[Insight-users] problem while loading corrupted files

[Jakub Bican]

Hello,
all back - the developers that complained about this problem discovered the
error out of ITK.

Thanks for help and BIG SORRY for bothering you with such no-problems that
stem from our lack of diligence.

Jakub



2009/5/21 Bill Lorensen <bill.lorensen at gmail.com>

> Jakub,
>
> Can you point us to some of the "bad" images? If we can reproduce the
> problem,, I'm confident we can provide a satisfactory solution.
>
> Bill
>
> On Wed, May 13, 2009 at 9:15 AM, Jakub Bican <jakub.bican at matfyz.cz>
> wrote:
> > Thanks Luis,
> >
> > A) They were random images downloaded from the web ...
> >
> > B) I suppose ITK to throw an exception on a file that it is not able
> > to read and clean-up everything correctly.
> >
> > C) I've been told that reading many zero-sized jpeg files on our linux
> > machine will cause the error ("Error opendir(): Too many open files").
> >
> > I am working on easy-reproducing the problem and gathering some more
> > info. I remember one more bug with jpeg loading which has been fixed
> > (http://public.kitware.com/Bug/view.php?id=5201), but maybe
> > insufficiently ...
> >
> > Regards, Jakub
> >
> >
> > 2009/5/13 Luis Ibanez <luis.ibanez at kitware.com>:
> >> Hi Jakub,
> >>
> >>
> >> A couple of questions:
> >>
> >>
> >> A) The corrupted JPEG files:
> >>     With what software were they generated ?
> >>
> >>
> >> B) Do you expect ITK to read the corrupted files ?
> >>     or to throw exceptions when encountering them ?
> >>
> >> C) Can you share one (or several) of those corrupted
> >>     files so that we can attempt to replicate this
> >>     behavior.
> >>
> >>
> >> One thing that may be happening is that we may be
> >> throwing an exception but not closing the file handles
> >> that have been open so far....
> >>
> >>
> >>
> >>      Thanks
> >>
> >>
> >>              Luis
> >>
> >>
> >> -------------------------------------------------------
> >> On Wed, May 13, 2009 at 2:54 AM, Jakub Bican <jakub.bican at matfyz.cz>
> wrote:
> >>> Hello,
> >>>
> >>> we built an image retrieval system and we encountered a problem. In
> >>> the bunch of files we have to precess is a large number of corrupter
> >>> jpeg files or files with zero length.
> >>>
> >>> We suspect the JPEG image reader class of ITK that it does not close
> >>> file handle if it encounters some problem during file reading, because
> >>> we run out of file handles on certain linux system after some time of
> >>> system our execution.
> >>>
> >>> Do someone have an experience with such behavior?
> >>>
> >>> Thanks, Jakub
> >>> _____________________________________
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> >>
> >>
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> >
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> >
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