[ITK] [ITK-users] Floating point exception (core dumped) ConnectedComponentFilter

[Matt McCormick]

Hi,

ITK has support that helps debugging floating point exceptions.  Call
the static method itk::FloatingPointExceptions::Enable():

  http://www.itk.org/Doxygen/html/classitk_1_1FloatingPointExceptions.html#a404951e9dbb64d0a69a7eb1f63d8f1c1

If the floating point exception action is ABORT, a backtrace can be
obtained when running in a debugger like gdb.

HTH,
Matt

On Tue, Jan 5, 2016 at 2:09 PM, Bradly Lowekamp <blowekamp at mail.nih.gov> wrote:
> Hello,
>
> Certainly more information about the nature of the exception would be good.
>
> If this is indeed an C++  exception either std::exception of itk::ExceptionObject based, the try catch block will work.
>
> However floating point exceptions are usually a difference beast from C++ exception objects. Floating point exception occur during floating point computation in the FPU [1]. Generally the FPU can be configure to silently assign a predefined floating point value such as “nan”, or a signal can be generating terminating the program like in your case. The option can usually be configured with compilation flags, the run-time environment or the program itself.
>
> HTH,
> Brad
>
>
> [1] https://en.wikipedia.org/wiki/IEEE_floating_point#Exception_handling
>
>> On Jan 5, 2016, at 1:47 PM, Matt McCormick <matt.mccormick at kitware.com> wrote:
>>
>> Hi,
>>
>> Catching and print the exception can provide more information. See:
>>
>>  http://itk.org/ITKExamples/src/Core/Common/TryCatchException/Documentation.html
>>
>> for an example.
>>
>> HTH,
>> Matt
>>
>> On Tue, Jan 5, 2016 at 8:51 AM, Bradley Lowekamp <blowekamp at mail.nih.gov> wrote:
>>> Hello,
>>>
>>> How big is your big image?
>>>
>>> About how many connected components do you have?
>>>
>>> Brad
>>>
>>>> On Jan 5, 2016, at 5:33 AM, jud <digajjj62 at gmail.com> wrote:
>>>>
>>>> Hi,
>>>>
>>>> I have a problem when I use big images to find the connected componnents.
>>>> When I execute the ConnectedComponentImageFilter the following appears:
>>>> Floating point exception (core dumped)
>>>>
>>>> typedef itk::Image <unsigned long, 3> ImageType;
>>>> typedef itk::Image <unsigned long, 2> ImageType2;
>>>>
>>>> typedef itk::ConnectedComponentImageFilter <ImageType2, ImageType2 >
>>>> ConnectedComponentImageFilterType;
>>>> ConnectedComponentImageFilterType::Pointer connected =
>>>> ConnectedComponentImageFilterType::New ();
>>>> connected->SetInput(image);
>>>> connected->Update();
>>>>
>>>> With small images this error doesn't happen.
>>>>
>>>> Anyone have any idea?
>>>>
>>>> Thanks!
>>>>
>>>>
>>>>
>>>> --
>>>> View this message in context: http://itk-users.7.n7.nabble.com/Floating-point-exception-core-dumped-ConnectedComponentFilter-tp36607.html
>>>> Sent from the ITK - Users mailing list archive at Nabble.com.
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