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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 one univariate lookup table" |
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static const char *_unrrdu_lutInfoL = |
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(INFO |
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" (itself represented as a nrrd). The lookup table " |
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"can be 1D, in which case the output " |
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"has the same dimension as the input, or 2D, in which case " |
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"the output has one more dimension than the input, and each " |
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"value is mapped to a scanline (along axis 0) from the " |
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"lookup table.\n " |
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"* Uses nrrdApply1DLut"); |
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int |
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unrrdu_lutMain(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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char *out, *err; |
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Nrrd *nin, *nlut, *nout; |
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airArray *mop; |
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int typeOut, rescale, pret, blind8BitRange; |
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double min, max; |
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NrrdRange *range=NULL; |
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hestOptAdd(&opt, "m,map", "lut", airTypeOther, 1, 1, &nlut, NULL, |
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"lookup table to map input nrrd through", |
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NULL, 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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✓✗ |
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USAGE(_unrrdu_lutInfoL); |
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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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/* see comment rmap.c */ |
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if (!( AIR_EXISTS(nlut->axis[nlut->dim - 1].min) && |
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AIR_EXISTS(nlut->axis[nlut->dim - 1].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 = nlut->type; |
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} |
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if (nrrdApply1DLut(nout, nin, range, nlut, typeOut, rescale)) { |
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airMopAdd(mop, err = biffGetDone(NRRD), airFree, airMopAlways); |
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fprintf(stderr, "%s: trouble applying 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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} |
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UNRRDU_CMD(lut, INFO); |