[ITK] when using itkImageFileReader to read dicom image , itoccurs assertion failure:pixeltype_debug==pixeltype.

[Jon Haitz Legarreta]

Hi Guirong,
I'd try updating the reader before getting its output and surrounding it
with a try/catch [1], so that you can be sure that it's (not) the reader
which is producing the error.
I'd then do the same with the next filter.

In addition, that will give you a better description of the error.

HTH,
JON HAITZ

[1] http://itk.org/Wiki/ITK/Examples/SimpleOperations/TryCatch



On 21 March 2015 at 09:22, 转身转瞬 <1549917255 at qq.com> wrote:

> Dear Jon,
>     Thanks for your reply.
>     I only specified pixel type in the this line(typedef
> itk::Image<unsigned char,2> ImageType;),and after receiving your reply, I
> changed it to unsigned short, short, and signed short which was not working
> unfortunately.
>     Have any other thoughts about it?
>
> Guirong Liu
>
> ------------------ 原始邮件 ------------------
>  *发件人:* "Jon Haitz Legarreta";<jhlegarreta at vicomtech.org>;
> *发送时间:* 2015年3月20日(星期五) 凌晨0:11
> *收件人:* "转身转瞬"<1549917255 at qq.com>;
> *抄送:* "community"<community at itk.org>;
> *主题:* Re: [ITK] when using itkImageFileReader to read dicom image ,
> itoccurs assertion failure:pixeltype_debug==pixeltype.
>
> Dear Guirong,
>  DICOM images most commonly use short pixel types.
>
> The error says that there is some problem with the pixel type you
> specified.
>
> HTH,
> JON HAITZ
>
>
>
> On 19 March 2015 at 16:44, 转身转瞬 <1549917255 at qq.com> wrote:
>
>> Hi,everyone,
>>      I'm using ITK to read CTA image(it's a kind of dicom image),and when
>> it runs to the update ,the following error happens:
>>   in command line:Assertion failed:pixeltype_debug==pixeltype.
>> file..\..\..\..\..\InsightToolkit-4.4.0\Modules\IO\GDCM\src\itkGDCMImageIO.cxx,line
>> 287
>>
>> in a window:
>> Debug Error!
>> Program:F:\..\..\..\helloworld7.exe
>> R6010
>> -abort() has been called
>> (Press Retry to debug the application)
>>
>>
>> My code is as follows:
>> #include"itkImage.h"
>> #include"itkImageFileReader.h"
>> #include"itkImageToVTKImageFilter.h"
>> #include<itkGDCMImageIO.h>
>> #include"vtkImageViewer.h"
>> #include"vtkRenderWindowInteractor.h"
>> #include"vtkSmartPointer.h"
>> #include"vtkImageFlip.h"
>> #include"vtkRenderer.h"
>> #include"vtkImageActor.h"
>> #include"vtkCamera.h"
>> #include"vtkImageMapper.h"
>> using namespace std;
>> int main()
>> {
>>  typedef itk::Image<unsigned char,2> ImageType;
>>  typedef itk::ImageFileReader<ImageType> ReaderType;
>>  ReaderType::Pointer reader=ReaderType::New();
>>  //获得DICOM文件读取对象
>>  typedef itk::GDCMImageIO ImageIOType;
>>  ImageIOType::Pointer gdcmImageIO=ImageIOType::New();
>>  //Filter of itk image data to vtk image data;
>>  typedef itk::ImageToVTKImageFilter<ImageType> FilterType;
>>  FilterType::Pointer connector=FilterType::New();
>>  //获得DICOM文件名并读取DICOM文件;
>>
>>  char*DICOMName="F://c++projects//helloworld6//1.3.12.2.1107.5.1.4.60540.30000013102023122056200010862";
>>  reader->SetFileName(DICOMName);
>>  reader->SetImageIO(gdcmImageIO);
>>  cout<<"done0"<<endl;
>>  //ITK到VTK转化
>>  connector->SetInput(reader->GetOutput());
>>  cout<<"done1"<<endl;
>>  *connector->Update();//This is the place where error occurs!*
>>  cout<<"done2"<<endl;
>>  vtkSmartPointer<vtkImageFlip>flip=vtkSmartPointer<vtkImageFlip>::New();
>>  //vtkSmartPointer<vtkImageMapper>
>>  flip->SetInput(connector->GetOutput());
>>  flip->SetFilteredAxis(1);
>>  //需要进行上下翻转才能正确显示;
>>  flip->Update();
>>
>>
>>  vtkSmartPointer<vtkImageActor>actor=vtkSmartPointer<vtkImageActor>::New();
>>  actor->SetInput(flip->GetOutput());
>>  actor->InterpolateOff();
>>  vtkSmartPointer<vtkRenderer>renderer=vtkSmartPointer<vtkRenderer>::New();
>>  renderer->AddActor(actor);
>>
>>
>>  vtkSmartPointer<vtkRenderWindow>renderWindow=vtkSmartPointer<vtkRenderWindow>::New();
>>  renderWindow->AddRenderer(renderer);
>>  vtkRenderWindowInteractor*iren=vtkRenderWindowInteractor::New();
>>  iren->SetRenderWindow(renderWindow);
>>  iren->Initialize();
>>  iren->Start();
>>  return 0;
>> }
>> If anyone know how to fix this, could you please just help me?
>> Thanks a lot.
>>
>> Guirong Liu
>>
>>
>> _______________________________________________
>> Community mailing list
>> Community at itk.org
>> http://public.kitware.com/mailman/listinfo/community
>>
>>
>
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