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[bug] #45

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milasudril opened this issue Dec 1, 2022 · 1 comment
Open

[bug] #45

milasudril opened this issue Dec 1, 2022 · 1 comment
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bug Something isn't working

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@milasudril
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Build info

Id: 93434b95fcd7c1bdf22c23f221195120
VCS revision id: a1523c2
Compiler: g++ (Ubuntu 11.3.0-1ubuntu1~22.04) 11.3.0

Information about the problem

Bug type: unexpected behavior

Detailed description

DFT filter is broken when at least one of width or height is odd. The resulting image has zero values at the boundary, thus periodic conditions are not honored.

Expected behavior

Boundary conditions should be periodic

Screenshots

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Platform

  • CPU architecture: x86-64 (zen+)
  • Operating System: (Mint 21 vanessa)
  • Amount of RAM: 32 G
@milasudril milasudril added the bug Something isn't working label Dec 1, 2022
@milasudril
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Possible solutions: https://stackoverflow.com/questions/5915125/fftshift-ifftshift-c-c-source-code/19752002#19752002

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@milasudril