| 12 |
|
|
| 13 |
|
|
| 14 |
|
#define LDMAX 100 /* default max. display luminance */ |
| 15 |
< |
#define LDMINF 0.01 /* default min. display lum. factor */ |
| 15 |
> |
#define LDDYN 32 /* default dynamic range */ |
| 16 |
|
|
| 17 |
|
int what2do = 0; /* desired adjustments */ |
| 18 |
|
|
| 19 |
|
double ldmax = LDMAX; /* maximum output luminance */ |
| 20 |
< |
double ldmin = 0.; /* minimum output luminance */ |
| 21 |
< |
double Bldmin, Bldmax; /* Bl(ldmin) and Bl(ldmax) */ |
| 20 |
> |
double lddyn = LDDYN; /* display dynamic range */ |
| 21 |
> |
double Bldmin, Bldmax; /* Bl(ldmax/lddyn) and Bl(ldmax) */ |
| 22 |
|
|
| 23 |
|
char *progname; /* global argv[0] */ |
| 24 |
|
|
| 28 |
|
VIEW ourview = STDVIEW; /* picture view */ |
| 29 |
|
int gotview = 0; /* picture has view */ |
| 30 |
|
double pixaspect = 1.0; /* pixel aspect ratio */ |
| 31 |
+ |
double fixfrac = 0.; /* histogram share due to fixations */ |
| 32 |
|
RESOLU inpres; /* input picture resolution */ |
| 33 |
|
|
| 34 |
|
COLOR *fovimg; /* foveal (1 degree) averaged image */ |
| 35 |
|
short fvxr, fvyr; /* foveal image resolution */ |
| 36 |
+ |
short (*fixlst)[2]; /* fixation history list */ |
| 37 |
+ |
int nfixations; /* number of fixation points */ |
| 38 |
|
float bwhist[HISTRES]; /* luminance histogram */ |
| 39 |
|
double histot; /* total count of histogram */ |
| 40 |
|
double bwmin, bwmax; /* histogram limits */ |
| 79 |
|
case 'w': |
| 80 |
|
bool(DO_CWEIGHT); |
| 81 |
|
break; |
| 82 |
+ |
case 'i': |
| 83 |
+ |
if (i+1 >= argc) goto userr; |
| 84 |
+ |
fixfrac = atof(argv[++i]); |
| 85 |
+ |
if (fixfrac > FTINY) what2do |= DO_FIXHIST; |
| 86 |
+ |
else what2do &= ~DO_FIXHIST; |
| 87 |
+ |
break; |
| 88 |
+ |
case 'I': |
| 89 |
+ |
bool(DO_PREHIST); |
| 90 |
+ |
break; |
| 91 |
|
case 'l': |
| 92 |
|
bool(DO_LINEAR); |
| 93 |
|
break; |
| 114 |
|
if (i+1 >= argc) goto userr; |
| 115 |
|
mbcalfile = argv[++i]; |
| 116 |
|
break; |
| 117 |
< |
case 't': |
| 117 |
> |
case 'm': |
| 118 |
|
if (i+1 >= argc) goto userr; |
| 119 |
+ |
cwarpfile = argv[++i]; |
| 120 |
+ |
break; |
| 121 |
+ |
case 'u': |
| 122 |
+ |
if (i+1 >= argc) goto userr; |
| 123 |
|
ldmax = atof(argv[++i]); |
| 124 |
|
if (ldmax <= FTINY) |
| 125 |
|
goto userr; |
| 126 |
|
break; |
| 127 |
< |
case 'b': |
| 127 |
> |
case 'd': |
| 128 |
|
if (i+1 >= argc) goto userr; |
| 129 |
< |
ldmin = atof(argv[++i]); |
| 129 |
> |
lddyn = atof(argv[++i]); |
| 130 |
|
break; |
| 131 |
< |
case 'm': |
| 131 |
> |
case 'x': |
| 132 |
|
if (i+1 >= argc) goto userr; |
| 133 |
|
if ((mapfp = fopen(argv[++i], "w")) == NULL) { |
| 134 |
|
fprintf(stderr, |
| 140 |
|
default: |
| 141 |
|
goto userr; |
| 142 |
|
} |
| 143 |
< |
if (mbcalfile != NULL & outprims != stdprims) { |
| 144 |
< |
fprintf(stderr, "%s: only one of -p or -f option supported\n", |
| 143 |
> |
