[ITK] ITK -- Transform an image with a change of coordinates

[Gaetano Esposito]

Thank you for the pointer. I will update this thread as I go.

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