diff options
author | Jörg Frings-Fürst <debian@jff-webhosting.net> | 2014-09-01 13:56:46 +0200 |
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committer | Jörg Frings-Fürst <debian@jff-webhosting.net> | 2014-09-01 13:56:46 +0200 |
commit | 22f703cab05b7cd368f4de9e03991b7664dc5022 (patch) | |
tree | 6f4d50beaa42328e24b1c6b56b6ec059e4ef21a5 /spectro/synthread.c |
Initial import of argyll version 1.5.1-8debian/1.5.1-8
Diffstat (limited to 'spectro/synthread.c')
-rw-r--r-- | spectro/synthread.c | 691 |
1 files changed, 691 insertions, 0 deletions
diff --git a/spectro/synthread.c b/spectro/synthread.c new file mode 100644 index 0000000..c4312f1 --- /dev/null +++ b/spectro/synthread.c @@ -0,0 +1,691 @@ + +/* + * Argyll Color Correction System + * Synthetic device target chart reader + * + * Author: Graeme W. Gill + * Date: 10/7/2007 + * + * Copyright 2002 - 2007 Graeme W. Gill + * All rights reserved. + * + * This material is licenced under the GNU AFFERO GENERAL PUBLIC LICENSE Version 3 :- + * see the License.txt file for licencing details. + * + * Based on fakeread.c + */ + +/* + Implements a synthetic RGB device response based on sRGB like + primaries. + + */ + +/* + * TTBD: + * + * Add non-linear mixing model + * + */ + + +#undef DEBUG + +#include <stdio.h> +#include <stdlib.h> +#include <math.h> +#include <sys/types.h> +#include <time.h> +#include <string.h> +#include "copyright.h" +#include "aconfig.h" +#include "numlib.h" +#include "cgats.h" +#include "xicc.h" +#include "icc.h" + +void +usage(char *mes) { + fprintf(stderr,"Synthetic device model test chart reader - Version %s\n", + ARGYLL_VERSION_STR); + fprintf(stderr,"Author: Graeme W. Gill, licensed under the AGPL Version 3\n"); + if (mes != NULL) + fprintf(stderr,"Error '%s'\n",mes); + fprintf(stderr,"usage: synthread [-v] [-s] [separation.icm] profile.[icc|mpp|ti3] outfile\n"); + fprintf(stderr," -v Verbose mode\n"); + fprintf(stderr," -p Use separation profile\n"); + fprintf(stderr," -l Construct and output in Lab rather than XYZ\n"); + fprintf(stderr," -i p1,p2,p3, Set input channel curve powers (default 1.0)\n"); + fprintf(stderr," -k x1:y1,x2:y2,x3:y2 Set input channel inflection points (default 0.5,0.5)\n"); + fprintf(stderr," -o p1,p2,p3, Set output channel curve powers (default 1.0)\n"); + fprintf(stderr," -r level Add average random deviation of <level>%% to input device values (after sep.)\n"); + fprintf(stderr," -R level Add average random deviation of <level>%% to output PCS values\n"); + fprintf(stderr," -u Make random deviations have uniform distributions rather than normal\n"); + fprintf(stderr," -b L,a,b Scale black point to target Lab value\n"); + fprintf(stderr," [separation.icm] Device link separation profile\n"); + fprintf(stderr," profile.[icc|mpp|ti3] ICC, MPP profile or TI3 to use\n"); + fprintf(stderr," outfile Base name for input[ti1]/output[ti3] file\n"); + exit(1); + } + + +typedef struct { + int dolab; /* Combine and output in Lab space */ + double ipow[3]; /* Input power applied */ + double ibpp[3]; /* Input breakpoint location, -ve if none */ + double ibpv[3]; /* Input breakpoint value, -ve if none */ + double col[3][3]; /* sRGB additive colorant values in XYZ :- [out][in] */ + double wnf[3]; /* White normalization factor */ + double opow[3]; /* Output power */ + double omax[3]; /* Output maximum that power operates into */ +} synthmodel; + +/* Symetrical power function */ +double