if ((what2do & (DO_FIXHIST|DO_PREHIST)) == (DO_FIXHIST|DO_PREHIST)) { |
| 144 |
> |
fprintf(stderr, "%s: only one of -i or -I option\n", progname); |
| 145 |
> |
exit(1); |
| 146 |
> |
} |
| 147 |
> |
if ((mbcalfile != NULL) + (cwarpfile != NULL) + |
| 148 |
> |
(outprims != stdprims) > 1) { |
| 149 |
> |
fprintf(stderr, |
| 150 |
> |
"%s: only one of -p, -m or -f option supported\n", |
| 151 |
|
progname); |
| 152 |
|
exit(1); |
| 153 |
|
} |
| 154 |
|
if (outprims == stdprims & inprims != stdprims) |
| 155 |
|
outprims = inprims; |
| 156 |
< |
if (ldmin <= FTINY) |
| 135 |
< |
ldmin = ldmax*LDMINF; |
| 136 |
< |
else if (ldmin >= ldmax) { |
| 137 |
< |
fprintf(stderr, "%s: Ldmin (%f) >= Ldmax (%f)!\n", progname, |
| 138 |
< |
ldmin, ldmax); |
| 139 |
< |
exit(1); |
| 140 |
< |
} |
| 141 |
< |
Bldmin = Bl(ldmin); |
| 156 |
> |
Bldmin = Bl(ldmax/lddyn); |
| 157 |
|
Bldmax = Bl(ldmax); |
| 158 |
|
if (i >= argc || i+2 < argc) |
| 159 |
|
goto userr; |
| 160 |
+ |
/* open input file */ |
| 161 |
|
if ((infp = fopen(infn=argv[i], "r")) == NULL) |
| 162 |
|
syserror(infn); |
| 163 |
+ |
/* open output file */ |
| 164 |
|
if (i+2 == argc && freopen(argv[i+1], "w", stdout) == NULL) |
| 165 |
|
syserror(argv[i+1]); |
| 166 |
|
#ifdef MSDOS |
| 169 |
|
#endif |
| 170 |
|
getahead(); /* load input header */ |
| 171 |
|
printargs(argc, argv, stdout); /* add to output header */ |
| 172 |
< |
if (outprims != inprims) |
| 172 |
> |
if (mbcalfile == NULL & outprims != stdprims) |
| 173 |
|
fputprims(outprims, stdout); |
| 174 |
+ |
if ((what2do & (DO_PREHIST|DO_VEIL|DO_ACUITY)) != DO_PREHIST) |
| 175 |
+ |
getfovimg(); /* get foveal sample image? */ |
| 176 |
+ |
if (what2do&DO_PREHIST) /* get histogram? */ |
| 177 |
+ |
gethisto(stdin); |
| 178 |
+ |
else if (what2do&DO_FIXHIST) /* get fixation history? */ |
| 179 |
+ |
getfixations(stdin); |
| 180 |
|
mapimage(); /* map the picture */ |
| 181 |
|
if (mapfp != NULL) /* write out basic mapping */ |
| 182 |
|
putmapping(mapfp); |
| 183 |
|
exit(0); |
| 184 |
|
userr: |
| 185 |
< |
fprintf(stderr, "Usage: %s [-{h|a|v|s|c|l|w}[+-]][-e ev][-p xr yr xg yg xb yb xw yw|-f mbf.cal][-t Ldmax][-b Ldmin][-m mapfile] inpic [outpic]\n", |
| 185 |
> |
fprintf(stderr, "Usage: %s [-{h|a|v|s|c|l|w}[+-]][-I|-i ffrac][-e ev][-p xr yr xg yg xb yb xw yw|-f mbf.cal|-m rgb.cwp][-u Ldmax][-d Lddyn][-x mapfile] inpic [outpic]\n", |
| 186 |
|
progname); |
| 187 |
|
exit(1); |
| 188 |
|
#undef bool |
| 208 |
|
if (!strcmp(fmt,COLRFMT)) lumf = rgblum; |
| 209 |
|
else if (!strcmp(fmt,CIEFMT)) lumf = cielum; |
| 210 |
|
else lumf = NULL; |
| 211 |
< |
return; /* don't echo */ |
| 211 |
> |
return(0); /* don't echo */ |
| 212 |
|
} |
| 213 |
|
if (isprims(s)) { /* get input primaries */ |
| 214 |
|
primsval(inprimS, s); |
| 215 |
|
inprims= inprimS; |
| 216 |
< |
return; /* don't echo */ |
| 216 |
> |
return(0); /* don't echo */ |
