<div dir="ltr"><span style="font-family:arial,sans-serif;font-size:13px">Fabian,</span><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">You can use itk::ImageIOFactory::CreateImageIO to create an IO object that will read metadata about your image, for example it will have a GetNumberOfDimensions method.</div>
<div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">You'll have to specialize your template instantiations on the dimensions you need then.</div>
<div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">e.g., something like:</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">
auto imageIO = itk::ImageIOFactory::CreateImageIO(filename,itk::ImageIOFactory::ReadMode);<br></div><div style="font-family:arial,sans-serif;font-size:13px"><div>imageIO->SetFileName(filename);</div><div>imageIO->ReadImageInformation();</div>
</div><div style="font-family:arial,sans-serif;font-size:13px">auto dimensions = imageIO->GetNumberOfDimensions();</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">
<div>switch (dimensions)</div><div>{</div><div> case 2:</div><div><span style="white-space:pre-wrap"> SwitchOnDimension</span><2U>(any args you need);</div><div><span style="white-space:pre-wrap"> </span>break;</div>
<div> case 3:</div><div> SwitchOnDimension<3U>(any args you need);</div><div><span style="white-space:pre-wrap"> </span>break;</div><div><br></div><div> ...</div><div>}</div><div><br></div><div><br></div><div>
and somewhere you have</div><div><br></div><div>template <unsigned int Dimension></div><div>void SwitchOnDimension(any args you need)</div><div>{</div><div> //something like this</div><div> #typedef itk::Image<double, Dimension> ImageType</div>
<div><br></div><div> ... etc.</div><div>}</div><div><br></div><div>Above isn't tested but you get the rough idea. </div><div><br></div></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Mar 3, 2014 at 1:46 PM, Simon Alexander <span dir="ltr"><<a href="mailto:skalexander@gmail.com" target="_blank">skalexander@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Fabian,<div><br></div><div>You can use itk::ImageIOFactory::CreateImageIO to create an IO object that will read metadata about your image, for example it will have a GetNumberOfDimensions method.</div>
<div>
<br></div><div>You'll have to specialize your template instantiations on the dimensions you need then.</div><div><br></div><div>e.g., something like:</div><div><br></div><div>auto imageIO = itk::ImageIOFactory::CreateImageIO(filename,itk::ImageIOFactory::ReadMode);<br>
</div><div><div>imageIO->SetFileName(filename);</div><div>imageIO->ReadImageInformation();</div></div><div>auto dimensions = imageIO->GetNumberOfDimensions();</div><div><br></div><div><div>switch (dimensions)</div>
<div>{</div><div> case 2:</div><div><span style="white-space:pre-wrap"> </span>SwitchOnComponent<2U>(config, identity, info);</div><div><span style="white-space:pre-wrap"> </span>break;</div><div> case 3:</div>
<div>
SwitchOnComponent<3U>(config, identity, info);</div><div><span style="white-space:pre-wrap"> </span>break;</div></div><div><br></div><div><br></div><div><br></div><div><br></div></div><div class="gmail_extra">
<br><br><div class="gmail_quote"><div><div class="h5">On Mon, Mar 3, 2014 at 1:32 PM, Fabian Torres <span dir="ltr"><<a href="mailto:fabian.trobles@gmail.com" target="_blank">fabian.trobles@gmail.com</a>></span> wrote:<br>
</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5">
<div dir="ltr"><div>Hi all.</div><div><br></div><div>I´m making a filter in ITK for surface enhancement. This filter is an itkImageToImageFilter.</div><div><br></div><div>Sometimes I will use this filter with 2D images an sometimes with 3D images. The thing is that inside this filter I have to use some other itk components and I need to specify the number of dimensions I´m using. So this is a problem since itk does not let me use variables to specify this.</div>
<div><br></div><div>I´m using the next for 3D:</div><div><br></div><div>typedef itk::Vector< PixelType, 3 > VectorPixelType;</div><div>typedef itk::Vector< VectorPixelType, 3 > MatrixPixelType;</div><div>typedef itk::SymmetricSecondRankTensor< PixelType, 3 > TensorPixelType; </div>
<div><br></div><div>typedef itk::Image< TensorPixelType, 3 > TensorImageType;<br></div><div><br></div><div>but I also need to work with 2D and use the same filter.</div><div><br></div><div>Is there a way to know the number of dimensions of the filter input image, and declare the typedefs using this value? </div>
<span><font color="#888888">
<div><br></div><br clear="all"><div><br></div>-- <br>Fabián Torres Robles<br>Maestria en Ciencias en Ingeniería Electrónica<br>Ingeniería en Sistemas Electrónicos<br>tel. 58081280, 0445534661338<br>e-mail <a href="mailto:fabian.trobles@gmail.com" target="_blank">fabian.trobles@gmail.com</a>, <a href="mailto:dae.wong@gmail.com" target="_blank">dae.wong@gmail.com</a> <div style="line-height:130%;text-align:left;font-size:10px;overflow:hidden;margin-left:0px;word-wrap:break-word;margin-top:0px;padding:0px">
</div><div style="line-height:130%;text-align:left;font-size:10px;overflow:hidden;margin-left:0px;word-wrap:break-word;margin-top:0px;padding:0px"></div>
</font></span></div>
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