<div dir="ltr"><div><div><div><div>Sorry, I might press the wrong key.<br><div>Hi Matt again.<br></div>You were fully right about setting the background/foreground values for the filter. I wasn't using them because I followed the examples and there was no reference to them. Now my shape related functions are working.<br><br></div>As for the textures, I attach my code so that anyone can see if i am doing something wrong:<br><br>typedef itk::Statistics::ScalarImageToTextureFeaturesFilter<TInputImage> TextureFilterType;<br>typedef typename TextureFilterType::Pointer TextureFilterPtr;<br>typedef typename TextureFilterType::FeatureValueVector FeatureValueVectorType;<br><br>TextureFilterPtr textureFilter = TextureFilterType::New();<br>textureFilter->SetInput(_input);<br>textureFilter->Update();<br> <br>FeatureValueVectorType* output = textureFilter->GetFeatureMeans();<br> <br>cout << "Energy = " << (*output)[0]) << endl;<br>cout << "Entropy " << (*output)[1]);<br>cout << "LocalHomogeneity = " << (*output)[3]) << endl;<br>cout << "Inertia = " << (*output)[4]) << endl;<br>cout << "ClusterShade " << (*output)[5]) << endl;<br>cout << "ClusterProminence = " << (*output)[6]) << endl;<br></div><br>Sincereously, I thank you a lot your help.<br></div>Regards.<br></div>/Francisco<br><div><div><div><br><br></div></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">2015-01-15 18:26 GMT+01:00 Francisco Lopez de la Franca <span dir="ltr"><<a href="mailto:franciscolopezdelafranca@gmail.com" target="_blank">franciscolopezdelafranca@gmail.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Hi Matt again.<br></div>You were fully right about setting the background/foreground values for the filter. I <br></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">2015-01-15 16:41 GMT+01:00 Matt McCormick <span dir="ltr"><<a href="mailto:matt.mccormick@kitware.com" target="_blank">matt.mccormick@kitware.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Francisco,<br>
<br>
There is definitely something wrong with the textures features. It is<br>
not possible to know what is going on without more details, though.<br>
<br>
Matt<br>
<br>
On Thu, Jan 15, 2015 at 1:32 AM, Francisco Lopez de la Franca<br>
<div><div><<a href="mailto:franciscolopezdelafranca@gmail.com" target="_blank">franciscolopezdelafranca@gmail.com</a>> wrote:<br>
> Hi Matt,<br>
> Thanks a lot for your answers. I'll try this afternoon what you suggest<br>
> regarding the shape filter, but what do you think about my results as for<br>
> the texture filter?<br>
> Regards.<br>
> /Francisco<br>
><br>
> 2015-01-15 2:30 GMT+01:00 Matt McCormick <<a href="mailto:matt.mccormick@kitware.com" target="_blank">matt.mccormick@kitware.com</a>>:<br>
>><br>
>> Hi Francisco,<br>
>><br>
>> Great to hear about the progress!<br>
>><br>
>> The itk::BinaryImageToShapeLabelMapFilter requires a binary input,<br>
>> which should have an integer pixel type, like unsigned char or<br>
>> unsigned short. It is important to set the BackgroundValue and<br>
>> ForegroundValue [1] to get this filter to work correctly.<br>
>><br>
>> HTH,<br>
>> Matt<br>
>><br>
>> [1]<br>
>> <a href="http://www.itk.org/Doxygen/html/classitk_1_1BinaryImageToShapeLabelMapFilter.html" target="_blank">http://www.itk.org/Doxygen/html/classitk_1_1BinaryImageToShapeLabelMapFilter.html</a><br>
>><br>
>> On Wed, Jan 14, 2015 at 5:05 PM, Francisco Lopez de la Franca<br>
>> <<a href="mailto:franciscolopezdelafranca@gmail.com" target="_blank">franciscolopezdelafranca@gmail.com</a>> wrote:<br>
>> > Hi again.<br>
