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<body class='hmmessage'><div dir='ltr'>Hello,<div><br></div><div>I apologize in advance for using a vague language, but I just started to play with image processing and segmentation.</div><div><br></div><div>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.</div><div><br></div><div>I am a little confused about how I would achieve this in ITK. </div><div>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. </div><div><br></div><div>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?</div><div><br></div><div>Thanks for your feedback,</div><div><br></div><div>Gaetano</div> </div></body>
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