[Insight-users] creating my first finding max value in neighborhood
robert tamburo
robert.tamburo at gmail.com
Tue Mar 1 06:29:48 EST 2011
itk::ConstNeighborhoodIterator<TImage> inputIterator(radius,input);
error C2664:
'itk::ConstNeighborhoodIterator<TImage>::ConstNeighborhoodIterator(const
itk::ConstNeighborhoodIterator<TImage> &)' : cannot convert parameter 1 from
'itk::Size<VDimension>' to 'const itk::ConstNeighborhoodIterator<TImage> &
Look at constructor definition here:
http://www.itk.org/Doxygen/html/classitk_1_1ConstNeighborhoodIterator.html
outputIterator.Set(index->GetMax());
error C2065: 'index' : undeclared identifier
error C2227: left of '->GetMax' must point to class/struct/union/generic
type
Learn about local variables here:
http://en.wikipedia.org/wiki/Local_variable
On Tue, Mar 1, 2011 at 5:12 AM, john smith <mkitkinsightuser at gmail.com>wrote:
> Hello to all,
> I am trying to develop my first filter in itk using visualstudio2010 and
> cmake. This filter devides my input image into neighborhoods of nine pixels
> and finds their maximum value. I have made some changes in my .txx file,
> but I am still having some problems when I build the project and I would
> like some help:
>
>
> #ifndef __itkmax_value_filter_txx
> #define __itkmax_value_filter_txx
>
> #include "max_value_filter.h"
> #include "itkObjectFactory.h"
> #include "itkImageRegionIterator.h"
> #include "itkConstNeighborhoodIterator.h"
>
> namespace itk
> {
>
> template< class TImage>
> void max_value_filter< TImage>
> ::GenerateData()
> {
> typename TImage::ConstPointer input = this->GetInput();
>
> typename TImage::Pointer output = this->GetOutput();
> output->SetRegions(input->GetLargestPossibleRegion());
> output->Allocate();
>
> itk::ImageRegionIterator<TImage> outputIterator(output,
> output->GetLargestPossibleRegion());
>
> TImage::SizeType radius;
> radius[0] = 1;
> radius[1] = 1;
>
> itk::ConstNeighborhoodIterator<TImage> inputIterator(radius,input);
> error C2664:
> 'itk::ConstNeighborhoodIterator<TImage>::ConstNeighborhoodIterator(const
> itk::ConstNeighborhoodIterator<TImage> &)' : cannot convert parameter 1 from
> 'itk::Size<VDimension>' to 'const itk::ConstNeighborhoodIterator<TImage> &
>
>
>
>
> while(!inputIterator.IsAtEnd())
>
> {
>
> for(unsigned int i = 1; i < 9; i++)
> {
> TImage::IndexType index = inputIterator.GetIndex(i);
>
> }
>
> outputIterator.Set(index->GetMax());
> error C2065: 'index' : undeclared identifier
> error C2227: left of '->GetMax' must point to class/struct/union/generic
> type
>
>
> ++inputIterator;
> ++outputIterator;
> }
>
>
> }
>
> }// end namespace
>
>
> #endif
>
> 2011/3/1 Ryan Smith <ryanleesmith at gmail.com>
>
>> Hi John-
>> Did you get this up and running? Myself and others on the list would be
>> interested in the final code you developed. Thanks-
>> -Ryan
>>
>> On Mon, Feb 28, 2011 at 8:05 AM, john smith <mkitkinsightuser at gmail.com>wrote:
>>
>>> I get these failures when I build my project.In the following lines I
>>> write again my code and I highlight all the failures under the line on which
>>> they have occured. Can you explain some of these mistakes as I am still
>>> influenced in C?
