GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: src/unrrdu/mlut.c Lines: 20 56 35.7 %
Date: 2017-05-26 Branches: 1 28 3.6 %

Line Branch Exec Source
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/*
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  Teem: Tools to process and visualize scientific data and images             .
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  Copyright (C) 2013, 2012, 2011, 2010, 2009  University of Chicago
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  Copyright (C) 2008, 2007, 2006, 2005  Gordon Kindlmann
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  Copyright (C) 2004, 2003, 2002, 2001, 2000, 1999, 1998  University of Utah
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  This library is free software; you can redistribute it and/or
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  modify it under the terms of the GNU Lesser General Public License
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  (LGPL) as published by the Free Software Foundation; either
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  version 2.1 of the License, or (at your option) any later version.
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  The terms of redistributing and/or modifying this software also
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  include exceptions to the LGPL that facilitate static linking.
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  This library is distributed in the hope that it will be useful,
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  but WITHOUT ANY WARRANTY; without even the implied warranty of
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  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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  Lesser General Public License for more details.
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  You should have received a copy of the GNU Lesser General Public License
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  along with this library; if not, write to Free Software Foundation, Inc.,
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  51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
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*/
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#include "unrrdu.h"
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#include "privateUnrrdu.h"
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#define INFO "Map nrrd through whole nrrd of univariate lookup tables"
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static const char *_unrrdu_mlutInfoL =
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(INFO
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 ", with one lookup table per element of input nrrd.  The multiple "
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 "tables are stored in a nrrd with a dimension which is either 1 or 2 "
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 "more than the dimension of the input nrrd, resulting in an output "
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 "which has either the same or one more dimension than the input, "
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 "resptectively.\n "
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 "* Uses nrrdApplyMulti1DLut");
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int
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unrrdu_mlutMain(int argc, const char **argv, const char *me,
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                hestParm *hparm) {
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  hestOpt *opt = NULL;
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1
  char *out, *err;
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  Nrrd *nin, **_nmlut, *nmlut, *nout;
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  airArray *mop;
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  int typeOut, rescale, pret, blind8BitRange;
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  unsigned int _nmlutLen, mapAxis;
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  double min, max;
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  NrrdRange *range=NULL;
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  hestOptAdd(&opt, "m,map", "mlut", airTypeOther, 1, -1, &_nmlut, NULL,
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             "one nrrd of lookup tables to map input nrrd through, or, "
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             "list of nrrds which contain the individual entries of "
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             "the lookup table at each voxel, which will be joined together.",
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             &_nmlutLen, NULL, nrrdHestNrrd);
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  hestOptAdd(&opt, "r,rescale", NULL, airTypeInt, 0, 0, &rescale, NULL,
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             "rescale the input values from the input range to the "
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             "lut domain.  The lut domain is either explicitly "
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             "defined by the axis min,max along axis 0 or 1, or, it "
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             "is implicitly defined as zero to the length of that axis "
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             "minus one.");
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  hestOptAdd(&opt, "min,minimum", "value", airTypeDouble, 1, 1, &min, "nan",
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             "Low end of input range. Defaults to lowest value "
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             "found in input nrrd.  Explicitly setting this is useful "
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             "only with rescaling (\"-r\")");
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  hestOptAdd(&opt, "max,maximum", "value", airTypeDouble, 1, 1, &max, "nan",
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             "High end of input range. Defaults to highest value "
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             "found in input nrrd.  Explicitly setting this is useful "
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             "only with rescaling (\"-r\")");
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  hestOptAdd(&opt, "blind8", "bool", airTypeBool, 1, 1, &blind8BitRange,
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             nrrdStateBlind8BitRange ? "true" : "false",
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             "Whether to know the range of 8-bit data blindly "
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             "(uchar is always [0,255], signed char is [-128,127]). "
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             "Explicitly setting this is useful only with rescaling (\"-r\")");
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  hestOptAdd(&opt, "t,type", "type", airTypeOther, 1, 1, &typeOut, "default",
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             "specify the type (\"int\", \"float\", etc.) of the "
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             "output nrrd. "
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             "By default (not using this option), the output type "
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             "is the lut's type.",
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             NULL, NULL, &unrrduHestMaybeTypeCB);
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  OPT_ADD_NIN(nin, "input nrrd");
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  OPT_ADD_NOUT(out, "output nrrd");
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  mop = airMopNew();
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  airMopAdd(mop, opt, (airMopper)hestOptFree, airMopAlways);
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  USAGE(_unrrdu_mlutInfoL);
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  PARSE();
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  airMopAdd(mop, opt, (airMopper)hestParseFree, airMopAlways);
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  nout = nrrdNew();
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  airMopAdd(mop, nout, (airMopper)nrrdNuke, airMopAlways);
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  /* by the end of this block we need to have nmlut and mapAxis */
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  if (1 == _nmlutLen) {
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    /* we got the mlut as a single nrrd */
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    nmlut = _nmlut[0];
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    mapAxis = nmlut->dim - nin->dim - 1;
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    /* its not our job to do real error checking ... */
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    mapAxis = AIR_MIN(mapAxis, nmlut->dim - 1);
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  } else {
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    /* we have to join together multiple nrrds to get the mlut */
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    nmlut = nrrdNew();
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    airMopAdd(mop, nmlut, (airMopper)nrrdNuke, airMopAlways);
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    /* assume that mlut component nrrds are all compatible sizes,
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       nrrdJoin will fail if they aren't */
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    mapAxis = _nmlut[0]->dim - nin->dim;
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    if (nrrdJoin(nmlut, (const Nrrd*const*)_nmlut, _nmlutLen,
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                 mapAxis, AIR_TRUE)) {
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      airMopAdd(mop, err = biffGetDone(NRRD), airFree, airMopAlways);
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      fprintf(stderr, "%s: trouble joining mlut:\n%s", me, err);
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      airMopError(mop);
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      return 1;
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    }
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    /* set these if they were given, they'll be NaN otherwise */
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    nmlut->axis[mapAxis].min = min;
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    nmlut->axis[mapAxis].max = max;
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  }
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  if (!( AIR_EXISTS(nmlut->axis[mapAxis].min) &&
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         AIR_EXISTS(nmlut->axis[mapAxis].max) )) {
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    rescale = AIR_TRUE;
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  }
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  if (rescale) {
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    range = nrrdRangeNew(min, max);
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    airMopAdd(mop, range, (airMopper)nrrdRangeNix, airMopAlways);
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    nrrdRangeSafeSet(range, nin, blind8BitRange);
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  }
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  if (nrrdTypeDefault == typeOut) {
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    typeOut = nmlut->type;
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  }
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  if (nrrdApplyMulti1DLut(nout, nin, range, nmlut, typeOut, rescale)) {
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    airMopAdd(mop, err = biffGetDone(NRRD), airFree, airMopAlways);
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    fprintf(stderr, "%s: trouble applying multi-LUT:\n%s", me, err);
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    airMopError(mop);
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    return 1;
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  }
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  SAVE(out, nout, NULL);
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  airMopOkay(mop);
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  return 0;
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1
}
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UNRRDU_CMD(mlut, INFO);