On Mon, 17 Jan 2022 at 17:59, Patrick Dupre <pdupre@xxxxxxx> wrote:
Hello,
I get the following error:
error: feval: function 'fftconv2' not found
octave-image provide fftconv2.m
can I use it? If yes, How?
Are you trying to use octave's fftconv2 function? In Fedora35 with octave and octave-image installed using dnf:
octave:8> pkg load image
pkg load image
octave:9> help fftconv2
help fftconv2
'fftconv2' is a function from the file /usr/share/octave/packages/image-2.12.0/fftconv2.m
-- Function File: fftconv2 (A, B)
-- Function File: fftconv2 (V1, V2, A)
-- Function File: fftconv2 (..., SHAPE)
Convolve 2 dimensional signals using the FFT.
This method is faster but less accurate than CONV2 for large A and
B. It also uses more memory. A small complex component will be
introduced even if both A and B are real.
See also: conv2, fftconv, fft, ifft.
George N. White III
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