[Insight-users] Re : Re : problem with discrete gaussian filter
Syrine Sahmim
syrine.sahmim at yahoo.fr
Tue Jul 28 07:36:11 EDT 2009
Thank you so much
________________________________
De : Luis Ibanez <luis.ibanez at kitware.com>
À : Syrine Sahmim <syrine.sahmim at yahoo.fr>
Envoyé le : Mardi, 28 Juillet 2009, 12h08mn 37s
Objet : Re: [Insight-users] Re : problem with discrete gaussian filter
Syrine,
If you Google for "MS-DOS Tutorial" you will find hundreds of hits.
please follow any of those tutorials:
For example:
http://www.tnd.com/camosun/elex130/dostutor1.html
http://terpconnect.umd.edu/~nsw/ench250/dostutor.htm
http://www.computerhope.com/forum/index.php?topic=25982.0
or if you prefer YouTube videos:
http://www.youtube.com/watch?v=e9u6NiBwiPI
you could also do the same from the Visual Studio IDE
http://www.youtube.com/watch?v=DK96tx23YkU
Regards
Luis
--------------------------------------------------------------
On Tue, Jul 28, 2009 at 6:54 AM, Syrine Sahmim <syrine.sahmim at yahoo.fr> wrote:
Hi Luis,
>
>Thank for the replay.
>1. My plateform is windows xp
>2. You have said :"You should familiarize yourself, first, with using a command
>line interface. Then you will be comfortable running the examples." . Can i find a document that explain to me how can i uses a command line interface? Did you mean that is the " debogue comand" in visual c++?
>>3. If i try to use the examples with my own images how can i modify to do it?
>4.>>Once you are familiar with the examples, you can run them as:
>
>
>> executable input1 input2 output
> I don't understand this part please can you explain more to me.
>About the itksoftwareguide i have the 2.4 version and i read most of it but in vain i still find many difficulties in programs.
>>I'm so sorry if i have many questions.thank you really.
>
>BEST REGARDS
>Syrine
>
>
>
>
________________________________
De : Luis Ibanez <luis.ibanez at kitware.com>
>À : Syrine Sahmim <syrine.sahmim at yahoo.fr>
>Cc : insight-users at itk.org
>Envoyé le : Mardi, 28 Juillet 2009, 11h35mn 05s
>Objet : Re: [Insight-users] problem with discrete gaussian filter
>
>
>Hi Syrine,
>
>As described in the ITK Software Guide
>
> http://www.itk.org/ItkSoftwareGuide.pdf
>
>all the examples in the directory:
>
> Insight/Examples
>
>are intended to be run as command line executables.
>
>This means that you must run them from:
>
> A) a GNU/Linux shell (in a terminal) or
> B) a MS-DOS command window on Windows or
> C) a Visual Studio command prompt window
>
>
>What is your platform ?
>(Windows?, Linux?, Mac? other ?).
>
>You should familiarize yourself, first, with using a command
>line interface. Then you will be comfortable running the examples.
>
>
>Once you are familiar with the examples, you can run them as:
>
>
>> executable input1 input2 output
>
>
>for example, the Median filter example in
>
> Insight/Examples/Filtering
>
>will work as:
>
>> MedianImageFilter BrainProtonDensitySlice.png median.png
>
>You will find ALL the images used for the ITK Software Guide,
>in the directory:
>
> Insight/Testing/Data
>
>(including the BrainProtonDensitySlice.png mentioned above).
>
>
>
>---
>
>About your process for reading a DICOM image, the problem
>>
>is that you are using the ImageFileReader, while you should be
>using the ImageSeriesReader.
>
>
>In your current code, you are only reading one slice of the
>DICOM series.
>
>
>Please read the ITK Software Guide
>
> http://www.itk.org/ItkSoftwareGuide.pdf
>
>in particular the chapter "Reading and Writing Images", it has
>detailed explanations on how to read a series of DICOM images
>>
>from a directory.
