<div dir="ltr">Hi Bradley,<div>I have <span style="color:rgb(80,0,80);font-size:12.8px">tried casting to sitkFloat64, but the same error message :</span></div><div><span style="color:rgb(80,0,80);font-size:12.8px"><br></span></div><div><span style="color:rgb(80,0,80);font-size:12.8px"> Error in f(...) : Exception in SITK - check warning messages In addition: Warning message:<br>In f(...) :<br> Exception thrown in SimpleITK TransformToDisplacementFieldFilter_Execute: /tmp/RtmpE4PobR/devtools25774a9d4940/SimpleITK-SimpleITKRInstaller-5f821a0/SITK/Build/SimpleITK-build/Code/BasicFilters/src/sitkTransformToDisplacementFieldFilter.cxx:178:<br>sitk::ERROR: Unexpected error converting transform! Possible miss matching dimensions!<br></span></div><div><span style="color:rgb(80,0,80);font-size:12.8px"><br></span></div><div><span style="color:rgb(80,0,80);font-size:12.8px">do you have a code example of 2D registration involving two png in simpleITK ? it could help me to test where the problem comes from <br></span></div><div><span style="color:rgb(80,0,80);font-size:12.8px"><br></span></div><div><span style="color:rgb(80,0,80);font-size:12.8px">Cheers,</span></div><div><span style="color:rgb(80,0,80);font-size:12.8px"><br></span></div><div><span style="color:rgb(80,0,80);font-size:12.8px">Fabien<br></span></div><div><span style="color:rgb(80,0,80);font-size:12.8px"><br></span></div></div><div class="gmail_extra"><br><div class="gmail_quote">2017-08-18 19:05 GMT-03:00 Lowekamp, Bradley (NIH/NLM/LHC) [C] [via ITK - Users] <span dir="ltr"><<a href="/user/SendEmail.jtp?type=node&node=38645&i=0" target="_top" rel="nofollow" link="external">[hidden email]</a>></span>:<br><blockquote style='border-left:2px solid #CCCCCC;padding:0 1em' class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">
Have you tried casting to sitkFloat64?
<br></span><div class="m_-5305669711468421315shrinkable-quote"><div><div class="h5"><div class='shrinkable-quote'><br>> On Aug 18, 2017, at 12:49 PM, FWagner <<a href="http:///user/SendEmail.jtp?type=node&node=38644&i=0" rel="nofollow" link="external" target="_blank">[hidden email]</a>> wrote:
<br>>
<br>> Hi,
<br>> I have some trouble using the demons_registration from
<br>> <a href="https://insightsoftwareconsortium.github.io/SimpleITK-Notebooks/R_html/66_Registration_Demons.html" rel="nofollow" link="external" target="_blank">https://<wbr>insightsoftwareconsortium.<wbr>github.io/SimpleITK-Notebooks/<wbr>R_html/66_Registration_Demons.<wbr>html</a><br>> I have tested the example and it work well. however when i used the function
<br>> demons_registration with two image .png that i have generated i have some
<br>> strange errors. See the R code and the error below
<br>>
<br>> # generate two image of a square slighty differents
<br>> library(raster)
<br>> library(imager)
<br>> r=raster(ncol=600,nrow=600)
<br>> r=setValues(r,1)
<br>> im1=as.cimg(r)
<br>> im1[200:300,200:300]=0
<br>> plot(im1)
<br>>
<br>> im2=as.cimg(r)
<br>> im2[210:320,210:320]=0
<br>> plot(im2)
<br>>
<br>> save.image(im1,"square1.png")
<br>> save.image(im2,"square2.png")
<br>>
<br>> library(SimpleITK)
<br>>
<br>> cntrl <- ReadImage("square1.png")
<br>> img1 = Cast(cntrl,"sitkFloat32")
<br>> img1
<br>>
<br>> cntrl <- ReadImage("square2.png")
<br>> img2 = Cast(cntrl,"sitkFloat32")
<br>> img2
<br>>
<br>> # the demons_registration function can be downloaded here :
<br>> <a href="https://insightsoftwareconsortium.github.io/SimpleITK-Notebooks/R_html/66_Registration_Demons.html" rel="nofollow" link="external" target="_blank">https://<wbr>insightsoftwareconsortium.<wbr>github.io/SimpleITK-Notebooks/<wbr>R_html/66_Registration_Demons.<wbr>html</a><br>>
<br>> tx <- demons_registration(fixed_<wbr>image = img1, moving_image = img2)
<br>> Show Traceback
<br>>
<br>> Rerun with Debug
<br>> Error in f(...) : Exception in SITK - check warning messages In addition:
<br>> Warning message:
<br>> In f(...) :
<br>> Exception thrown in SimpleITK TransformToDisplacementFieldFi<wbr>lter_Execute:
<br>> /tmp/RtmpE4PobR/<wbr>devtools25774a9d4940/<wbr>SimpleITK-SimpleITKRInstaller-<wbr>5f821a0/SITK/Build/SimpleITK-<wbr>build/Code/BasicFilters/src/<wbr>sitkTransformToDisplacementFie<wbr>ldFilter.cxx:178:
<br>> sitk::ERROR: Unexpected error converting transform! Possible miss matching
<br>> dimensions!
<br>>
<br>>
<br>> Does anyone have an idea of the problem ?
<br>>
<br>> Thank you very much,
<br>>
<br>>
<br>> Fabien
<br>>
<br>>
<br>>
<br>>
<br>> --
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