>> > I fixed all the errors and got my library, now ready to be tested.<br>
>> > It contains an encapsulation, on the one hand, of the class<br>
>> > itkBinaryImageToShapeLabelMapFilter in order to get image shape<br>
>> > descriptors<br>
>> > of a 3D binary image, and on the other hand, the same for the class<br>
>> > itkScalarImageToTextureFeaturesFilter to get image texture features of a<br>
>> > 3D<br>
>> > scalar image.<br>
>> ><br>
>> > I pass as input image to both classes a binary 3D Nifti image<br>
>> > (150x150x150)<br>
>> > containing a cylinder where the inside voxels are 255 and the outside<br>
>> > voxels<br>
>> > are 0.<br>
>> ><br>
>> > As for the shape issue, it's very strange to me that the call to<br>
>> > GetNumberOfLabelObjects on a itk::LabelMap object returns a value of 0.<br>
>> > The<br>
>> > main code is as follows:<br>
>> ><br>
>> > binaryImageToShapeLabelMapFilter->SetInput(_input);<br>
>> > binaryImageToShapeLabelMapFilter->ComputePerimeterOn();<br>
>> > binaryImageToShapeLabelMapFilter->Update();<br>
>> ><br>
>> > LabelMapType::Pointer labelMap =<br>
>> > binaryImageToShapeLabelMapFilter->GetOutput();<br>
>> ><br>
>> > int nrOfLabelObjects = labelMap->GetNumberOfLabelObjects();<br>
>> ><br>
>> ><br>
>> > And, as for the texture features, the result of the filter does not seem<br>
>> > to<br>
>> > be very logic:<br>
>> ><br>
>> > Energy = 1<br>
>> > Entropy = 0<br>
>> > Correlation = 1<br>
>> > Local Homogeneity = 0<br>
>> > Inertia = 0<br>
>> > Cluster Shade = 0<br>
>> > Cluster Prominence = 0<br>
>> ><br>
>> > I've also tested this with a scalar 3D Nifti image and the results are<br>
>> > the<br>
>> > same.<br>
>> ><br>
>> > And the question is: What kind of image do I have to pass to the filters<br>
>> > so<br>
>> > that the code would return a more logic expected answer?<br>
>> ><br>
>> > Thank you very much in advance.<br>
>> > My best regars.<br>
>> > /Francisco<br>
>> ><br>
>> > 2015-01-10 22:38 GMT+01:00 Matt McCormick <<a href="mailto:matt.mccormick@kitware.com" target="_blank">matt.mccormick@kitware.com</a>>:<br>
>> >><br>
>> >> Hi Francisco,<br>
>> >><br>
>> >> Nice to hear about the progress!<br>
>> >><br>
>> >> You will need to link your library to the ITK libraries:<br>
>> >><br>
>> >> target_link_libraries( mylibrary ${ITK_LIBRARIES} )<br>
>> >><br>
>> >> HTH,<br>
>> >> Matt<br>
>> >><br>
>> >> On Sat, Jan 10, 2015 at 4:16 PM, Francisco Lopez de la Franca<br>
>> >> <<a href="mailto:franciscolopezdelafranca@gmail.com" target="_blank">franciscolopezdelafranca@gmail.com</a>> wrote:<br>
>> >>><br>
>> >>> Thanks to your previous answer the problem was solved, but another one<br>
>> >>> has come out. It occurs when linking to create the library. It gives<br>
>> >>> an<br>
>> >>> undefined reference to itk::ExceptionObject::ExceptionObject... as you<br>
>> >>> can<br>
>> >>> see below.<br>
>> >>> What it is strange to me is that before including explicit template<br>
>> >>> instantiation, I created the library without errors, and now that I<br>
>> >>> include<br>
>> >>> that, I get this error.<br>
>> >>> I'll appreciate very much any help.<br>
>> >>><br>
>> >>> Linking CXX shared library libTFM_Features.dll<br>
>> >>><br>
>> >>><br>
>> >>> CMakeFiles\TFM_Features.dir/objects.a(TFM_Features.cpp.obj):TFM_Features.cpp:(.t<br>
>> >>><br>
>> >>><br>
>> >>> ext$_ZN3itk21MemoryAllocationErrorC1ERKSsjS2_S2_[_ZN3itk21MemoryAllocationErrorC<br>
>> >>> 1ERKSsjS2_S2_]+0x35): undefined reference to<br>
>> >>> `itk::ExceptionObject::ExceptionObj<br>
