Le 04/03/2013 13:23, Dang, Christophe a écrit :
.../...
I personally would try Fourier filtering:
a strong outlier means a steep slope
and therefore correspond to a high frequency.
Thus fft2, set high frequencies to 0
(with possibly a smooth transition),
then inverse fft2 -- ifft2 does not exist, I never used 2-dimension
Fourier transform so I don't know if the inverse is easy to perform...
frequency-wise multiplication of 2 spectra is equivalent to
convoluting both respectives functions (in the direct spaces).
Samuel
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