| 217 |
|
} |
| 218 |
|
if (isexpos(s)) { /* picture exposure */ |
| 219 |
|
inpexp *= exposval(s); |
| 220 |
< |
return; /* don't echo */ |
| 220 |
> |
return(0); /* don't echo */ |
| 221 |
|
} |
| 222 |
|
if (isaspect(s)) /* pixel aspect ratio */ |
| 223 |
|
pixaspect *= aspectval(s); |
| 224 |
|
if (isview(s)) /* image view */ |
| 225 |
|
gotview += sscanview(&ourview, s); |
| 226 |
< |
fputs(s, stdout); |
| 226 |
> |
return(fputs(s, stdout)); |
| 227 |
|
} |
| 228 |
|
|
| 229 |
|
|
| 269 |
|
{ |
| 270 |
|
COLOR *scan; |
| 271 |
|
|
| 249 |
– |
#ifdef DEBUG |
| 250 |
– |
fprintf(stderr, "%s: generating histogram...", progname); |
| 251 |
– |
#endif |
| 252 |
– |
getfovimg(); /* get foveal sample image */ |
| 272 |
|
comphist(); /* generate adaptation histogram */ |
| 254 |
– |
#ifdef DEBUG |
| 255 |
– |
fputs("done\n", stderr); |
| 256 |
– |
#endif |
| 273 |
|
check2do(); /* modify what2do flags */ |
| 274 |
< |
if (what2do&DO_VEIL) { |
| 259 |
< |
#ifdef DEBUG |
| 260 |
< |
fprintf(stderr, "%s: computing veiling...", progname); |
| 261 |
< |
#endif |
| 274 |
> |
if (what2do&DO_VEIL) |
| 275 |
|
compveil(); |
| 276 |
< |
#ifdef DEBUG |
| 277 |
< |
fputs("done\n", stderr); |
| 265 |
< |
#endif |
| 266 |
< |
} |
| 267 |
< |
#ifdef DEBUG |
| 268 |
< |
fprintf(stderr, "%s: computing brightness mapping...", progname); |
| 269 |
< |
#endif |
| 270 |
< |
if (!(what2do&DO_LINEAR) && mkbrmap() < 0) { /* make tone map */ |
| 271 |
< |
what2do |= DO_LINEAR; /* use linear scaling */ |
| 272 |
< |
#ifdef DEBUG |
| 273 |
< |
fputs("failed!\n", stderr); |
| 274 |
< |
} else |
| 275 |
< |
fputs("done\n", stderr); |
| 276 |
< |
#else |
| 277 |
< |
} |
| 278 |
< |
#endif |
| 276 |
> |
if (!(what2do&DO_LINEAR) && mkbrmap() < 0) /* make tone map */ |
| 277 |
> |
what2do |= DO_LINEAR; /* failed! -- use linear scaling */ |
| 278 |
|
if (what2do&DO_LINEAR) { |
| 279 |
|
if (scalef <= FTINY) { |
| 280 |
|
if (what2do&DO_HSENS) |
| 284 |
|
scalef = Lb(0.5*(Bldmax+Bldmin)) / Lb(bwavg); |
| 285 |
|
scalef *= WHTEFFICACY/(inpexp*ldmax); |
| 286 |
|
} |
| 288 |
– |
#ifdef DEBUG |
| 289 |
– |
fprintf(stderr, "%s: linear scaling factor = %f\n", |
| 290 |
– |
progname, scalef); |
| 291 |
– |
#endif |
| 287 |
|
fputexpos(inpexp*scalef, stdout); /* record exposure */ |
| 288 |
|
if (lumf == cielum) scalef /= WHTEFFICACY; |
| 289 |
|
} |
| 290 |
< |
putchar('\n'); /* complete header */ |
| 290 |
> |
fputformat(COLRFMT, stdout); /* complete header */ |
| 291 |
> |
putchar('\n'); |
| 292 |
|
fputsresolu(&inpres, stdout); /* resolution doesn't change */ |
| 293 |
< |
|
| 293 |
> |
/* condition our image */ |
| 294 |
|
for (scan = firstscan(); scan != NULL; scan = nextscan()) |
| 295 |
|
if (fwritescan(scan, scanlen(&inpres), stdout) < 0) { |
| 296 |
|
fprintf(stderr, "%s: scanline write error\n", |
| 300 |
|
} |
| 301 |
|
|
| 302 |
|
|
