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

[Simon Rit]

Hi,
Can you check this thread
<https://discourse.itk.org/t/is-png-no-longer-supported/2893/16>? A similar
problem was solved there. Note that I don't think that PNG can support
float types.
Simon

On Wed, Apr 22, 2020 at 4:59 PM Isuru Suranga Wijesinghe <
isurusuranga.wijesinghe at gmail.com> wrote:

> The problem is in the RTK I think. I was able to successfully save the
> output image as the .png extension with an ITK eample.
> I just checked  with CMake GUI and it doesn't contain a such module.
> Please see the attachment. Any alternative approach is there ?
>
> On Wed, Apr 22, 2020 at 3:37 PM Andreas Andersen <andreasga22 at gmail.com>
> wrote:
>
>> 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
>>>>>>>
>>>>>> _______________________________________________
>>> Rtk-users mailing list
>>> Rtk-users at public.kitware.com
>>> https://public.kitware.com/mailman/listinfo/rtk-users
>>>
>>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://public.kitware.com/pipermail/rtk-users/attachments/20200422/0fb3add6/attachment.html>