[vtkusers] Error in opening dicom image using vtkDICOMImageReader

[Liu_tj]

You can post a request to David Gobbi for his vtkDicomReader.



在2017-06-29，"K O ranjith" <kor1581 at gmail.com> 写道： -----原始邮件-----
发件人:"K O ranjith" <kor1581 at gmail.com>
发送时间:2017年06月29日 星期四
收件人:"Liu_tj" <tjlp at netease.com>
主题:Re: [vtkusers] Error in opening dicom image using vtkDICOMImageReader


Thanks for the solution..

It's working. one difference noted between vtkDICOMImageReader vs vtkDICOMReader is,  vtkDICOMImageReader set the window level & window width from the dicom metadata properly.

But in case of vtkDICOMImageReader, have to manually set....



On Tue, Jun 27, 2017 at 7:13 PM, Liu_tj <tjlp at netease.com> wrote:

Actually vtkDICOMImageReader might fail to parse some DICOM files. As we know, current vtkDICOMImageReader
version does not follow the complete DICOM standard. Maybe you can try vtkDICOMReader by David Gobbi.



在2017-06-27，"K O ranjith" <kor1581 at gmail.com> 写道： -----原始邮件-----
发件人:"K O ranjith" <kor1581 at gmail.com>
发送时间:2017年06月27日 星期二
收件人:"vtkusers" <vtkusers at vtk.org>
主题:[vtkusers] Error in opening dicom image using vtkDICOMImageReader







Hello,

While trying to open a mri dicom image using the ReadDICOM vtk example,   it
showing error in vtkDICOMImageReader. The code properly working with
sample image file supplied with the example, but showing error while supplying
other dicom images as input. The dicom image file given as input  is perfect one, I have tested it with other
dicom viewers like RadiAnt.

This is the error,

ERROR:
In C:\VTK8s\VTK-8.0.0.rc1\IO\Image\vtkDICOMImageReader.cxx, line 270

vtkDICOMImageReader(0000020DC5E9CF70): There was a problem retrieving data from:
E:/Projects/mri/evaluate/Qt/ImageViewer/VTK/VTKtest/ReadDICOM/DICOMData/image.dcm




ERROR:
In C:\VTK8s\VTK-8.0.0.rc1\Common\ExecutionModel\vtkExecutive.cxx, line 784

vtkCompositeDataPipeline
(0000020DC5E45040): Algorithm vtkDICOMImageReader(0000020DC5E9CF70) returned
failure for request: vtkInformation (0000020DC5EF8AA0)

 
Debug: Off 

Modified Time: 2365 

Reference Count: 1 

Registered Events: (none) 

Request: REQUEST_DATA 

FROM_OUTPUT_PORT: 0 

FORWARD_DIRECTION: 0 

ALGORITHM_AFTER_FORWARD: 1

 

And the code used is : 

std::string inputFilename = "E:/mri/image.dcm"; 

  vtkSmartPointer<vtkDICOMImageReader> reader =    

vtkSmartPointer<vtkDICOMImageReader>::New(); 

  reader->SetFileName(inputFilename.c_str());

  reader->Update(); 

  vtkSmartPointer<vtkImageViewer2> imageViewer =

    vtkSmartPointer<vtkImageViewer2>::New();

  imageViewer->SetInputConnection(reader->GetOutputPort());

  vtkSmartPointer<vtkRenderWindowInteractor>renderWindowInteractor =

    vtkSmartPointer<vtkRenderWindowInteractor>::New();

  imageViewer->SetupInteractor(renderWindowInteractor);

  imageViewer->Render();

  imageViewer->GetRenderer()->ResetCamera();

  imageViewer->Render();




  renderWindowInteractor->Start();







Vtk version 8.0 used

Please help to sort out the error


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