filter2 not working with n x 1 matrices

[balwierz]

Hi,

I am getting an error while running filter2 on a 1-column matrix:
EBImage::filter2(matrix(rnorm(10), ncol = 1), filter = matrix(c(0.25, 0.5, 0.25), ncol = 1))

Error in res[idxRowAppend, nC:2] : subscript out of bounds

There is no problem with a "transposed" (horizontal) call:
EBImage::filter2(matrix(rnorm(10), nrow = 1), filter = matrix(c(0.25, 0.5, 0.25), nrow = 1))

Nor is there a problem with applying a 1-column filter on a multi-dimensional data:
EBImage::filter2(matrix(rnorm(10), ncol = 2), filter = matrix(c(0.25, 0.5, 0.25), ncol = 1))

[aoles]

Hi there! :)

Thanks for pointing this out. Actually, the error comes from the upstream function fftwtools::fftw2d. Would you mind reporting this to the maintainer of fftwtools?

Cheers!
Andrzej

[balwierz]

Thanks :)
Reported as krahim/fftwtools#14