Ticket #549 (closed defect: wontfix)
r.mfilter should _respect_ i.fft outputs for use with i.ifft
|Reported by:||nikos||Owned by:||grass-dev@…|
|Keywords:||i.fft, r.mfilter, i.ifft||Cc:||nikos.alexandris@…|
# fft of some raster image
i.fft in=a real=a_real imaginary=a_imaginary
# do something with the real_fft_image, e.g. r.mfilter
r.mfilter in=a_real filter=some_filter out=a_real_filtered
# perform i.ifft
i.ifft real=a_real_filtered imaginary=a_imaginary output=a_via_fft_filtered
ERROR: Unable to open real-image in the 'cell_misc' directory. Raster map probably wasn't created by i.fft
Is it fair enough to ask for this support?
Or is there a reason why _r.mfilter_ alters the i.fft-products in such a way that _i.ifft_ can't handle?