| 307 |
– |
double |
| 308 |
– |
centprob(x, y) /* center-weighting probability function */ |
| 309 |
– |
int x, y; |
| 310 |
– |
{ |
| 311 |
– |
double xr, yr, p; |
| 312 |
– |
/* paraboloid, 0 at 90 degrees from center */ |
| 313 |
– |
xr = (x - .5*(fvxr-1))/90.; /* 180 degree fisheye has fv?r == 90 */ |
| 314 |
– |
yr = (y - .5*(fvyr-1))/90.; |
| 315 |
– |
p = 1. - xr*xr - yr*yr; |
| 316 |
– |
return(p < 0. ? 0. : p); |
| 317 |
– |
} |
| 318 |
– |
|
| 319 |
– |
|
| 303 |
|
getfovimg() /* load foveal sampled image */ |
| 304 |
|
{ |
| 305 |
|
extern FILE *popen(); |
| 318 |
|
} |
| 319 |
|
if ((fovimg = (COLOR *)malloc(fvxr*fvyr*sizeof(COLOR))) == NULL) |
| 320 |
|
syserror("malloc"); |
| 321 |
< |
sprintf(combuf, "pfilt -1 -b -x %d -y %d %s", fvxr, fvyr, infn); |
| 321 |
> |
sprintf(combuf, "pfilt -1 -b -pa 0 -x %d -y %d %s", fvxr, fvyr, infn); |
| 322 |
|
if ((fp = popen(combuf, "r")) == NULL) |
| 323 |
|
syserror("popen"); |
| 324 |
|
getheader(fp, NULL, NULL); /* skip header */ |
| 336 |
|
} |
| 337 |
|
|
| 338 |
|
|
| 356 |
– |
comphist() /* create foveal sampled image and histogram */ |
| 357 |
– |
{ |
| 358 |
– |
double l, b, lwmin, lwmax; |
| 359 |
– |
register int x, y; |
| 360 |
– |
|
| 361 |
– |
lwmin = 1e10; /* find extrema */ |
| 362 |
– |
lwmax = 0.; |
| 363 |
– |
for (y = 0; y < fvyr; y++) |
| 364 |
– |
for (x = 0; x < fvxr; x++) { |
| 365 |
– |
l = plum(fovscan(y)[x]); |
| 366 |
– |
if (l < lwmin) lwmin = l; |
| 367 |
– |
if (l > lwmax) lwmax = l; |
| 368 |
– |
} |
| 369 |
– |
lwmin -= FTINY; |
| 370 |
– |
lwmax += FTINY; |
| 371 |
– |
if (lwmin < LMIN) lwmin = LMIN; |
| 372 |
– |
if (lwmax > LMAX) lwmax = LMAX; |
| 373 |
– |
/* compute histogram */ |
| 374 |
– |
bwmin = Bl(lwmin); |
| 375 |
– |
bwmax = Bl(lwmax); |
| 376 |
– |
bwavg = 0.; |
| 377 |
– |
for (y = 0; y < fvyr; y++) |
| 378 |
– |
for (x = 0; x < fvxr; x++) { |
| 379 |
– |
l = plum(fovscan(y)[x]); |
| 380 |
– |
if (l < lwmin) continue; |
| 381 |
– |
if (l > lwmax) continue; |
| 382 |
– |
b = Bl(l); |
| 383 |
– |
bwavg += b; |
| 384 |
– |
l = what2do&DO_CWEIGHT ? centprob(x,y) : 1.; |
| 385 |
– |
bwhist[bwhi(b)] += l; |
| 386 |
– |
histot += l; |
| 387 |
– |
} |
| 388 |
– |
bwavg /= histot; |
| 389 |
– |
} |
| 390 |
– |
|
| 391 |
– |
|
| 339 |
|
check2do() /* check histogram to see what isn't worth doing */ |
| 340 |
|
{ |
| 341 |
|
double sum; |
| 343 |
|
register int i; |
| 344 |
|
|
| 345 |
|
/* check for within display range */ |
| 346 |
< |
l = Lb(bwmax)/Lb(bwmin); |
| 400 |
< |
if (l <= ldmax/ldmin) |
| 346 |
> |
if (bwmax - bwmin <= Bldmax - Bldmin) |
| 347 |
|
what2do |= DO_LINEAR; |
| 348 |
|
/* determine if veiling significant */ |
| 349 |
< |
if (l < 100.) /* heuristic */ |
| 349 |
> |
if (bwmax - bwmin < 4.5) /* heuristic */ |
| 350 |
|
what2do &= ~DO_VEIL; |
| 351 |
|
|
| 352 |
|
if (!(what2do & (DO_ACUITY|DO_COLOR))) |