http://www.programmersheaven.com/ Contains the latest posts from the thread 'Fourier descriptor' posted on the 'Matlab' forum at Programmer's Heaven. en Copyright 2012 Programmers Heaven Wed, 23 May 2012 14:12:49 -0700 Wed, 23 May 2012 14:12:49 -0700 Argotic Syndication Framework 2007.3.0.1, http://www.codeplex.com/Argotic http://www.rssboard.org/rss-specification 360 http://www.programmersheaven.com/images/ph.gif http://www.programmersheaven.com/ 88 31 http://www.programmersheaven.com/mb/ctocplusplustomatlab/410458/410458/fourier-descriptor/ Hello,<br /> <br /> i'm writting a program which detects the contors of the shape in the image, takes N poins from it by sertain lenght and does the fourier transformation, so that the shape becomes more rounded, as seen in the image bellow(red). <img src="http://www.tsi.enst.fr/tsi/enseignement/ressources/mti/descript_fourier/Z6.gif" /><br /> this is the formula i should use. Z(i) should be vectors, complex numbers of the pixel cordinates x+iy, i use complex(x,y). How should i use the fft command build in matlab to get the results as seen in the picture above?<br /> <img src="http://www.tsi.enst.fr/tsi/enseignement/ressources/mti/descript_fourier/form3.gif" /><br /> from this site: <a href="http://www.tsi.enst.fr/tsi/enseignement/ressources/mti/descript_fourier/Part1.html">http://www.tsi.enst.fr/tsi/enseignement/ressources/mti/descript_fourier/Part1.html</a><br /> Thank you for any help,<br /> <br /> <br /> <br /> <br /> <br /> http://www.programmersheaven.com/mb/ctocplusplustomatlab/410458/410458/fourier-descriptor/ Mon, 07 Dec 2009 08:21:16 -0700 Matlab http://www.programmersheaven.com/mb/ctocplusplustomatlab/410458/425923/re-fourier-descriptor/#425923 sir please send me the code of fourier descriptor <br /> http://www.programmersheaven.com/mb/ctocplusplustomatlab/410458/425923/re-fourier-descriptor/#425923 Wed, 23 Nov 2011 01:38:22 -0700 Matlab http://www.programmersheaven.com/mb/ctocplusplustomatlab/410458/425924/re-fourier-descriptor/#425924 sir please send me the matlab code of fourier descriptor <br /> http://www.programmersheaven.com/mb/ctocplusplustomatlab/410458/425924/re-fourier-descriptor/#425924 Wed, 23 Nov 2011 01:40:12 -0700 Matlab http://www.programmersheaven.com/mb/ctocplusplustomatlab/410458/425925/re-fourier-descriptor/#425925 sir please send me the code of fourier descriptor <br /> http://www.programmersheaven.com/mb/ctocplusplustomatlab/410458/425925/re-fourier-descriptor/#425925 Wed, 23 Nov 2011 01:42:04 -0700 Matlab