UCL / UCL/STIR

experimental transformation problems

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Dominant language
C++
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Description

There are currently no tests for the transformations. I did some manual checks.

Identity transformation has edge plane problems

rigid_object_transform_image --interpolation_order 1 mytest.hv test_image_5.hv "{{1,0,0,0},{0,0,0}}"

resulted in a difference in 1 end-plane (in fact, the mytest.hv end-plane was zero, while all others planes are identical). This disappears when using --interpolation_order 0. Same effect observed with do_transpose.

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Research direction

Start by reproducing the reported case with rigid_object_transform_image using mytest.hv and test_image_5.hv, first with --interpolation_order 1 and then 0. Check the edge-plane difference and the corresponding do_transpose behavior. Done should include tests covering the observed transformation results and a clear explanation or correction of the discrepancy.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
computer-vision
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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