[Insight-users] Weird behavior fo itk::Image<>::RegionType

[Gabriel Santiago]

Here it is:
*
// STD libraries:
#include <iostream>
#include <string>
// ITK libraries:
#include "itkImage.h"
#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"
#include "itkExtractImageFilter.h"
#include "itkAnalyzeImageIO.h"
#include "itkOrientImageFilter.h"
#include "itkSize.h"

*
*// Type def.
*
*typedef unsigned char InputImage;
typedef unsigned char OutputImage;

// Image def.::
typedef itk::Image<InputAnalyzeImage, 3> Image3D;
typedef itk::Image<OutputJPGImage, 2> Image2D;

typedef itk::ImageFileReader<**Analyze3DImage> Reader3D;
typedef itk::ImageFileWriter<**JPG2DImage> Writer2D;
typedef itk::ExtractImageFilter<**Image3D, Image2D> Filter3D;

Image2D::Pointer extract2DSlice(Image3D::**Pointer buffer, int plane, int
slice)
{
    Filter3D::Pointer filter = Filter3D::New();
    Image3D::RegionType inputRegion = buffer->**GetLargestPossibleRegion();

    Image3D::SizeType size = inputRegion.GetSize();
    size[plane] = 0;
    Image3D::IndexType start = inputRegion.GetIndex();
    const unsigned int sliceNumber = slice;
    start[plane] = sliceNumber;

*
*    // The problem is HERE!
*
*    Image3D::RegionType desiredRegion;
    desiredRegion.SetSize(size);
    desiredRegion.SetIndex(start);

    filter->SetExtractionRegion(**desiredRegion);
    filter->SetInput(buffer);

    Image2D::Pointer img = filter->GetOutput();
    return img;
}*



On 16 August 2013 16:21, Bill Lorensen <bill.lorensen at gmail.com> wrote:

> If you post a small, minimal example that with all includes, perhaps we
> can help.
>
>
>
> On Fri, Aug 16, 2013 at 3:17 PM, Gabriel Santiago <
> santiago.eletrica at gmail.com> wrote:
>
>> Dear all,
>>
>> I am trying to reproduce the example of page 118, of the
>> itkSoftwareGuide, changing
>>
>> *typedef itk::ImageMaskSpatialObject<3> ImageMaskSpatialObject;*
>>
>> to
>>
>> *typedef itk::Image<InputAnalyzeImage, 3> Image3D;*
>>
>> I think it should work, but when I come to the following lines
>>
>> *    Image3D::SizeType size = inputRegion.GetSize();
>>     size[plane] = 0;
>>     Image3D::IndexType start = inputRegion.GetIndex();
>>     const unsigned int sliceNumber = slice;
>>     start[plane] = sliceNumber;
>>
>>     Image3D::RegionType desiredRegion;
>>     desiredRegion.SetSize(size);
>>     desiredRegion.SetIndex(start);*
>>
>> I am getting the following error messages:
>>
>> *Invalid argumentes:
>> *
>> *Candidates are:
>> *
>> *void SetSize(const itk::Size<<unknown>>&)  and
>> void SetSize(unsigned long int, unsigned long int)
>>
>>
>> Invalid argumentes:
>> Candidates are:
>> void SetIndex(const itk::Index<<unknown>>&)  and
>> void SetIndex(unsigned long int, unsigned long int)
>> *
>>
>> Can anyone, please, help me? I am using itk v4.2.
>> What is going on?
>>
>> Thanks in advance,
>>
>> --
>> Gabriel Santiago
>>
>> ~"As long as I live so long do I learn"~
>> Ramakhrishna
>>
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>
>
> --
> Unpaid intern in BillsBasement at noware dot com
>



-- 
Gabriel Santiago
Engenheiro de Computação - Serviço de Informática/ Hospital das Clínicas de
São Paulo
santiago.eletrica at gmail.com
Cel.: +55 11 99801-0881

~"As long as I live so long do I learn"~
Ramakhrishna
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