Re: fttconv2

["George N. White III" <gnwiii@xxxxxxxxx>]

On Wed, 19 Jan 2022 at 03:44, Patrick Dupre <pdupre@xxxxxxx> wrote:

Yes, exactly.

Actually the package FFTConvolution call fftconv2 (https://github.com/jeremyfix/FFTConvolution)

 

In convolution_benchmark.cc

feval ("fftconv2", functionArguments, 1);

 

but, I get

error: feval: function 'fftconv2' not found

 

I do not know how to call the octave function from a c++ program.

It is because a library si not linked?

The convolution_benchmark.cc was last updated in 2013.  Octave has changed a lot

since then.  

 

 

 

The author of the package (jeremy.fix) did not answer to my request.

Can't really blame someone for not keeping on top of old projects.   Wonder if someone

has forked the code.  

  

Sent: Tuesday, January 18, 2022 at 9:33 PM
From: "George N. White III" <gnwiii@xxxxxxxxx>
To: "Community support for Fedora users" <users@xxxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: fttconv2

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
 

_______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure

_______________________________________________
users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx
To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx
Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/
List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx
Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure

--

George N. White III

_______________________________________________
users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx
To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx
Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/
List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx
Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure