<div dir="ltr"><font face="verdana, sans-serif">I'm still not sure how to handle vector images. </font><span style="font-family:verdana,sans-serif">Dženan gave an example of an RGB image. That would be a 3-vector unsigned char pixeltype.</span><div><span style="font-family:verdana,sans-serif">Would I have to write out in those <i>'if </i></span><span style="font-family:verdana,sans-serif"><i>(</i></span><span style="font-family:verdana,sans-serif"><i>typeid(ValueType) == ???)'</i> statements all permutations of the number of vectors and the type? Or is there a way to separate the number of vectors and the pixeltype?</span></div><div><span style="font-family:verdana,sans-serif">How are vector images stored in memory in ITK. In an RGB image for example, are the pixels consecutive triplets, or is the image stored as three consecutive color planes?</span></div><div><span style="font-family:verdana,sans-serif">I'm particular interested in 3D displacement vector fields, that are the result of deformable registration.</span></div><div><span style="font-family:verdana,sans-serif"><br></span></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Mar 15, 2016 at 5:22 PM, Bill Lorensen <span dir="ltr"><<a href="mailto:bill.lorensen@gmail.com" target="_blank">bill.lorensen@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><p dir="ltr">This example may help<br>
<a href="http://www.vtk.org/Wiki/ITK/Examples/IO/ReadUnknownImageType" target="_blank">http://www.vtk.org/Wiki/ITK/Examples/IO/ReadUnknownImageType</a><br>
</p><div class="HOEnZb"><div class="h5">
<div class="gmail_quote">On Mar 15, 2016 8:44 AM, "Dženan Zukić" <<a href="mailto:dzenanz@gmail.com" target="_blank">dzenanz@gmail.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">Of course it complained, switch statement is for integral types (if I remember correctly).</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">Regards</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Mar 15, 2016 at 11:39 AM, Lambert Zijp <span dir="ltr"><<a href="mailto:ljzijp@gmail.com" target="_blank">ljzijp@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">Hi <span style="font-family:verdana,sans-serif">Dženan,</span><div><span style="font-family:verdana,sans-serif"><br></span></div><div><span style="font-family:verdana,sans-serif">Thank you very much!</span></div><div><span style="font-family:verdana,sans-serif">Visual Studio 9 does not recognize </span><span style="font-size:12.8px">decltype(), but </span><span style="font-family:verdana,sans-serif">typeid() worked fine. At least, when you make separate if statements, like you did in your example. When tried to use it in a switch statement, the compiler complained.</span></div><div><span style="font-family:verdana,sans-serif"><br></span></div><div><span style="font-family:verdana,sans-serif">Greetings,</span></div><div><span style="font-family:verdana,sans-serif">Lambert</span></div><div><span style="font-family:verdana,sans-serif"><br></span></div></div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Mar 15, 2016 at 2:47 PM, Dženan Zukić <span dir="ltr"><<a href="mailto:dzenanz@gmail.com" target="_blank">dzenanz@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"><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">Hi Lambert,</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">the classic way is using a bunch of if-else's.</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small"><br></div>if (decltype(ValueType)==decltype(int))<br>{<br>//int specific processing<br>}<br>else if (decltype(ValueType)==decltype(itk::RGB<char>))<br>{<br>//RGB<char> specific processing<br>}<div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">else if ...</div><div><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">If you can't use C++11's decltype then use typeid from <typeinfo> header.</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">Regards,</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">Dženan</div></div></div><div class="gmail_extra"><br><div class="gmail_quote"><div><div>On Tue, Mar 15, 2016 at 5:48 AM, Lambert Zijp <span dir="ltr"><<a href="mailto:ljzijp@gmail.com" target="_blank">ljzijp@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><div dir="ltr">I want to write a function that converts an arbitrary ITK image to another format (AVS in my case).<div>It has been suggested that following functionprototype could de the job:</div><div><div>template<typename ValueType,unsigned int Dimension></div><div>int ItkToAvs(AVSfield** ppAvs, typename itk::Image<ValueType,Dimension>::Pointer pItkImage);</div></div><div><br></div><div>Now I want to know whether ValueType equals unsigned char or short or int etc. Also whether the pixels are single numbers or vectors. How does one do that?</div><div><br></div><div>Greetings,</div><div>Lambert</div><div><br></div><div><br></div></div>
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