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Mlapfill.c
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Mlapfill.c
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/* Missing data interpolation in 2-D by Laplacian regularization. */
/*
Copyright (C) 2004 University of Texas at Austin
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <rsf.h>
#include "lapfill.h"
int main(int argc, char* argv[])
{
int n1,n2, n12, n3, i1, i3, niter;
float *map, *msk;
bool *known, grad, verb;
sf_file in, out, mask;
sf_init(argc,argv);
in = sf_input("in");
out = sf_output("out");
if (!sf_histint(in,"n1",&n1)) sf_error("No n1= in input");
if (!sf_histint(in,"n2",&n2)) sf_error("No n2= in input");
n3 = sf_leftsize(in,2);
n12 = n1*n2;
if (!sf_getint("niter",&niter)) niter=200;
/* number of iterations */
if (!sf_getbool("grad",&grad)) grad=false;
/* if y, use gradient instead of laplacian */
if (!sf_getbool("verb",&verb)) verb=false;
/* verbosity flag */
map = sf_floatalloc(n12);
known = sf_boolalloc(n12);
if (NULL != sf_getstring("mask")) {
/* optional mask file with zeroes for missing data locations */
mask = sf_input("mask");
msk = sf_floatalloc(n12);
} else {
mask = NULL;
msk = map;
}
lapfill_init (n1,n2,grad,verb);
for (i3=0; i3 < n3; i3++) {
sf_floatread(map,n12,in);
if (NULL != mask) sf_floatread(msk,n12,mask);
for (i1=0; i1 < n12; i1++) {
known[i1] = (bool) (msk[i1] != 0.);
}
lapfill(niter,map,known);
sf_floatwrite(map,n12,out);
}
exit(0);
}