spow(double val, double pp) { + if (val < 0.0) + return -pow(-val, pp); + else + return pow(val, pp); +} + +/* Execute the device model */ +static void domodel(synthmodel *p, double *out, double *in) { + double tmp[3]; + int i, j; + + /* Input power */ + for (j = 0; j < 3; j++) + tmp[j] = pow(in[j], p->ipow[j]); + + /* Input breakpoint */ + for (j = 0; j < 3; j++) { + if (p->ibpp[j] >= 0.0 && p->ibpv[j] >= 0.0) { + double b; + if (tmp[j] <= p->ibpp[j]) { + b = (tmp[j] - 0.0)/(p->ibpp[j] - 0.0); + tmp[j] = b * p->ibpv[j] + (1.0 - b) * 0.0; + } else { + b = (tmp[j] - p->ibpp[j])/(1.0 - p->ibpp[j]); + tmp[j] = b * 1.0 + (1.0 - b) * p->ibpv[j]; + } + } + } + + /* Lookup primary values, sum them, and then */ + /* apply output power */ + /* (We're not allowing for non-linear mixing yet) */ + for (j = 0; j < 3; j++) { + out[j] = 0.0; + for (i = 0; i < 3; i++) + out[j] += p->col[j][i] * tmp[i]; + out[j] = spow(out[j]/p->omax[j], p->opow[j]) * p->omax[j]; + } +} + +int main(int argc, char *argv[]) +{ + int i, j, rv = 0; + int fa,nfa; /* current argument we're looking at */ + int verb = 0; /* Verbose flag */ + int dosep = 0; /* Use separation before profile */ + int gfudge = 0; /* Do grey fudge, 1 = W->RGB, 2 = K->xxxK */ + double rdlevel = 0.0; /* Random device average deviation level (0.0 - 1.0) */ + double rplevel = 0.0; /* Random PCS average deviatio level (0.0 - 1.0) */ + int unidist = 0; /* Use uniform distribution of errors */ + double tbp[3] = { -1.0, 0.0, 0.0 }; /* Target black point */ + static char sepname[500] = { 0 }; /* ICC separation profile */ + static char inname[500] = { 0 }; /* Input cgats file base name */ + static char outname[500] = { 0 }; /* Output cgats file base name */ + cgats *icg; /* input cgats structure */ + cgats *ocg; /* output cgats structure */ + int nmask = 0; /* Test chart device colorant mask */ + int nchan = 0; /* Test chart number of device chanels */ + int npat; /* Number of patches */ + int si; /* Sample id index */ + int ti; /* Temp index */ + int fi; /* Colorspace index */ + + synthmodel md; /* Synthetic model */ + + /* ICC separation device link profile */ + icmFile *sep_fp = NULL; /* Color profile file */ + icc *sep_icco = NULL; /* Profile object */ + icmLuBase *sep_luo = NULL; /* Conversion object */ + icColorSpaceSignature sep_ins, sep_outs; /* Type of input and output spaces */ + int sep_inn; /* Number of input channels to separation */ + inkmask sep_nmask = 0; /* Colorant mask for separation input */ + double wp[3], bp[3]; /* ICC profile Lab white and black points */ + double bpt[3][3]; /* Black point transform matrix (Lab->Lab) */ + + + int inn, outn; /* Number of channels for conversion input, output */ + icColorSpaceSignature ins, outs; /* Type of conversion input and output spaces */ + int cnv_nmask = 0; /* Conversion input nmask */ + time_t clk = time(0); + struct tm *tsp = localtime(&clk); + char *atm = asctime(tsp); /* Ascii time */ + char *xyzfname[3] = { "XYZ_X", "XYZ_Y", "XYZ_Z" }; + char *labfname[3] = { "LAB_L", "LAB_A", "LAB_B" }; + + error_program = "Synthread"; + if (argc < 1) + usage("Too few arguments"); + + /* Initialise the default model */ + inn = 3; + ins = icSigRgbData; + outn = 3; + outs = icSigXYZData; + + md.dolab = 0; + + md.ipow[0] = 1.0; + md.ipow[1] = 1.0; + md.ipow[2] = 1.0; + + md.ibpp[0] = -1.0; + md.ibpv[0] = -1.0; + md.ibpp[1] = -1.0; + md.ibpv[1] = -1.0; + md.ibpp[2] = -1.0; + md.ibpv[2] = -1.0; + + md.col[0][0] = 