http://www.mathworks.com/matlabcentral/newsreader/view_thread/265316 MATLAB Central Newsreader - location of image coefficients after wavelet decomposition usinf wavedec2 Feed for thread: location of image coefficients after wavelet decomposition usinf wavedec2 en-us &copy;1994-2012 by MathWorks, Inc. webmaster@mathworks.com MATLAB Central Newsreader http://blogs.law.harvard.edu/tech/rss 60 MathWorks http://www.mathworks.com/images/membrane_icon.gif Mon, 09 Nov 2009 00:43:01 -0500 location of image coefficients after wavelet decomposition usinf wavedec2 http://www.mathworks.com/matlabcentral/newsreader/view_thread/265316#693111 Betelhem Hello,<br> <br> I trying to do an image processing on a 256x256 image of a person. I want to find the location of the image coefficients corresponding to the face part of the original image after wavelet decomposition.<br> The command that I am using for the wavelet decomposition is:<br> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Wc, Wl] = wavedec2(I, 4, 'db8');<br> Could someone please tell me how the wavelet coefficients are exactly arranged?<br> <br> I would really appreciate your help.<br> <br> Thank you in advance.