<div dir="ltr"><div>Hi,</div><div>The origin, the direction and the spacing define the sampling grid of your images, both in the projection space and in the image space. This is explained <a href="https://itk.org/ITKSoftwareGuide/html/Book1/ITKSoftwareGuide-Book1ch4.html#x45-500004.1">here</a>, e.g., in Fig. 4.<br></div><div>Simon<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Jun 15, 2020 at 3:25 AM 나윤호 <<a href="mailto:yoonho94.na@gmail.com">yoonho94.na@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hi rtk-users.<div><br></div><div>I am curious about origin and spacing.</div><div><br></div><div>I only know that origin is where the pixel starts </div><div><br></div><div>and spacing is the distance between pixel coordinates.</div><div><br></div><div>how do they affect in reconstructing images?</div><div><br></div><div>does the computation begins with where pixel origin is?</div><img alt="" style="display: flex;" src="https://mailtrack.io/trace/mail/41781cf5af613dc5815ad79f88143b1e911be411.png?u=4672561" width="0" height="0"></div>
_______________________________________________<br>
Rtk-users mailing list<br>
<a href="mailto:Rtk-users@public.kitware.com" target="_blank">Rtk-users@public.kitware.com</a><br>
<a href="https://public.kitware.com/mailman/listinfo/rtk-users" rel="noreferrer" target="_blank">https://public.kitware.com/mailman/listinfo/rtk-users</a><br>
</blockquote></div>