[Rtk-users] cast itk:::Image to itk::CudaImage

[Simon Rit]

Are you using the HEAD version of the git ? Because I recently corrected a
bug in the Graft function (commit b2d73642ce171ba9890af2c107a1a31f923454b5).
Simon

On Wed, Jan 30, 2019 at 5:05 PM tao sun <colddiesun at gmail.com> wrote:

> Hi Simon,
>
> CUDA_HAVE_GPU is on. So is CUDA_FOUND. I can run examples like rtkfdk with
> gpu on without any problem though,
> By the way I am using CUDA 9.2.88.
>
> Tao
>
>
>
>
>
> Simon Rit <simon.rit at creatis.insa-lyon.fr> 於 2019年1月30日 週三 上午1:25寫道：
>
>> Hi,
>> No, not really. In my experience, this occurs mainly when you don't have
>> a GPU properly configured for CUDA. Can you check the value of
>> CUDA_HAVE_GPU in cmake ? If it's OFF, then this is indeed the problem.
>> Simon
>>
>> On Wed, Jan 30, 2019 at 1:23 AM tao sun <colddiesun at gmail.com> wrote:
>>
>>> Hi again,
>>>
>>> Finally I got time to work on this. I was able to compile the program
>>> this time using the Graft() function. However, there's a runtime error when
>>> I run the program:
>>>
>>>
>>> /home/tsun/bin/RTK-1.4.0/utilities/ITKCudaCommon/src/itkCudaDataManager.cxx:38
>>> @ unknown : Cuda Error #3
>>>     terminate called after throwing an instance of 'itk::ExceptionObject'
>>>     what():
>>> /home/tsun/bin/RTK-1.4.0/utilities/ITKCudaCommon/src/itkCudaDataManager.cxx:38:
>>>     Cuda Error # 3
>>>     Aborted
>>>
>>> It happens when a new gpu backprojector is created:
>>>     bp = rtk::CudaRayCastBackProjectionImageFilter::New();
>>>
>>> Any insights for this?
>>>
>>> Thanks,
>>> Tao
>>>
>>> tao sun <colddiesun at gmail.com> 於 2019年1月19日 週六 下午8:51寫道：
>>>
>>>> Thank you all! I will give a try using your solutions.
>>>> Tao
>>>>
>>>> Simon Rit <simon.rit at creatis.insa-lyon.fr> 於 2019年1月17日 週四 上午12:26寫道：
>>>>
>>>>> Hi,
>>>>> That's one solution. Two other:
>>>>> - graft the output to a Cuda image
>>>>> itk::CudaImage<float, 3>::Pointer cuImg = itk::CudaImage<float,
>>>>> 3>::New();
>>>>> cuImg->Graft(projectionReader->GetOutput())
>>>>> - use the rtk::ImportImageFilter which is templated over image type to
>>>>> allow precisely this (I used it in Gate here
>>>>> <https://github.com/OpenGATE/Gate/blob/develop/source/digits_hits/src/GateFixedForcedDetectionActor.cc#L1583>
>>>>> ).
>>>>> Best regards,
>>>>> Simon
>>>>>
>>>>> On Wed, Jan 16, 2019 at 11:06 PM Andreas Andersen <
>>>>> andreasga22 at gmail.com> wrote:
>>>>>
>>>>>> Hi Tao,
>>>>>>
>>>>>> I think you want the CastImageFilter
>>>>>> <https://itk.org/Doxygen/html/classitk_1_1CastImageFilter.html> from
>>>>>> ITK.
>>>>>>
>>>>>> Something like this:
>>>>>> using castToImageType = itk::CastImageFilter<itk:::Image<float,3>,
>>>>>> itk::CudaImage<float,3>>;
>>>>>> typename castToImageType::Pointer castfilter = castToImageType::New();
>>>>>> castfilter->SetInput(projectionReader->GetOutput());
>>>>>> castfilter->Update();
>>>>>> auto cuda_image = castfilter->GetOutput();
>>>>>>
>>>>>> Best regards Andreas
>>>>>>
>>>>>> __________________________________
>>>>>>
>>>>>> Andreas Gravgaard Andersen
>>>>>>
>>>>>> Department of Oncology,
>>>>>>
>>>>>> Aarhus University Hospital
>>>>>>
>>>>>> Nørrebrogade 44,
>>>>>>
>>>>>> 8000, Aarhus C
>>>>>>
>>>>>> Mail:     agravgaard at protonmail.com
>>>>>>
>>>>>> Cell:      +45 3165 8140
>>>>>>
>>>>>>
>>>>>> On Wed, 16 Jan 2019 at 22:59, tao sun <colddiesun at gmail.com> wrote:
>>>>>>
>>>>>>> Hi,
>>>>>>>
>>>>>>> I have read in some image using  itk::ImportImageFilter.
>>>>>>>  ImportFilterType::Pointer projectionReader =
>>>>>>> ImportFilterType::New();
>>>>>>> ...
>>>>>>>  projectionReader->Update();
>>>>>>>
>>>>>>> The type of the image is itk:::Image<float,3>. I wonder if there is
>>>>>>> any way I can cast it to itk::CudaImage<float,3>?
>>>>>>> In rtkforwardprojections.cxx the imageReaderType is defined as
>>>>>>> CudaImageType so there is no such problem.
>>>>>>>
>>>>>>> Thanks,
>>>>>>> Tao
>>>>>>> _______________________________________________
>>>>>>> Rtk-users mailing list
>>>>>>> Rtk-users at public.kitware.com
>>>>>>> https://public.kitware.com/mailman/listinfo/rtk-users
>>>>>>>
>>>>>> _______________________________________________
>>>>>> Rtk-users mailing list
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>>>>>>
>>>>> _______________________________________________
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>>
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