0.412424; /* X from R */ + md.col[0][1] = 0.357579; /* X from G */ + md.col[0][2] = 0.180464; /* X from B */ + md.col[1][0] = 0.212656; /* Y from R */ + md.col[1][1] = 0.715158; /* Y from G */ + md.col[1][2] = 0.0721856; /* Y from B */ + md.col[2][0] = 0.0193324; /* Z from R */ + md.col[2][1] = 0.119193; /* Z from G */ + md.col[2][2] = 0.950444; /* Z from B */ + + md.opow[0] = 1.0; + md.opow[1] = 1.0; + md.opow[2] = 1.0; + + md.omax[0] = 1.0; + md.omax[1] = 1.0; + md.omax[2] = 1.0; + + /* Process the arguments */ + for(fa = 1;fa < argc;fa++) { + nfa = fa; /* skip to nfa if next argument is used */ + if (argv[fa][0] == '-') { /* Look for any flags */ + char *na = NULL; /* next argument after flag, null if none */ + + if (argv[fa][2] != '\000') + na = &argv[fa][2]; /* next is directly after flag */ + else + { + if ((fa+1) < argc) + { + if (argv[fa+1][0] != '-') + { + nfa = fa + 1; + na = argv[nfa]; /* next is seperate non-flag argument */ + } + } + } + + if (argv[fa][1] == '?') + usage("Usage requested"); + + /* Verbose */ + else if (argv[fa][1] == 'v' || argv[fa][1] == 'V') + verb = 1; + + /* Separation */ + else if (argv[fa][1] == 'p' || argv[fa][1] == 'P') + dosep = 1; + + /* Lab */ + else if (argv[fa][1] == 'l' || argv[fa][1] == 'L') + md.dolab = 1; + + /* Input curve power */ + else if (argv[fa][1] == 'i' || argv[fa][1] == 'I') { + fa = nfa; + if (na == NULL) usage("Expect argument to -i"); + if (sscanf(na, " %lf,%lf,%lf ", &md.ipow[0], &md.ipow[1], &md.ipow[2]) != 3) + usage("Argument to -i does not parse"); + } + + /* Input curve inflexction point */ + else if (argv[fa][1] == 'k' || argv[fa][1] == 'K') { + fa = nfa; + if (na == NULL) usage("Expect argument to -k"); + if (sscanf(na, " %lf:%lf,%lf:%lf,%lf:%lf ", + &md.ibpp[0], &md.ibpv[0], &md.ibpp[1], + &md.ibpv[1], &md.ibpp[2], &md.ibpv[2]) != 6) + usage("Argument to -k does not parse"); + } + + /* Output curve power */ + else if (argv[fa][1] == 'o' || argv[fa][1] == 'O') { + fa = nfa; + if (na == NULL) usage("Expect argument to -o"); + if (sscanf(na, " %lf,%lf,%lf ", &md.opow[0], &md.opow[1], &md.opow[2]) != 3) + usage("Argument to -o does not parse"); + } + + /* Uniform distrivuted errors */ + else if (argv[fa][1] == 'u' || argv[fa][1] == 'U') + unidist = 1; + + /* Random addition to device levels */ + else if (argv[fa][1] == 'r') { + fa = nfa; + if (na == NULL) usage("Expect argument to -r"); + rdlevel = 0.01 * atof(na); + rand32(time(NULL)); /* Init seed randomly */ + } + + /* Random addition to PCS levels */ + else if (argv[fa][1] == 'R') { + fa = nfa; + if (na == NULL) usage("Expect argument to -R"); + rplevel = 0.01 * atof(na); + rand32(time(NULL)); /* Init seed randomly */ + } + + /* Black point scale */ + else if (argv[fa][1] == 'b' || argv[fa][1] == 'B') { + if (na == NULL) usage("Expect argument to -b"); + fa = nfa; + if (sscanf(na, " %lf , %lf , %lf ",&tbp[0], &tbp[1], &tbp[2]) != 3) + usage("Couldn't parse argument to -b"); + if (tbp[0] < 0.0 || tbp[0] > 100.0) usage("-b L* value out of range"); + if (tbp[1] < -128.0 || tbp[1] > 128.0) usage("-b a* value out of range"); + if (tbp[2] < -128.0 || tbp[2] > 128.0) usage("-b b* value out of range"); + } + + else + usage("Unrecognised flag"); + } + else + break; + } + + /* Get the file name argument */ + if (dosep) { + if (fa >= argc || argv[fa][0] == '-') usage("Missing separation profile filename argument"); + strcpy(sepname,argv[fa++]); + } + + if (fa >= argc || argv[fa][0] == '-') usage("Missing basename argument"); + strcpy(inname,argv[fa]); + strcat(inname,".ti1"); + strcpy(outname,argv[fa]); + strcat(outname,".ti3"); + + /* Convert colorants to Lab, and scale white point */ + if (md.dolab) { + double white[3] = { 100.0, 0, 0 }; + double rot[3][3]; + +printf("~1 switching to Lab\n"); + + for (i = 0; i < 3; i++) { + double val[3]; + + val[0] = md.col[0][i]; + val[1] = md.col[1][i]; + val[2] = md.col[2][i]; +printf("~1 prim XYZ %f %f %f -> ", val[0], val[1], val[2]); + icmXYZ2Lab(&icmD50, val, val); +printf("Lab %f %f %f\n", val[0], val[1], val[2]); + md.col[0][i] = val[0]; + md.col[1][i] = val[1]; + md.col[2][i] = val[2]; + } + + /* Compute white sum */ + for (i = 0; i < 3; i++) { + md.omax[i] = 0.0; + for (j = 0; j < 3; j++) + md.omax[i] += md.col[i][j]; + } +printf("~1 sum = %f %f %f\n", md.omax[0], md.omax[1], md.omax[2]); + + /* Compute rotate and scale to map to white target */ + icmRotMat(rot, md.omax, white); + + /* Rotate and primaries to sum to white */ + for (i = 0; i < 3; i++) { + double val[3]; + + val[0] = md.col[0][i]; + val[1] = md.col[1][i]; + val[2] = md.col[2][i]; + icmMulBy3x3(val, rot, val); +printf("~1 Scaled primary %f %f %f\n", val[0], val[1], val[2]); + md.col[0][i] = val[0]; + md.col[1][i] = val[1]; + md.col[2][i] = val[2]; + } + + /* Compute output maximum factors to set out power range */ + for (i = 0; i < 3; i++) { + md.omax[i] = 0.0; + for (j = 0; j < 3; j++) { + if (i == 0) + md.omax[i] += md.col[i][j]; + else { + if (fabs(md.col[i][j]) > md.omax[i]) + md.omax[i] = fabs(md.col[i][j]); + + } + } + } + } else { + + /* Compute output maximum factors to set out power range */ + for (i = 0; i < 3; i++) { + md.omax[i] = 0.0; + for (j = 0; j < 3; j++) + md.omax[i] += md.col[i][j]; + } + } +printf("~1 omax = %f %f %f\n", md.omax[0], md.omax[1], md.omax[2]); + + /* Deal with separation */ + if (dosep) { + if ((sep_fp = new_icmFileStd_name(sepname,"r")) == NULL) + error ("Can't open file '%s'",sepname); + + if ((sep_icco = new_icc()) == NULL) + error ("Creation of ICC object failed"); + + /* Deal with ICC separation */ + if ((rv = sep_icco->read(sep_icco,sep_fp,0)) == 0) { + + /* Get a conversion object */ + if ((sep_luo = sep_icco->get_luobj(sep_icco, icmFwd, icmDefaultIntent, icmSigDefaultData, icmLuOrdNorm)) == NULL) { + error ("%d, %s",sep_icco->errc, sep_icco->err); + } + + /* Get details of conversion */ + sep_luo->spaces(sep_luo, &sep_ins, &sep_inn, &sep_outs, NULL, NULL, NULL, NULL, NULL, NULL); + sep_nmask = icx_icc_to_colorant_comb(sep_ins, sep_icco->header->deviceClass); + } + } + + /* Deal with input CGATS files */ + icg = new_cgats(); /* Create a CGATS structure */ + icg->add_other(icg, "CTI1"); /* our special input type is Calibration Target Information 1 */ + + if (icg->read_name(icg, inname)) + error("CGATS file read error : %s",icg->err); + + if (icg->ntables == 0 || icg->t[0].tt != tt_other || icg->t[0].oi != 0) + error ("Input file isn't a CTI1 format file"); + if (icg->ntables != 1 && icg->ntables != 2 && icg->ntables != 3) + error ("Input file doesn't contain one, two or three tables"); + + if ((npat = icg->t[0].nsets) <= 0) + error ("No sets of data"); + + /* Setup output cgats file */ + ocg = new_cgats(); /* Create a CGATS structure */ + ocg->add_other(ocg, "CTI3"); /* our special type is Calibration Target Information 3 */ + ocg->add_table(ocg, tt_other, 0); /* Start the first