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fct1d

$ \bigcirc$Name


fct1d Computes the Fast Cosine Transform of a signal




$ \bigcirc$Command Synopsis


fct1d [-i] X Y



-i : Compute the Inverse Transform

X : Input signal

Y : Output signal




$ \bigcirc$Function Summary


void fct1d (X , Y , inverse )

Fsignal X , Y ;

char *inverse ;




$ \bigcirc$Description


This module computes the Cosine Transform of a real signal using the fast algorithm based on the one given in [PFTV88]. It can also compute the Inverse Cosine Transform, by selecting the appropriate switch.




$ \bigcirc$See Also


fft1d.




$ \bigcirc$Version 1.2


Last Modification date : Tue Apr 8 04:40:03 2003


$ \bigcirc$Author


Chiaa Babya, Jacques Froment






next up previous contents index
Next: fft1d Up: Reference Previous: entropy   Contents   Index
mw 2004-05-05