[vtkusers] Difference in images displayed in vtkImageViewer2 and vtkResliceImageViewer

[K O ranjith]

Hello,

Thanks for the support.

As I mentioned in my question I have tried to set the window level and
width from the dicom metadata to both the viewer’s using the api s

    m_vtkImViewer->SetColorLevel(dDefaultWinWidth);

    m_vtkImViewer->SetColorWindow(dDefaultWinLevel);

but the result from vtkResliceImageViewer is different than other viewers,
ie vtkImageViewer2 and other dicom viewer applications.



While connecting the vtkResliceImageViewer with vtkDICOMReader with api
“SetInputData””, have .



So I tried with the method
vtkResliceImageViewer->SetInputConnection(vtkDICOMReader
->GetOutputPort());,  then vtk showing error message "Use SetInputData
instead.", but the images are displaying image almost same as (but not
exact )other viewers. But then also, while setting the window level and
width from to the default value in the dicom metadata, the image display
again getting distorted. But the vtkImageViewer2 have same proper result
all the time.

I used 2d dicom images for testing.

Why this happening? What are the basic difference in both vtk viewers in
displaying images and setting window level and width?




On Wed, Sep 20, 2017 at 6:23 PM, Sankhesh Jhaveri <
sankhesh.jhaveri at kitware.com> wrote:

> The difference in the two images seems to be window width and level.
> Ensure that the values are same in the vtkImageResliceViewer.
> ​
>
> On Wed, Sep 20, 2017 at 7:37 AM K O ranjith <kor1581 at gmail.com> wrote:
>
>> Hello,
>> While displaying same dicom images in vtkResliceImageViewer and
>> vtkImageViewer2, it showing images with a different window level and window
>> width.
>> I also tried to get the window level and window width values from dicom
>> metadata and set in both the viewers. Then the vtkImageViewer2 giving same
>> result as like other dicom viewer applications(like RadiAnt), but
>> vtkResliceImageViewer showing a differnt result from others.
>> I need to use vtkResliceImageViewer in my application.
>> why images displaying in different manner in vtkResliceImageViewer and
>> vtkImageViewer2?
>> Can get the same result with vtkResliceImageViewer as like
>> vtkImageViewer2?
>> Do need to perform any configuration in vtkResliceImageViewer?
>>
>> (Attached the screenshot of screens displayed same dicom image with
>> vtkResliceImageViewer and vtkImageViewer2)
>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at http://www.kitware.com/
>> opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>
>> Follow this link to subscribe/unsubscribe:
>> http://public.kitware.com/mailman/listinfo/vtkusers
>>
> --
> Sankhesh Jhaveri *Sr. Research & Development Engineer* | Kitware
> <http://www.kitware.com/> | (518) 881-4417
> ​
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://public.kitware.com/pipermail/vtkusers/attachments/20170920/be99f335/attachment.html>