>>>
>>>
>>> ---------------------------
>>> max_value_neighborhood.cxx-----------------------------
>>>
>>> --------------------------------------------------------------------------------------------------
>>> #include "itkImage.h"
>>> #include "itkImageFileReader.h"
>>> #include "itkImageFileWriter.h"
>>>
>>> #include "max_value_filter.h"
>>>
>>> int main(int, char*[])
>>> {
>>> // Setup types
>>> typedef itk::Image<unsigned char, 2> ImageType;
>>> typedef itk::max_value_filter<ImageType> FilterType;
>>>
>>> typedef itk::ImageFileReader<ImageType> ReaderType;
>>> ReaderType::Pointer reader = ReaderType::New();
>>> reader->SetFileName("test.png");
>>> reader->Update();
>>>
>>> // Create and the filter
>>> FilterType::Pointer filter = FilterType::New();
>>> see reference to class template instantiation
>>> 'itk::max_value_filter<TImage>' being compiled
>>>
>>> filter->SetInput(reader->GetOutput());
>>> filter->Update();
>>>
>>> typedef itk::ImageFileWriter< ImageType > WriterType;
>>> WriterType::Pointer writer = WriterType::New();
>>> writer->SetFileName("result.png");
>>> writer->SetInput(filter->GetOutput());
>>> writer->Update();
>>>
>>> return EXIT_SUCCESS;
>>> }
>>>
>>>
>>>
>>> ----------------------------
>>> max_value_filter.txx--------------------------------
>>>
>>> -------------------------------------------------------------------------------------
>>> #ifndef __itkmax_value_filter_txx
>>> #define __itkmax_value_filter_txx
>>>
>>> #include "max_value_filter.h"
>>> #include "itkObjectFactory.h"
>>> #include "itkImageRegionIterator.h"
>>> #include "itkConstNeighborhoodIterator.h"
>>>
>>> namespace itk
>>> {
>>>
>>> template< class TImage>
>>> void max_value_filter< TImage>
>>> ::GenerateData()
>>> {
>>> while compiling class template member function 'void
>>> itk::max_value_filter<TImage>::GenerateData(void)'
>>>
>>> typename TImage::ConstPointer input = this->GetInput();
>>>
>>> typename TImage::Pointer output = this->GetOutput();
>>> output->SetRegions(input->GetLargestPossibleRegion());
>>> output->Allocate();
>>>
>>> itk::ImageRegionIterator<TImage> outputIterator(output,
>>> output->GetLargestPossibleRegion());
>>> itk::ImageRegionConstIterator<TImage> inputIterator(input,
>>> input->GetLargestPossibleRegion());
>>>
>>>
>>>
>>>
>>> while(!inputIterator.IsAtEnd())
>>> {
>>>
>>> TImage::IndexType max = inputIterator.GetIndex(0);
>>> 'itk::ImageConstIterator<TImage>::GetIndex' : function does not take 1
>>> arguments
>>>
>>>
>>> for(unsigned int i = 1; i < 9; i++)
>>> {
>>> TImage::IndexType index = inputIterator.GetIndex(i);
>>>
>>>
>>> if (max<index)
>>> error C2676: binary '<' : 'itk::Index<VIndexDimension>' does not define
>>> this operator or a conversion to a type acceptable to the predefined
>>> operator
>>> {
>>> max = inputIterator.GetIndex(i);
>>> error C2660: 'itk::ImageConstIterator<TImage>::GetIndex' : function does
>>> not take 1 arguments
>>> }
>>>
>>>
>>> bool IsInBounds;
>>> inputIterator.GetPixel(i, IsInBounds);
>>> 'GetPixel' : is not a member of 'itk::ImageRegionConstIterator<TImage>'
>>>
>>>
>>> }
>>>
>>> outputIterator.Set(inputIterator.Get(max));
>>> error C2660: 'itk::ImageConstIterator<TImage>::Get' : function does not
>>> take 1 arguments
>>>
>>>
>>> ++inputIterator;
>>> ++outputIterator;
>>> }
>>>
>>>
>>> }
>>>
>>> }// end namespace
>>>
>>>
>>> #endif
>>>
>>>
>>>
>>>
>>>
>>> 2011/2/28 David Doria <daviddoria at gmail.com>
>>>
>>> On Mon, Feb 28, 2011 at 10:22 AM, john smith <mkitkinsightuser at gmail.com
>>>> > wrote:
>>>>
>>>>> Hi to all,
>>>>>
>>>>> I am trying to develop my first filter in itk using visualstudio2010
>>>>> and cmake. This filter devides my input image into neighborhoods of nine
>>>>> pixels and finds their maximum value. Then, this value is transfered to one
>>>>> pixel of my output image. I have written the following code, but I have some
>>>>> failures that I cannot understand. Could someone help me to overide my
>>>>> problems? Furthermore, I would like to know if it is possible to write my
>>>>> own filter only with .cxx and .txt files, like*
>>>>> http://www.itk.org/Wiki/ITK/Examples/Iterators/ConstNeighborhoodIterator
>>>>> *.
>>>>>
>>>>> Thanks
>>>>>
>>>>>
>>>> Can you describe the failures? Are they compiler errors? Crashes?
>>>> Incorrect results?
>>>>
>>>> David
>>>>
>>>>
>>>
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>>
>
> _____________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
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>
> Kitware offers ITK Training Courses, for more information visit:
> http://www.kitware.com/products/protraining.html
>
> Please keep messages on-topic and check the ITK FAQ at:
> http://www.itk.org/Wiki/ITK_FAQ
>
> Follow this link to subscribe/unsubscribe:
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>
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