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fdirspline

$ \bigcirc$Name


fdirspline 2D direct B-spline transform




$ \bigcirc$Command Synopsis


fdirspline in n out



in : input (Fimage)

n : spline order

out : output (Fimage of coefficients)




$ \bigcirc$Function Summary


Fimage fdirspline (in , n , out )

Fimage in , out ;

int n ;




$ \bigcirc$Description


This modules computes the direct B-spline transform of a two-dimensionnal array of numbers (Fimage). A mirror extension is used at the boundaries of the array. The result image is

out(x, y) = $\displaystyle \sum_{{k,l}}^{}$in(k, l )  $\displaystyle \beta^{n}_{}$(x - k$\displaystyle \beta^{n}_{}$(y - l ),

where the spline $ \beta^{n}_{}$ is defined in the documentation of the fcrop module. The order of the spline n (order) must be between 2 and 11.




$ \bigcirc$See Also


funzoom.


$ \bigcirc$Version 1.0


Last Modification date : Thu Nov 29 20:23:56 2001


$ \bigcirc$Author


Lionel Moisan






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