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fencode

$ \bigcirc$Name


fencode Encode a fimage : return bit rate for lossless compression




$ \bigcirc$Command Synopsis


fencode U .



U : input fimage

. (screen output) : best rate (bit per pixel)




$ \bigcirc$Function Summary


double fencode (U )

Fimage U ;




$ \bigcirc$Description


This module computes the bit rate (bit per pixel) needed to encode the input fimage that is, to perform lossless compression on it.

Several algorithms are considered, and the bit rate returned by the function is the best bit rate over all the following algorithms : entropy coding, arithmetic coding, predictive arithmetic coding.

See the module arencode2 for more information on the arithmetic coding algorithms.




$ \bigcirc$See Also


arencode2, fentropy.




$ \bigcirc$Version 0.0


Last Modification date : Thu Nov 29 20:23:57 2001


$ \bigcirc$Author


Jacques Froment






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