1 /*
2   Teem: Tools to process and visualize scientific data and images             .
3   Copyright (C) 2012, 2011, 2010, 2009  University of Chicago
4   Copyright (C) 2008, 2007, 2006, 2005  Gordon Kindlmann
5   Copyright (C) 2004, 2003, 2002, 2001, 2000, 1999, 1998  University of Utah
6 
7   This library is free software; you can redistribute it and/or
8   modify it under the terms of the GNU Lesser General Public License
9   (LGPL) as published by the Free Software Foundation; either
10   version 2.1 of the License, or (at your option) any later version.
11   The terms of redistributing and/or modifying this software also
12   include exceptions to the LGPL that facilitate static linking.
13 
14   This library is distributed in the hope that it will be useful,
15   but WITHOUT ANY WARRANTY; without even the implied warranty of
16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17   Lesser General Public License for more details.
18 
19   You should have received a copy of the GNU Lesser General Public License
20   along with this library; if not, write to Free Software Foundation, Inc.,
21   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
22 */
23 
24 #include "ten.h"
25 #include "privateTen.h"
26 
27 #define INFO "Average across tensor volumes"
28 static const char *_tend_avgInfoL =
29   (INFO
30    ".  The output is the same size as the any one of the inputs. "
31    "The individual tensors may be averaged in various ways.");
32 
33 int
tend_avgMain(int argc,const char ** argv,const char * me,hestParm * hparm)34 tend_avgMain(int argc, const char **argv, const char *me,
35              hestParm *hparm) {
36   int pret;
37   hestOpt *hopt = NULL;
38   char *perr, *err;
39   airArray *mop;
40 
41   int ninLen, itype;
42   Nrrd **nin, *nout;
43   char *outS;
44 
45   hestOptAdd(&hopt, "i", "nin1 nin2", airTypeOther, 2, -1, &nin, NULL,
46              "list of input diffusion tensor volumes",
47              &ninLen, NULL, nrrdHestNrrd);
48   hestOptAdd(&hopt, "t", "type", airTypeEnum, 1, 1, &itype, "linear",
49              "averaging method",
50              NULL, tenInterpType);
51   hestOptAdd(&hopt, "o", "nout", airTypeString, 1, 1, &outS, "-",
52              "output image (floating point)");
53 
54   mop = airMopNew();
55   airMopAdd(mop, hopt, (airMopper)hestOptFree, airMopAlways);
56   USAGE(_tend_avgInfoL);
57   JUSTPARSE();
58   airMopAdd(mop, hopt, (airMopper)hestParseFree, airMopAlways);
59 
60   nout = nrrdNew();
61   airMopAdd(mop, nout, (airMopper)nrrdNuke, airMopAlways);
62 
63   if (tenInterpMulti3D(nout, AIR_CAST(const Nrrd*const*, nin), NULL,
64                        ninLen, itype, NULL)) {
65     airMopAdd(mop, err=biffGetDone(TEN), airFree, airMopAlways);
66     fprintf(stderr, "%s: trouble:\n%s\n", me, err);
67     airMopError(mop); return 1;
68   }
69 
70   if (nrrdSave(outS, nout, NULL)) {
71     airMopAdd(mop, err=biffGetDone(NRRD), airFree, airMopAlways);
72     fprintf(stderr, "%s: trouble writing:\n%s\n", me, err);
73     airMopError(mop); return 1;
74   }
75 
76   airMopOkay(mop);
77   return 0;
78 }
79 
80 unrrduCmd tend_avgCmd = { "avg", INFO, tend_avgMain };
81