[Insight-users] Errors with Insight Applications on the Mac

[Luis Ibanez]

Hi Robb,

Thanks for reporting these two failures.

1) The Raw reader problem was identified
    recently. It is due to a broken implementation
    of the fstream.fail() function in the Mac.

    It happens that fail() returns true in the Mac
    when you reach the end of the file.  We fixed
    this in the trunk but visibly not in the 1.2 branch.

    I just cheked in the fix in the 1.2 release branch.

    You may get the modified file through the
    CVS web server:

http://www.itk.org/cgi-bin/cvsweb.cgi/Insight/Code/IO/itkRawImageIO.txx?cvsroot=Insight&only_with_tag=Release-1-2

    Note that the branches are selected at the bottom
    of the page.


2) The second problem, related to the GradientMagnitude
    seems to be new.

    It looks like it is specific to the Mac. Our other
    builds on the release 1.2 are not showing this.

    Is this crashing in the program in Insight/Examples ?
    or in the GUI application in InsightApplications/
    GeodesicActiveContours ?

    Could you please give us more details on this.
    It is possible that the source of the error is a
    badly read image file, or a too small volume. What
    data are you providing to the program.

    This filter requires at least 5 pixels along every
    dimension.


Please let us know,



Thanks



   Luis



-----------------------


Robb Brown wrote:
> 
> I've gotten two errors when running examples from the Insight 
> Applications 1.2.0, using ITK 1.2.0 and VTK 4.2.
> 
> The first is a problem with the raw file reader in the 
> AntiAliasBinaryImageFilterExample program.  Using data generated by the 
> included utility, the program reports:
> 
> itk::ExceptionObject (0x2cd260)
> Location: "Unknown"
> File: /usr/local/include/InsightToolkit/IO/itkRawImageIO.txx
> Line: 190
> Description: itk::ERROR: RawImageIO(0x2c8bf0): Read failed: Wanted 
> 262144 bytes, but read 262144 bytes.
> 
> Note that the expected file size and the read file size ARE the same.
> 
> The second problem involves the Gradient Magnitude filter used in 
> several of the segmentation applications (GeodesicActiveContour is 
> one).  It crashes when run with a bus error.  The crash log reports:
> 
> 
> Date/Time:  2003-03-10 14:30:33 -0700
> OS Version: 10.2.4 (Build 6I32)
> Host:       mrc-brownr.crha-health.ab.ca
> 
> Command:    GeodesicActiveContour
> PID:        1115
> 
> Exception:  EXC_BAD_ACCESS (0x0001)
> Codes:      KERN_PROTECTION_FAILURE (0x0002) at 0x00553ff8
> 
> Thread 0 Crashed:
>  #0   0x00126070 in itk::RecursiveSeparableImageFilter<itk::Image<float, 
> (unsigned)3>, itk::Image<float, (unsigned)3> >::FilterDataArray(double*, 
> double const*, unsigned)
>  #1   0x00108cac in itk::RecursiveSeparableImageFilter<itk::Image<float, 
> (unsigned)3>, itk::Image<float, (unsigned)3> >::GenerateData()
>  #2   0x0001ef18 in itk::ProcessObject::UpdateOutputData(itk::DataObject*)
>  #3   0x0001951c in itk::DataObject::UpdateOutputData()
>  #4   0x0001eb74 in itk::ProcessObject::UpdateOutputData(itk::DataObject*)
>  #5   0x0001951c in itk::DataObject::UpdateOutputData()
>  #6   0x0001909c in itk::DataObject::Update()
>  #7   0x0001e260 in itk::ProcessObject::Update()
>  #8   0x00105db0 in 
> itk::GradientMagnitudeRecursiveGaussianImageFilter<itk::Image<float, 
> (unsigned)3>, itk::Image<float, (unsigned)3> >::GenerateData()
>  #9   0x0001ef18 in itk::ProcessObject::UpdateOutputData(itk::DataObject*)
>  #10  0x0001951c in itk::DataObject::UpdateOutputData()
> 
> etc.
> 
> Are these problems just on the Mac?  Thanks for any help,
> 
> Robb
> 
> _____________________________
> Robb Brown
> Seaman Family MR Center
> Calgary, AB
> 
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