## ifrdescp.m ( File view )

• By yueqiaohuayuan 2014-11-17
• View(s)：3508
• Point(s)： 3
```			function s = ifrdescp(z, nd)
%IFRDESCP Computes inverse Fourier descriptors.
%   S = IFRDESCP(Z, ND) computes the inverse Fourier descriptors of
%   of Z, which is a sequence of Fourier descriptor obtained, for
%   example, by using function FRDESCP.  ND is the number of
%   descriptors used to computing the inverse; ND must be an even
%   integer no greater than length(Z).  If ND is omitted, it defaults
%   to length(Z).  The output, S, is a length(Z)-by-2 matrix containing
%   the coordinates of a closed boundary.

%   Copyright 2002-2004 R. C. Gonzalez, R. E. Woods, & S. L. Eddins
%   Digital Image Processing Using MATLAB, Prentice-Hall, 2004
%   \$Revision: 1.6 \$  \$Date: 2004/11/04 22:32:04 \$

% Preliminaries.
np = length(z);
% Check inputs.
if nargin == 1 | nd > np
nd = np;
end

% Create an alternating sequence of 1s and -1s for use in centering
% the transform.
x = 0:(np - 1);
m = ((-1) .^ x)';

...
...
```
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01.97 kB
Contents.m5.98 kB2012-02-29|09:51
average.m651.00 B2012-02-29|09:51
bayesgauss.m2.96 kB2012-02-29|09:51
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ice.m26.30 kB2012-02-29|09:51
ice_stand_alone.m46.55 kB2012-02-29|09:51
ifrdescp.m1.38 kB2012-02-29|09:51
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subim.m713.00 B2012-02-29|09:51
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unravel.m967.00 B2012-02-29|09:51
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unravel.mexsol8.54 kB2012-02-29|09:51
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waveback.m4.52 kB2012-02-29|09:51
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wavefast.m4.14 kB2012-02-29|09:51
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wavework.m3.45 kB2012-02-29|09:51
wavezero.m696.00 B2012-02-29|09:51
x2majoraxis.m3.59 kB2012-02-29|09:51
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### ifrdescp.m (160.12 kB)

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