original Message-----
> From: insight-users-bounces at itk.org 
> [mailto:insight-users-bounces at itk.org] On Behalf Of Neal R. Harvey
> Sent: maandag 17 mei 2010 23:02
> To: insight-users at itk.org
> Subject: [Insight-users] Using 
> itkScalarImageTextureCalculator - setting andaccessing features
> 
> I am trying to use itkScalarImageTextureCalculator and am not 
> having much luck.
> Most of it is probably due to the fact that I am not much of 
> a C++ programmer.
> 
> I have included the following code in my program:
> 
>     #include <itkScalarImageTextureCalculator.h>
> 
>     typedef itk::Statistics::ScalarImageTextureCalculator< 
> ImageType > GLCMTextureCalculatorType;
> 
>     GLCMTextureCalculatorType::Pointer GLCMTexCalc = 
> GLCMTextureCalculatorType::New();
> 
>     GLCMTexCalc->SetInput( itkChipImg );
> 
>     // itkChipImg is an image I have previously read in
> 
>     GLCMTexCalc->Compute();
> 
> This compiles without any errors (which I have to say I was 
> quite surprised at).
> 
> But, I haven't been able to fathom out how to either set the 
> features I am interested in calculating (I am assuming one 
> uses SetRequestedFeatures 
> <http://www.itk.org/Doxygen316/html/classitk_1_1Statistics_1_1
ScalarImageTextureCalculator.html#> 277dfe98b302bbbda155f6468d9d05c5>(),
> but precisely how, I don't know)
> or how to access the features that are calculated (I am 
> assuming that one uses GetRequestedFeatures 
> <http://www.itk.org/Doxygen316/html/classitk_1_1Statistics_1_1
ScalarImageTextureCalculator.html#ac5ec7db7d8620119e1dca92f93dd8> 1a>
> (), but, again, how one accesses even the default calculated 
> features I don't know).
> 
> Even just getting the default features seems impossible at present.
> I'd like to be able to access all the available feature 
> vectors, ideally.
> 
> If anyone could provide any assistance, it would be very much 
> appreciated.
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