table */ + + ocg->add_kword(ocg, 0, "DESCRIPTOR", "Argyll Calibration Target chart information 3",NULL); + ocg->add_kword(ocg, 0, "ORIGINATOR", "Argyll synthread", NULL); + atm[strlen(atm)-1] = '\000'; /* Remove \n from end */ + ocg->add_kword(ocg, 0, "CREATED",atm, NULL); + + /* Assume a general output type device */ + ocg->add_kword(ocg, 0, "DEVICE_CLASS","OUTPUT", NULL); + + if ((ti = icg->find_kword(icg, 0, "SINGLE_DIM_STEPS")) >= 0) + ocg->add_kword(ocg, 0, "SINGLE_DIM_STEPS",icg->t[0].kdata[ti], NULL); + + if ((ti = icg->find_kword(icg, 0, "COMP_GREY_STEPS")) >= 0) + ocg->add_kword(ocg, 0, "COMP_GREY_STEPS",icg->t[0].kdata[ti], NULL); + + if ((ti = icg->find_kword(icg, 0, "MULTI_DIM_STEPS")) >= 0) + ocg->add_kword(ocg, 0, "MULTI_DIM_STEPS",icg->t[0].kdata[ti], NULL); + + if ((ti = icg->find_kword(icg, 0, "FULL_SPREAD_PATCHES")) >= 0) + ocg->add_kword(ocg, 0, "FULL_SPREAD_PATCHES",icg->t[0].kdata[ti], NULL); + + /* Fields we want */ + ocg->add_field(ocg, 0, "SAMPLE_ID", nqcs_t); + + if ((si = icg->find_field(icg, 0, "SAMPLE_ID")) < 0) + error ("Input file doesn't contain field SAMPLE_ID"); + + /* Figure out the color space */ + if ((fi = icg->find_kword(icg, 0, "COLOR_REP")) < 0) + error ("Input file doesn't contain keyword COLOR_REP"); + + if ((nmask = icx_char2inkmask(icg->t[0].kdata[fi])) == 0) + error ("Input file keyword COLOR_REP has unknown value"); + + { + int i, j, ii; + int chix[ICX_MXINKS]; /* Device chanel indexes */ + char *ident, *bident; + int nsetel = 0; + cgats_set_elem *setel; /* Array of set value elements */ + + nchan = icx_noofinks(nmask); + ident = icx_inkmask2char(nmask, 1); + bident = icx_inkmask2char(nmask, 0); + + /* Sanity check what we're going to do */ + if (dosep) { + + /* Check if sep ICC input is compatible with .ti1 */ + if (nmask == ICX_W && sep_ins == icSigRgbData) + gfudge = 1; + else if (nmask == ICX_K && sep_ins == icSigCmykData) + gfudge = 2; + else if (icx_colorant_comb_match_icc(nmask, sep_ins) == 0) { + error("Separation ICC device space '%s' dosen't match TI1 '%s'", + icm2str(icmColorSpaceSignature, sep_ins), + ident); /* Should free(). */ + } + + /* Check if separation ICC output is compatible with ICC/MPP/TI3 conversion */ + if (sep_outs != ins) + error("Synthetic device space '%s' dosen't match Separation ICC '%s'", + icm2str(icmColorSpaceSignature, ins), + icm2str(icmColorSpaceSignature, sep_outs)); + } else { + /* Check if synthetic device is compatible with .ti1 */ + if (nmask == ICX_W && ins == icSigRgbData) + gfudge = 1; + else if (nmask == ICX_K && ins == icSigCmykData) + gfudge = 2; /* Should allow for other colorant combo's that include black */ + else if (icx_colorant_comb_match_icc(nmask, ins) == 0) { + error("Synthetic device space '%s' dosen't match TI1 '%s'", + icm2str(icmColorSpaceSignature, ins), + ident); // Should free(). + } + } + + if ((ii = icg->find_kword(icg, 0, "TOTAL_INK_LIMIT")) >= 0) + ocg->add_kword(ocg, 0, "TOTAL_INK_LIMIT",icg->t[0].kdata[ii], NULL); + + nsetel += 1; /* For id */ + nsetel += nchan; /* For device values */ + nsetel += 3; /* For XYZ/Lab */ + + for (j = 0; j < nchan; j++) { + int imask; + char fname[100]; + + imask = icx_index2ink(nmask, j); + sprintf(fname,"%s_%s",nmask == ICX_W || nmask == ICX_K ? "GRAY" : bident, + icx_ink2char(imask)); + + if ((ii = icg->find_field(icg, 0, fname)) < 0) + error ("Input file doesn't contain field %s",fname); + if (icg->t[0].ftype[ii] != r_t) + error ("Field %s is wrong type",fname); + + ocg->add_field(ocg, 0, fname, r_t); + chix[j] = ii; + } + + /* Add PCS fields */ + for (j = 0; j < 3; j++) { + ocg->add_field(ocg, 0, md.dolab ? labfname[j] : xyzfname[j], r_t); + } + + { + char fname[100]; + sprintf(fname, md.dolab ? "%s_LAB" : "%s_XYZ", ident); + ocg->add_kword(ocg, 0, "COLOR_REP", fname, NULL); + } + + if ((setel = (cgats_set_elem *)malloc(sizeof(cgats_set_elem) * nsetel)) == NULL) + error("Malloc failed!"); + + /* Read all the test patches in, convert them, */ + /* and write them out. */ + for (i = 0; i < npat; i++) { + int k = 0; + char *id; + double odev[ICX_MXINKS], dev[ICX_MXINKS], sep[ICX_MXINKS], PCS[3]; + xspect out; + + id = ((char *)icg->t[0].fdata[i][si]); + for (j = 0; j < nchan; j++) { + double dv = *((double *)icg->t[0].fdata[i][chix[j]]) / 100.0; + odev[j] = dev[j] = sep[j] = dv; + } + + if (gfudge) { + int nch; + + if (dosep) /* Figure number of channels into conversion */ + nch = sep_inn; + else + nch = inn; + + if (gfudge == 1) { /* Convert W -> RGB */ + double wval = dev[0]; + for (j = 0; j < nch; j++) + dev[j] = sep[j] = wval; + + } else { /* Convert K->xxxK */ + int kch; + int inmask; + double kval = dev[0]; + + if (dosep) /* Figure number of channels into conversion */ + inmask = sep_nmask; + else + inmask = cnv_nmask; + + if (inmask == 0) + error("Input colorspace ambiguous - can't determine if it has black"); + + if ((kch = icx_ink2index(inmask, ICX_BLACK)) == -1) + error("Can't find black colorant for K fudge"); + for (j = 0; j < nch; j++) { + if (j == kch) + dev[j] = sep[j] = kval; + else + dev[j] = sep[j] = 0.0; + } + } + } + + if (dosep) + if (sep_luo->lookup(sep_luo, sep, dev) > 1) + error ("%d, %s",sep_icco->errc,sep_icco->err); + + /* Add randomness and non-linearity (rdlevel is avg. dev.) */ + /* Note dev/sep is 0-1.0 at this stage */ + for (j = 0; j < inn; j++) { + double dv = sep[j]; + if (rdlevel > 0.0) { + double rr; + if (unidist) + rr = d_rand(-2.0 * rdlevel, 2.0 * rdlevel); + else + rr = 1.2533 * rdlevel * norm_rand(); + dv += rr; + if (dv < 0.0) + dv = 0.0; + else if (dv > 1.0) + dv = 1.0; + } + sep[j] = dv; + } + + /* Do color conversion */ + domodel(&md, PCS, sep); + + if (tbp[0] >= 0) { /* Doing black point scaling */ + + for (j = 0; j < 3; j++) + PCS[j] -= wp[j]; + icmMulBy3x3(PCS, bpt, PCS); + for (j = 0; j < 3; j++) + PCS[j] += wp[j]; + } + + setel[k++].c = id; + + for (j = 0; j < nchan; j++) + setel[k++].d = 100.0 * odev[j]; + + if (md.dolab == 0) { + PCS[0] *= 100.0; + PCS[1] *= 100.0; + PCS[2] *= 100.0; + } + + /* Add randomness (rplevel is avg. dev.) */ + /* Note PCS is 0..100 XYZ or Lab at this point */ + if (rplevel > 0.0) { + for (j = 0; j < 3; j++) { + double dv = PCS[j]; + double rr; + if (unidist) + rr = 100.0 * d_rand(-2.0 * rplevel, 2.0 * rplevel); + else + rr = 100.0 * 1.2533 * rplevel * norm_rand(); + dv += rr; + + /* Don't let L*, X, Y or Z go negative */ + if ((!md.dolab || j == 0) && dv < 0.0) + dv = 0.0; + PCS[j] = dv; + } + } + + setel[k++].d = PCS[0]; + setel[k++].d = PCS[1]; + setel[k++].d = PCS[2]; + + ocg->add_setarr(ocg, 0, setel); + } + + free(setel); + free(ident); + free(bident); + } + + if (sep_luo != NULL) { + sep_luo->del(sep_luo); + sep_icco->del(sep_icco); + sep_fp->del(sep_fp); + } + + if (ocg->write_name(ocg, outname)) + error("Write error : %s",ocg->err); + + ocg->del(ocg); /* Clean up */ + icg->del(icg); /* Clean up */ + + return 0; +} + + |