gradInv
[ XITE Reference Manual | XITE home ]
Name
gradInv - gradient invers noise reduction
Syntax
#include <xite/gradInv.h>
int gradInv( IBAND input, IBAND output, int dx,
int dy );
Description
gradInv performs noise reduction by gradient
invers smoothing.
dx is the horizontal window size.
dy is the vertical window size.
The border is filtered as good as possible.
Return value
0 => ok
1 => bad pixel type input
2 => bad pixel type output
3 => bad dx value (less than 2)
4 => bad dy value (less than 2)
See also
gradInv(1)
References
-
Wang, Vagnucci and Li,
- "Gradient Inverse Weighted Smoothing Scheme and the Evaluation
of Its Performance",
Comp. Graph. and Im. Proc. 15, 167-181 (1981).
Author
Tor Lønnestad, BLAB, Ifi, UiO.
Id
$Id: gradInv.c,v 1.22 1997/01/16 16:04:36 svein Exp $