>> >>> ect(std::string const&, unsigned int, std::string const&, std::string<br>
>> >>> const&)'<br>
>> >>><br>
>> >>><br>
>> >>> CMakeFiles\TFM_Features.dir/objects.a(TFM_Features.cpp.obj):TFM_Features.cpp:(.t<br>
>> >>><br>
>> >>><br>
>> >>> ext$_ZN3itk21MemoryAllocationErrorC1ERKSsjS2_S2_[_ZN3itk21MemoryAllocationErrorC<br>
>> >>> 1ERKSsjS2_S2_]+0x40): undefined reference to `vtable for<br>
>> >>> itk::MemoryAllocationEr<br>
>> >>> ror'<br>
>> >>><br>
>> >>><br>
>> >>> C:/CV/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/4.8.2/../../../../x86_64-w64-min<br>
>> >>> gw32/bin/ld.exe:<br>
>> >>> CMakeFiles\TFM_Features.dir/objects.a(TFM_Features.cpp.obj): ba<br>
>> >>> d reloc address 0x40 in section<br>
>> >>> `.text$_ZN3itk21MemoryAllocationErrorC1ERKSsjS2_<br>
>> >>> S2_[_ZN3itk21MemoryAllocationErrorC1ERKSsjS2_S2_]'<br>
>> >>> collect2.exe: error: ld returned 1 exit status<br>
>> >>> SRC\CMakeFiles\TFM_Features.dir\build.make:219: recipe for target<br>
>> >>> 'SRC/libTFM_Fe<br>
>> >>> atures.dll' failed<br>
>> >>> mingw32-make[2]: *** [SRC/libTFM_Features.dll] Error 1<br>
>> >>> CMakeFiles\Makefile2:77: recipe for target<br>
>> >>> 'SRC/CMakeFiles/TFM_Features.dir/all'<br>
>> >>> failed<br>
>> >>> mingw32-make[1]: *** [SRC/CMakeFiles/TFM_Features.dir/all] Error 2<br>
>> >>> Makefile:74: recipe for target 'all' failed<br>
>> >>> mingw32-make: *** [all] Error 2<br>
>> >>><br>
>> >>><br>
>> >>> 2015-01-09 21:02 GMT+01:00 Matt McCormick<br>
>> >>> <<a href="mailto:matt.mccormick@kitware.com" target="_blank">matt.mccormick@kitware.com</a>>:<br>
>> >>>><br>
>> >>>> Hi Francisco,<br>
>> >>>><br>
>> >>>> In order for the templates to be available in the library, they must<br>
>> >>>> be explicitly instantiated [1].<br>
>> >>>><br>
>> >>>> HTH,<br>
>> >>>> Matt<br>
>> >>>><br>
>> >>>> [1] <a href="http://www.cplusplus.com/articles/1C75fSEw/" target="_blank">http://www.cplusplus.com/articles/1C75fSEw/</a><br>
>> >>>><br>
>> >>>> On Fri, Jan 9, 2015 at 2:59 PM, Francisco Lopez de la Franca<br>
>> >>>> <<a href="mailto:franciscolopezdelafranca@gmail.com" target="_blank">franciscolopezdelafranca@gmail.com</a>> wrote:<br>
>> >>>> > Hi.<br>
>> >>>> > I' like to create a library containing, for example, one template<br>
>> >>>> > class with<br>
>> >>>> > a number of methods.<br>
>> >>>> > I've programmed a simple example and the compilation and generation<br>
>> >>>> > of<br>
>> >>>> > the<br>
>> >>>> > library goes fine. I use the cmake "add_library" command for<br>
>> >>>> > generating the<br>
>> >>>> > library.<br>
>> >>>> ><br>
>> >>>> > The problem arises at the moment of testing the library. I get an<br>
>> >>>> > undefined<br>
>> >>>> > reference for every method in the template class.<br>
>> >>>> ><br>
>> >>>> > I've downloaded a tool to look in the contents (functions) of<br>
>> >>>> > dynamic<br>
>> >>>> > libraries, and there is no function in the library. If I add<br>
>> >>>> > another<br>
>> >>>> > class<br>
>> >>>> > (not a template class), then, this tool shows me only the functions<br>
>> >>>> > in<br>
>> >>>> > this<br>
>> >>>> > latter class.<br>
>> >>>> ><br>
>> >>>> > Has anyone ever come across with this problem?<br>
>> >>>> ><br>
>> >>>> > Thanks a lot in advance.<br>
>> >>>> > Regards<br>
>> >>>> > /Francisco<br>
>> >>>> ><br>
>> >>>> > _____________________________________<br>
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>> >>><br>
>> >>><br>
>> >><br>
>> ><br>
><br>
><br>
</div></div></blockquote></div><br></div>
</div></div></blockquote></div><br></div>