[Insight-users] Working with RescaleIntensityImageFilter in XCode

[Matt McCormick]

Hi Rupinder,

Other people have reported issues with LLVM 3.0.  Sometimes the
binaries it generates are not valid.  LLVM is progressing quickly, but
there are still a few bugs.

Matt

On Tue, Nov 1, 2011 at 12:34 PM, Rupinder Singh
<rupinder.singh123 at yahoo.com> wrote:
> Hello,
> Thank you for your assistance. Sorry for failing to mention the error in the
> previous post. I'm getting "Thread 1: Program received signal:
> "EXC_BAD_ACCESS" ." I was using Xcode 4.2, compiling on a 64 bit intel
> architecture, and using Apple LLVM compiler 3.0.
> After changing my compiler to LLVM GCC 4.2, everything worked perfectly.
> Does anyone know why that would be?
> Thanks again for everyones help.
> Sincerely,
> Rupinder
> On Nov 1, 2011, at 11:15 AM, Bill Lorensen wrote:
>
> This should give you more info:
>
>   try
>     {
>     writer->Update();
>     }
>   catch( itk::ExceptionObject & exc )
>     {
>     std::cout << "Caught unexpected exception: "
>               << exc;
>     return EXIT_FAILURE;
>     }
>
>
> On Tue, Nov 1, 2011 at 1:53 AM, cagatay bilgin <bilgincc at gmail.com> wrote:
>>
>> Hello Rupinder,
>>
>> Could it be that your CastFilter's output is of OutputImageType
>> and your Writer's input is of InputImageType and you connect
>> the cast filter's output to the writer filter ? Templating the
>> ImageFileWriter
>> over the OutputImageType might solve your problem. That is instead of
>> typedef  itk::ImageFileWriter< InputImageType >  WriterType;
>> try
>> typedef  itk::ImageFileWriter< OutputImageType >  WriterType;
>>
>> PS. You can attach the error to the email for a better diagnosis.
>>
>> Regards,
>> Cagatay
>>
>> On Mon, Oct 31, 2011 at 10:03 PM, Rupinder Singh
>> <rupinder.singh123 at yahoo.com> wrote:
>>>
>>> I'm having difficulty understanding why the following function throws an
>>> exception at 'writer->Update()' whenever it's called.
>>>
>>> const     unsigned int    Dimension = 2;
>>> typedef   unsigned char   InputPixelType;
>>> typedef   unsigned char   OutputPixelType;
>>>
>>> typedef itk::Image< InputPixelType,    Dimension >   InputImageType;
>>> typedef itk::Image< OutputPixelType,   Dimension >   OutputImageType;
>>>
>>> void saveITKImage(InputImageType *image)
>>> {
>>>    typedef  itk::RescaleIntensityImageFilter< InputImageType,
>>> OutputImageType > CastFilterType;
>>>    typedef  itk::ImageFileWriter< InputImageType >
>>>
>>> WriterType;
>>>
>>>    WriterType::Pointer      writer = WriterType::New();
>>>    CastFilterType::Pointer  caster = CastFilterType::New();
>>>
>>>    writer->SetFileName("/Users/usr/Desktop/test.jpg");
>>>    caster->SetOutputMinimum(   0 );
>>>    caster->SetOutputMaximum( 255 );
>>>
>>>    // Define Pipeline
>>>    caster->SetInput( image );
>>>    writer->SetInput( caster->GetOutput() );
>>>    writer->Update();
>>>
>>>    return;
>>> }
>>>
>>> I know I'm doing something right because the following bit of code works
>>> perfectly when called.
>>>
>>> void saveITKImage(InputImageType *image)
>>> {
>>>    typedef  itk::ImageFileWriter< InputImageType > WriterType;
>>>
>>>    WriterType::Pointer  writer = WriterType::New();
>>>
>>>    writer->SetFileName("/Users/usr/Desktop/test.jpg");
>>>
>>>    // Define Pipeline
>>>    writer->SetInput( image);
>>>    writer->Update();
>>>
>>>    return;
>>> }
>>>
>>> Does anyone know what I'm doing wrong?
>>> Thank you in advance for your help!
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>>
>>
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>
>
>
> --
> Unpaid intern in BillsBasement at noware dot com
>
>
>
> _____________________________________
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>
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> http://www.kitware.com/products/protraining.html
>
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>