[Rtk-users] DRR image generation from 3D CT

[Andreas Andersen]

It actually tells you the problem, you set the suffix of an unsupported
type.
However, it doesn't tell you that ITK can support PNG if you configure and
compile with the CMake option Module_ITKIOPNG=ON (unless they changed it)
I think the type should automatically register after a successful rebuild.

/Andreas

On Wed, 22 Apr 2020, 16:10 Isuru Suranga Wijesinghe, <
isurusuranga.wijesinghe at gmail.com> wrote:

> Hi,
>
> I have tried to save the out image as .png and it gave an error as below.
>
> itk::ImageFileWriterException (0000003E08EFFCC0)   Location: "unknown"
> File: D:\ITK\Source\Modules\IO\ImageBase\include\itkImageFileWriter.hxx
> Line: 128   Description:  Could not create IO object for writing file
> E:/DRRGeneratedDataset/one_CT/DRR_RTK/first.png
> Tried to create one of the following:
> GDCMImageIO
> MetaImageIO
> TIFFImageIO
> You probably failed to set a file suffix, or  set the suffix to an
> unsupported type.
>
> And when changing the output extension to .mha it gives below error.
> 'FirstReconstruction.exe' (Win32): Loaded
> 'C:\Windows\System32\kernel.appcore.dll'.
> Exception thrown at 0x00007FF68D387919 in FirstReconstruction.exe:
> 0xC0000005: Access violation reading location 0xFFFFFFFFFFFFFFFF.
>
> I have attached the source code (.cpp) file for your further reference.
> Please let me know if I have done any mistake.
>
>
> On Tue, Apr 21, 2020 at 4:43 PM Simon Rit <simon.rit at creatis.insa-lyon.fr>
> wrote:
>
>> Projection is centered on point (0,0,0) mm in your input
>> (PhaseImage_01.mha) (as described in the doc). Check where this point is in
>> your input. If it's outside, then you need to modify its origin (in the ITK
>> sense, check ITK doc).
>>
>> On Tue, Apr 21, 2020 at 5:36 PM Isuru Suranga Wijesinghe <
>> isurusuranga.wijesinghe at gmail.com> wrote:
>>
>>> Hi,
>>>
>>> I have built rtkforwardprojections code. And pass the appropriate
>>> parameters to the generated exe from the command line as below.
>>> But there is nothing in the output location. I have attached herewith my
>>> geomtry.xml as well.
>>>
>>> D:/RTK/Build/bin/Release>rtkforwardprojections -g D:/geomtry.xml -i
>>> D:\\Subject_01\\CT\\PhaseImage_01.mha -o D:/_rtk_output.png
>>>
>>> On Mon, Apr 20, 2020 at 8:45 PM Simon Rit <
>>> simon.rit at creatis.insa-lyon.fr> wrote:
>>>
>>>> Hi,
>>>> Look at the doc on the geometry file
>>>> <http://www.openrtk.org/Doxygen/DocGeo3D.html> and rtksimulatedgeometry
>>>> <https://github.com/SimonRit/RTK/tree/master/applications/rtksimulatedgeometry>
>>>> for creating one file. AddProjection
>>>> <http://www.openrtk.org/Doxygen/classrtk_1_1ThreeDCircularProjectionGeometry.html#a39d6a67147cac1f2b5d75f5958a48f9a>
>>>> takes several parameters. Given your scheme, it should look like
>>>> AddProjection(1000, 1536, angle, +/-190 etc)
>>>> It looks like an Elekta geometry given the distances, check the example
>>>> here
>>>> <http://wiki.openrtk.org/index.php/RTK/Examples/ElektaReconstruction>
>>>> if you can get access to the database.
>>>> Simon
>>>>
>>>> On Mon, Apr 20, 2020 at 9:31 PM Isuru Suranga Wijesinghe <
>>>> isurusuranga.wijesinghe at gmail.com> wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> I'm currently looking rtkforwardprojections example [1] to generate
>>>>> DRR images from 3D-CT volumes. My question is  how can I set custom
>>>>> geometric configurations as in the sample attached image ?
>>>>>
>>>>> Can you please help with a relevant example of this. ?
>>>>>
>>>>> [1]
>>>>> https://github.com/SimonRit/RTK/blob/b32cffdc6f9d7a432c50023c370ed996a7985b69/applications/rtkforwardprojections/rtkforwardprojections.cxx
>>>>>
>>>>> Thanks and Best Regards,
>>>>> Isuru
>>>>> _______________________________________________
>>>>> Rtk-users mailing list
>>>>> Rtk-users at public.kitware.com
>>>>> https://public.kitware.com/mailman/listinfo/rtk-users
>>>>>
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