fft/ifft question
- From: "dan.starr@xxxxxxxxx" <dan.starr@xxxxxxxxx>
- Date: 22 Aug 2005 11:15:39 -0700
I'm trying to figure out what a chunk of image processing matlab code
is supposed to accomplish, and I'm stumped:
In the following, x is an 84x89 double (complex) matrix of values.
What would be the purpose of this line:
x = ifft(fft(x),[],2);
It's first taking the FFT along each column of x, and then taking the
inverse fft of the result along the 2nd dimension. What purpose would
this have in the field of image processing?
Thanks.
.
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