[Scilab-users] ?==?utf-8?q? ?==?utf-8?q? ?= Install image processing toolbo

[Antoine Monmayrant]

Hi,

I faced case #1: Ubuntu 16.04 with recent kernel.
The thing with Atoms is that you don't go and check the website, you just install and are left wondering why this module just killed your scilab install. It's a fairly bad first experience and I think it turns away some potential users.
Do you think it would be possible to design your atoms module to warn users of the issue and workaround?
This could be done in the "IPCV.start" script.

Antoine

 
Le Mardi, Mars 21, 2017 02:34 CET, Tan Chin Luh <chinluh at tritytech.com> a écrit: 
 
> Hi,
> 
> Great that you've get it works.
> The crashed was caused by 2 reasons:
> 
> 1. If you're running latest kernel (e.g Ubuntu 16.04), the crash is 
> caused by the older libgomp.so library distributed under Scilab 6 
> binary. This problem could be resolved with the OpenCV installed as 
> along the installation the latest libgomp.so would be installed to the 
> system as well.
> 
> 2. If you're running an older version (e.g Ubuntu 14.04) , the crash is 
> caused during the loading of the IPCV library which is compiled with 
> newer version of gcc.
> 
> Usually in linux, a lot of codes/program will just ask the user to 
> download the source and recompile on the system itself. This will 
> eliminate the issue of crashing. Another way is packaging the libraries 
> into the software package, which could be a more complicated process for 
> the developer.
> 
> For the problem you faced, it is definitely not the atoms portal issue. 
> Atoms portal does not handle the third parties library an atoms-module 
> required, and the dependencies of the module which could also crashed 
> with the version of libraries carried by the Scilab binary.
> 
> So with all these problem, I tried to come out with the "less" effort 
> way for the user to make it works on linux, still causing crash for the 
> first time, but with extra 1-2 steps will solve the problem.
> 
> Thanks.
> 
> Regards,
> Chin Luh
> 
> On 20/3/2017 6:39 PM, Antoine Monmayrant wrote:
> > Answering my own message: It seems that core dump & segfault are almost part of the install process described here: http://scilabipcv.tritytech.com/2017/03/17/installation-of-scilab-ipcv/
> > I followed these recommendations and I can restart scilab without a segfault.
> >
> > I have the feeling there is something wrong with such an install process (install prerequisite, use atoms, crash, do some hand tweaking, pray).
> > As far as I remember, image processing toolboxes have always been a pain to install.
> > Why is this the case?
> > Is the atoms system inadequate?
> >
> > Antoine
> >   
> > Le Lundi, Mars 20, 2017 11:21 CET, "Antoine Monmayrant" <antoine.monmayrant at laas.fr> a écrit:
> >   
> >> Le Samedi, Mars 18, 2017 16:03 CET, Adailton Júnior <adailtonjn68 at gmail.com> a écrit:
> >>   
> >>> Hello,
> >>>
> >>> atomsInstall("IPCV") didn't work right away, and I tried in more than
> >>> one computer. Although, after usingatomsSystemUpdate(), it worked.
> >>> So, thanks for the quick reply. And good work. Now, I can proceed with
> >>> my research.
> >>
> >> Well I was less lucky than you: this package crashes a fresh install of scilab 6.0:
> >>
> >> tar -xvf scilab-6.0.0.bin.linux-x86_64.tar.gz
> >> scilab-6.0.0/bin/scilab
> >>
> >> --> atomsInstall('IPCV')
> >> Examen du dépôt http://atoms.scilab.org/6.0 ... Terminé
> >>
> >>   ans  =
> >>
> >> !IPCV  1.0  allusers  SCI/contrib/IPCV/1.0  I  !
> >>
> >> AtomsAutoload() // segfault & core dumped
> >>
> >>
> >> Antoine
> >>
> >>> Best regards,
> >>>
> >>> -- 
> >>> Adailton Júnior
> >>> +5569992549337
> >>>
> >>>
> >>>
> >>>
> >>> On 18/03/2017 09:06, Tan Chin Luh wrote:
> >>>> hi,
> >>>>
> >>>> you might want to try:
> >>>> --> atomsInstall("IPCV")
> >>>>
> >>>> a new module which is base on SIVP with more functions, just uploaded
> >>>> about a day ago.
> >>>>
> >>>> Cheers!
> >>>>
> >>>> rgds,
> >>>> CL
> >>>>
> >>>>
> >>>> On 18/3/2017 1:47 AM, Viktor Goryainov wrote:
> >>>>> Hello!
> >>>>>
> >>>>> 17.03.2017 18:43, Adailton Júnior пишет:
> >>>>>
> >>>>>> --> atomsInstall("SIP")
> >>>>> As far as I can see from atoms.scilab.org, neither SIP, nor SIVP
> >>>>> (Scilab Image and Video Processing toolbox) are available at all for
> >>>>> Scilab 6.0 right now. The latter has less time since last update
> >>>>> released (0.5.3.2 in 2014), but it was still intended for Scilab 5.x.
> >>>>>
> >>>>> Best regards,
> >>>>> Viktor
> >>>>> _______________________________________________
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> >>>>> users at lists.scilab.org
> >>>>> http://lists.scilab.org/mailman/listinfo/users
> >>>>
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