>
>You will find useful to look at the Example:
>
> Insight/Examples/IO/
> DicomSeriesReadImageWrite2.cxx
>
>
>
>
> Regards,
>
>
> Luis
>
>
>
>>
>----------------------------------------------------------------------------------------------------------------
>
>On Tue, Jul 28, 2009 at 5:26 AM, Syrine Sahmim <syrine.sahmim at yahoo.fr> wrote:
>
>Hello every body,
>>Yesterday i sent an email to the group to know what is the problem with my code and i did not receive answer.
>>I want to understand some things at the begining:
>>1. when i try the examples programs, i must give to the program the images as input. the problem is that i can't do that , i don't know how and where i must gives the input image and the out put one. if someone can explain more this issue to me.
>>>>
>>2. i send again my previous program to try to find errors.
>>I try to apply the discrete gaussian filter on a 3D dicom image. So i
>>tried the code below. there's no errors on building step but the
>>problem is after debugging. i don't have result.so i want to know
>>where's the error or even i must do or add some codes to succeed
>>execution.
>>the code is:
>>#if defined(_MSC_VER)
>>#pragma warning ( disable : 4786 )
>>#endif
>>
>>#ifdef __BORLANDC__
>>#define ITK_LEAN_AND_MEAN
>>#endif
>>
>>#include "itkImage.h"
>>#include "itkImageFileReader.h"
>>>>
>>#include "itkImageFileWriter.h"
>>#include "itkRescaleIntensityImageFilter.h"
>>
>>
>>#include "itkDiscreteGaussianImageFilter.h"
>>
>>int main( int argc, char * argv[] )
>>{argc = 2;
>>>>
>> argv[1] = "003F87DA.png";
>> argv[2] = "DA.png";
>>
>> /*if( argc < 3 )
>> {
>> std::cerr << "Usage: " << std::endl;
>> std::cerr << argv[0] << " inputImageFile outputImageFile variance maxKernelWidth " << std::endl;
>>>>
>> return EXIT_FAILURE;
>> }*/
>>
>>
>> typedef float InputPixelType;
>> typedef float OutputPixelType;
>>
>> typedef itk::Image< InputPixelType, 3 > InputImageType;
>> typedef itk::Image< OutputPixelType, 3 > OutputImageType;
>>>>
>>
>> typedef itk::ImageFileReader< InputImageType > ReaderType;
>>
>>
>>
>> typedef
>> itk::DiscreteGaussianImageFilter<
>> InputImageType, OutputImageType > FilterType;
>>
>> FilterType::Pointer filter = FilterType::New();
>>
>> ReaderType::Pointer reader = ReaderType::New();
>>>>
>> reader->SetFileName( argv[1] );
>>
>> filter->SetInput( reader->GetOutput() );
>>
>> const double gaussianVariance = atof( argv[3] );
>> const unsigned int maxKernelWidth = atoi( argv[4] );
>>
>> filter->SetVariance( gaussianVariance );
>>>>
>> filter->SetMaximumKernelWidth( maxKernelWidth );
>>
>>
>> filter->Update();
>>
>> typedef unsigned char WritePixelType;
>> typedef itk::Image< WritePixelType, 2 > WriteImageType;
>> typedef itk::RescaleIntensityImageFilter<
>>
>> OutputImageType, WriteImageType > RescaleFilterType;
>> RescaleFilterType::Pointer rescaler = RescaleFilterType::New();
>>
>> rescaler->SetOutputMinimum( 0 );
>> rescaler->SetOutputMaximum( 255 );
>>
>> typedef itk::ImageFileWriter< WriteImageType > WriterType;
>> WriterType::Pointer writer = WriterType::New();
>> writer->SetFileName( argv[2] );
>>
>> // Software Guide : BeginCodeSnippet
>> rescaler->SetInput( filter->GetOutput() );
>>>>
>> writer->SetInput( rescaler->GetOutput() );
>> writer->Update();
>>
>> return EXIT_SUCCESS;
>>}
>>
>>BEST REGARDS
>>
>>
>>
>>_____________________________________
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>>
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>>
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>>
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>>
>>
>
>
>_____________________________________
>>Powered by www.kitware.com
>
>>Visit other Kitware open-source projects at
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>
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>
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