[vtkusers] vtkDICOMImageReader and an extrange error,..

[Miguel Angel Rodriguez Florido]

	Hi Dongqing,

	thank you very much for your mail, but actually this is not my problem. 
I don't know what is happening.

	Perhaps, you are right and the dicom data that I'm trying to read is 
"extrange",..in any case, I don't understand why I got:

	"No memory allocated for image data!"

	Best.

Dongqing Chen wrote:
> Hello, Miguel:
> 
>  The C code patch has been tested just recently, it reads all the all 
> the DICOM Image, and shows slice-by-slice an independent window.
> 
>  it works well for me. Hopefully it helps.
> 
> //----------------------------------------------------------------------------------------------------------------------------------------- 
> 
>    vtkDICOMImageReader *reader = vtkDICOMImageReader::New();
>    vtkImageViewer *viewer = vtkImageViewer::New();
> 
>     reader->SetDirectoryName(dirName);//change to the folder where your 
> docom images are saved.
> 
>    viewer->SetInput(reader->GetOutput());
>    reader->Update();
> 
>    double *dicom_range = reader->GetOutput()->GetScalarRange(); //max 
> and mim CT number in Hounsfiled
> 
>    int num_slices = viewer->GetWholeZMax ();
> 
>     for (int i=0;i<=num_slices;i++)
>     {
> 
>      int dicom_width=reader->GetWidth();
>       int dicom_height=reader->GetHeight();
>       double *dicom_spacing=reader->GetPixelSpacing();
>       const char *dicom_patient_name=reader->GetPatientName();
> 
>    printf("-------------------------------------------------\n");
>    printf("This Is Slice Number %d out of Total %d\n", i,num_slices);
>    printf("Some Basic Info for Slice Number %d \n", i);
>    printf("Weight=%d \n", dicom_width);
>    printf("Height=%d \n", dicom_height);
>    printf("Spatial Resoltion=[%5.3f,%5.3f,%5.3f]\n", 
> dicom_spacing[0],dicom_spacing[1],dicom_spacing[2]);
>    printf("-------------------------------------------------\n");
> 
> 
>       viewer->SetZSlice(i);
>       viewer->GetRenderer()->ResetCameraClippingRange();
>       viewer->SetColorWindow(400);
>       viewer->SetColorLevel(128);
> 
>       viewer->Render();
> }
> 
>     printf("Max and Min Pixel Values for the Whole 
> Dataset=[%9.3f,%9.3f]\n", dicom_range[1],dicom_range[0]);
> 
>     reader->Delete();
>     viewer->Delete();
> //---------------------------------------------------------------------------------------------------------------------------------- 
> 
> 
> 
> Best Wishes,
> ----------------------------------------------------------------------------- 
> 
> Dongqing Chen, Ph.D.
> Computer Vision & Image Processing (CVIP) Lab
> Department of Electrical & Computer Engineering
> Speed School of Engineering
> University of Louisville
> Louisville, KY, 40292
> U.S.A
> email: dqchen at cvip.louisville.edu
> phone: 1-502-852-2789 (Lab)
>             1-502-852-6130 (Office)
> ---------------------------------------------------------------------------- 
> 
> ----- Original Message ----- From: "Miguel Angel Rodriguez Florido" 
> <marf at itccanarias.org>
> To: <vtkusers at vtk.org>
> Sent: Friday, March 13, 2009 9:01 AM
> Subject: [vtkusers] vtkDICOMImageReader and an extrange error,..
> 
> 
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> 
> 


-- 
Miguel Angel Rodríguez Florido
Departamento de Ingeniería del Software
División de Investigación y Desarrollo Tecnológico
INSTITUTO TECNOLOGICO DE CANARIAS, S.A. - GOBIERNO DE CANARIAS
URL: www.itccanarias.org Tlfno: +34 928 727548, Fax: +34 928 727517

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