<div dir="auto"><div>It actually tells you the problem, you set the suffix of an unsupported type.</div><div dir="auto">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)</div><div dir="auto">I think the type should automatically register after a successful rebuild.</div><div dir="auto"><br></div><div dir="auto">/Andreas<br><br><div class="gmail_quote" dir="auto"><div dir="ltr" class="gmail_attr">On Wed, 22 Apr 2020, 16:10 Isuru Suranga Wijesinghe, <<a href="mailto:isurusuranga.wijesinghe@gmail.com">isurusuranga.wijesinghe@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Hi,</div><div><br></div>I have tried to save the out image as .png and it gave an error as below.<br><br>itk::ImageFileWriterException (0000003E08EFFCC0) Location: "unknown"<br>File: D:\ITK\Source\Modules\IO\ImageBase\include\itkImageFileWriter.hxx<br>Line: 128 Description: Could not create IO object for writing file<br>E:/DRRGeneratedDataset/one_CT/DRR_RTK/first.png <br>Tried to create one of the following:<br>GDCMImageIO<br>MetaImageIO<br>TIFFImageIO<br>You probably failed to set a file suffix, or set the suffix to an unsupported type.<br><br>And when changing the output extension to .mha it gives below error.<br>'FirstReconstruction.exe' (Win32): Loaded 'C:\Windows\System32\kernel.appcore.dll'. <br>Exception thrown at 0x00007FF68D387919 in FirstReconstruction.exe: 0xC0000005: Access violation reading location 0xFFFFFFFFFFFFFFFF.<br><br>I have attached the source code (.cpp) file for your further reference. Please let me know if I have done any mistake.<br><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Apr 21, 2020 at 4:43 PM Simon Rit <<a href="mailto:simon.rit@creatis.insa-lyon.fr" target="_blank" rel="noreferrer">simon.rit@creatis.insa-lyon.fr</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">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).<br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Apr 21, 2020 at 5:36 PM Isuru Suranga Wijesinghe <<a href="mailto:isurusuranga.wijesinghe@gmail.com" target="_blank" rel="noreferrer">isurusuranga.wijesinghe@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Hi,</div><div><br></div>I have built rtkforwardprojections code. And pass the appropriate parameters to the generated exe from the command line as below.<br>But there is nothing in the output location. I have attached herewith my geomtry.xml as well.<div><br>D:/RTK/Build/bin/Release>rtkforwardprojections -g D:/geomtry.xml -i D:\\Subject_01\\CT\\PhaseImage_01.mha -o D:/_rtk_output.png<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Apr 20, 2020 at 8:45 PM Simon Rit <<a href="mailto:simon.rit@creatis.insa-lyon.fr" target="_blank" rel="noreferrer">simon.rit@creatis.insa-lyon.fr</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Hi,</div><div>Look at the <a href="http://www.openrtk.org/Doxygen/DocGeo3D.html" target="_blank" rel="noreferrer">doc on the geometry file</a> and <a href="https://github.com/SimonRit/RTK/tree/master/applications/rtksimulatedgeometry" target="_blank" rel="noreferrer">rtksimulatedgeometry</a> for creating one file. <a href="http://www.openrtk.org/Doxygen/classrtk_1_1ThreeDCircularProjectionGeometry.html#a39d6a67147cac1f2b5d75f5958a48f9a" target="_blank" rel="noreferrer">AddProjection</a> takes several parameters. Given your scheme, it should look like</div><div>AddProjection(1000, 1536, angle, +/-190 etc)</div><div>It looks like an Elekta geometry given the distances, check the example <a href="http://wiki.openrtk.org/index.php/RTK/Examples/ElektaReconstruction" target="_blank" rel="noreferrer">here</a> if you can get access to the database.</div><div>Simon<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Apr 20, 2020 at 9:31 PM Isuru Suranga Wijesinghe <<a href="mailto:isurusuranga.wijesinghe@gmail.com" target="_blank" rel="noreferrer">isurusuranga.wijesinghe@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Hi,</div><div><br></div><div>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 ? </div><div><br></div><div>Can you please help with a relevant example of this. ?<br></div><div><br></div><div>[1] <a href="https://github.com/SimonRit/RTK/blob/b32cffdc6f9d7a432c50023c370ed996a7985b69/applications/rtkforwardprojections/rtkforwardprojections.cxx" target="_blank" rel="noreferrer">https://github.com/SimonRit/RTK/blob/b32cffdc6f9d7a432c50023c370ed996a7985b69/applications/rtkforwardprojections/rtkforwardprojections.cxx</a></div><div><br></div><div><div>Thanks and Best Regards,</div><div>Isuru</div></div></div>
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