<html>
<head>
<style><!--
.hmmessage P
{
margin:0px;
padding:0px
}
body.hmmessage
{
font-size: 12pt;
font-family:Calibri
}
--></style></head>
<body class='hmmessage'><div dir='ltr'>Thank you for the pointer. I will update this thread as I go.<br><br><div>> Date: Thu, 16 Oct 2014 00:14:17 -0400<br>> Subject: Re: [ITK] ITK -- Transform an image with a change of coordinates<br>> From: matt.mccormick@kitware.com<br>> To: gaetano.esposito@outlook.com<br>> CC: community@itk.org<br>> <br>> Hi Gaetano,<br>> <br>> Yes, using a Transform is one way to go. See this Insight Journal<br>> article [1] and this class [2].<br>> <br>> Hope this helps,<br>> Matt<br>> <br>> [1] http://insight-journal.org/browse/publication/722<br>> <br>> [2] http://www.itk.org/Doxygen/html/classitk_1_1AzimuthElevationToCartesianTransform.html<br>> <br>> On Tue, Oct 14, 2014 at 6:23 PM, Gaetano Esposito<br>> <gaetano.esposito@outlook.com> wrote:<br>> > Hello,<br>> ><br>> > I apologize in advance for using a vague language, but I just started to<br>> > play with image processing and segmentation.<br>> ><br>> > Given an image, I would like to define an arbitrary origin, get the<br>> > coordinates of every pixel from Cartesian (x,y) to polar(rho, theta), and<br>> > then create a new image whose x axis is "rho" and whose y axis is "theta".<br>> > In other words, I would like to map a circular image in Cartesian<br>> > Coordinates to a periodic line in polar coordinates.<br>> ><br>> > I am a little confused about how I would achieve this in ITK.<br>> > I believe that I can take advantage of a couple of Transform based<br>> > Polar-Cartesian algorithms out there, some of them published on the Insight<br>> > Journal. The transform typically seems to act on a single point.<br>> ><br>> > Is using a transform the right approach? If yes, once I have the correct<br>> > transform from Cartesian to Polar, how do I create the "polar" image that I<br>> > am seeking?<br>> ><br>> > Thanks for your feedback,<br>> ><br>> > Gaetano<br>> ><br>> > _______________________________________________<br>> > Community mailing list<br>> > Community@itk.org<br>> > http://public.kitware.com/mailman/listinfo/community<br>> ><br></div> </div></body>
</html>