MantisBT - ITK
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IDProjectCategoryView StatusDate SubmittedLast Update
0012236ITKITKpublic2011-05-29 17:382011-06-23 22:36
ReporterLuis Ibanez 
Assigned ToNick Tustison 
PrioritynormalSeverityminorReproducibilityhave not tried
StatusclosedResolutionfixed 
PlatformOSOS Version
Product VersionITK-4-A3 
Target VersionFixed in Version 
Resolution Date
Sprint
Sprint Statusbacklog
Summary0012236: itkConvolutionImageFilter has boundary conditions problems and shifts with even size kernels
DescriptionWhen using a kernel of even size, the output image has a diagonal shift on the convolution output.
Steps To Reproducebuild attached file.
Additional Informationhttp://www.itk.org/pipermail/insight-users/2011-May/041229.html [^]
TagsNo tags attached.
Relationships
Attached Filescxx convolve.cxx (2,330) 2011-05-29 17:40
https://public.kitware.com/Bug/file/3909/convolve.cxx
Issue History
Date ModifiedUsernameFieldChange
2011-05-29 17:38Luis IbanezNew Issue
2011-05-29 17:40Luis IbanezFile Added: convolve.cxx
2011-05-29 17:42Luis IbanezAssigned To => Nick Tustison
2011-05-29 17:42Luis IbanezStatusnew => assigned
2011-06-07 20:37Cory W QuammenCategory(No Category) => ITK
2011-06-08 07:27Cory W QuammenNote Added: 0026754
2011-06-08 11:43Cory W QuammenNote Added: 0026764
2011-06-23 22:36Cory W QuammenNote Added: 0026960
2011-06-23 22:36Cory W QuammenStatusassigned => closed
2011-06-23 22:36Cory W QuammenResolutionopen => fixed

Notes
(0026754)
Cory W Quammen   
2011-06-08 07:27   
I suggest padding the kernel by one pixel on even-size dimensions on the low-index side of the image so that the actual kernel used in the convolution has only odd-size dimensions. I'm working on a patch implementing this suggestion and will post on gerrit (and link here).
(0026764)
Cory W Quammen   
2011-06-08 11:43   
Proposed patch posted here: http://review.source.kitware.com/#change,1835 [^]
(0026960)
Cory W Quammen   
2011-06-23 22:36   
Fixed in git commit 399f419d0a02064a0722e1df820d5b3f3161caba.