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/* Copyright (c) 1996 Regents of the University of California */ |
| 2 |
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|
| 1 |
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#ifndef lint |
| 2 |
< |
static char SCCSid[] = "$SunId$ LBL"; |
| 2 |
> |
static const char RCSid[] = "$Id$"; |
| 3 |
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#endif |
| 6 |
– |
|
| 4 |
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/* |
| 5 |
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* Condition Radiance picture for display/output |
| 6 |
+ |
* Added white-balance adjustment 10/01 (GW). |
| 7 |
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*/ |
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|
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+ |
#include "platform.h" |
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+ |
#include "paths.h" |
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+ |
#include "rtprocess.h" |
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#include "pcond.h" |
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|
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– |
#include "random.h" |
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|
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– |
|
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#define LDMAX 100 /* default max. display luminance */ |
| 16 |
< |
#define LDMINF 0.01 /* default min. display lum. factor */ |
| 16 |
> |
#define LDDYN 32 /* default dynamic range */ |
| 17 |
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|
| 18 |
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int what2do = 0; /* desired adjustments */ |
| 19 |
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|
| 20 |
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double ldmax = LDMAX; /* maximum output luminance */ |
| 21 |
< |
double ldmin = 0.; /* minimum output luminance */ |
| 22 |
< |
double Bldmin, Bldmax; /* Bl(ldmin) and Bl(ldmax) */ |
| 21 |
> |
double lddyn = LDDYN; /* display dynamic range */ |
| 22 |
> |
double Bldmin, Bldmax; /* Bl(ldmax/lddyn) and Bl(ldmax) */ |
| 23 |
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|
| 24 |
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char *progname; /* global argv[0] */ |
| 25 |
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|
| 26 |
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char *infn; /* input file name */ |
| 27 |
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FILE *infp; /* input stream */ |
| 28 |
+ |
FILE *mapfp = NULL; /* tone-mapping function stream */ |
| 29 |
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VIEW ourview = STDVIEW; /* picture view */ |
| 30 |
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int gotview = 0; /* picture has view */ |
| 31 |
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double pixaspect = 1.0; /* pixel aspect ratio */ |
| 32 |
+ |
double fixfrac = 0.; /* histogram share due to fixations */ |
| 33 |
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RESOLU inpres; /* input picture resolution */ |
| 34 |
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|
| 35 |
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COLOR *fovimg; /* foveal (1 degree) averaged image */ |
| 36 |
< |
short fvxr, fvyr; /* foveal image resolution */ |
| 37 |
< |
int bwhist[HISTRES]; /* luminance histogram */ |
| 38 |
< |
long histot; /* total count of histogram */ |
| 36 |
> |
int fvxr, fvyr; /* foveal image resolution */ |
| 37 |
> |
float *crfimg; /* contrast reduction factors */ |
| 38 |
> |
short (*fixlst)[2]; /* fixation history list */ |
| 39 |
> |
int nfixations; /* number of fixation points */ |
| 40 |
> |
double bwhist[HISTRES]; /* luminance histogram */ |
| 41 |
> |
double histot; /* total count of histogram */ |
| 42 |
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double bwmin, bwmax; /* histogram limits */ |
| 43 |
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double bwavg; /* mean brightness */ |
| 44 |
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|
| 81 |
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case 'w': |
| 82 |
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bool(DO_CWEIGHT); |
| 83 |
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break; |
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+ |
case 'i': |
| 85 |
+ |
if (i+1 >= argc) goto userr; |
| 86 |
+ |
fixfrac = atof(argv[++i]); |
| 87 |
+ |
if (fixfrac > FTINY) what2do |= DO_FIXHIST; |
| 88 |
+ |
else what2do &= ~DO_FIXHIST; |
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+ |
break; |
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+ |
case 'I': |
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+ |
bool(DO_PREHIST); |
| 92 |
+ |
break; |
| 93 |
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case 'l': |
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bool(DO_LINEAR); |
| 95 |
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break; |
| 108 |
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case 'e': |
| 109 |
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if (i+1 >= argc) goto userr; |
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scalef = atof(argv[++i]); |
| 111 |
< |
if (argv[i][0] == '+' | argv[i][0] == '-') |
| 111 |
> |
if ((argv[i][0] == '+') | (argv[i][0] == '-')) |
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scalef = pow(2.0, scalef); |
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what2do |= DO_LINEAR; |
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break; |
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if (i+1 >= argc) goto userr; |
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mbcalfile = argv[++i]; |
| 118 |
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break; |
| 119 |
< |
case 't': |
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> |
case 'm': |
| 120 |
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if (i+1 >= argc) goto userr; |
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cwarpfile = argv[++i]; |
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break; |
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+ |
case 'u': |
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if (i+1 >= argc) goto userr; |
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ldmax = atof(argv[++i]); |
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if (ldmax <= FTINY) |
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goto userr; |
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break; |
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< |
case 'b': |
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> |
case 'd': |
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if (i+1 >= argc) goto userr; |
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< |
ldmin = atof(argv[++i]); |
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> |
lddyn = atof(argv[++i]); |
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break; |
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case 'x': |
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+ |
if (i+1 >= argc) goto userr; |
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if ((mapfp = fopen(argv[++i], "w")) == NULL) { |
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fprintf(stderr, |
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"%s: cannot open for writing\n", |
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argv[i]); |
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+ |
exit(1); |
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} |
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break; |
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default: |
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goto userr; |
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} |
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< |
if (mbcalfile != NULL & outprims != stdprims) { |
| 146 |
< |
fprintf(stderr, "%s: only one of -p or -f option supported\n", |
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< |
progname); |
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> |
if ((what2do & (DO_FIXHIST|DO_PREHIST)) == (DO_FIXHIST|DO_PREHIST)) { |
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> |
fprintf(stderr, "%s: only one of -i or -I option\n", progname); |
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exit(1); |
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} |
| 149 |
< |
if (outprims == stdprims & inprims != stdprims) |
| 150 |
< |
outprims = inprims; |
| 151 |
< |
if (ldmin <= FTINY) |
| 152 |
< |
ldmin = ldmax*LDMINF; |
| 153 |
< |
else if (ldmin >= ldmax) { |
| 129 |
< |
fprintf(stderr, "%s: Ldmin (%f) >= Ldmax (%f)!\n", progname, |
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< |
ldmin, ldmax); |
| 149 |
> |
if ((mbcalfile != NULL) + (cwarpfile != NULL) + |
| 150 |
> |
(outprims != stdprims) > 1) { |
| 151 |
> |
fprintf(stderr, |
| 152 |
> |
"%s: only one of -p, -m or -f option supported\n", |
| 153 |
> |
progname); |
| 154 |
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exit(1); |
| 155 |
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} |
| 156 |
< |
Bldmin = Bl(ldmin); |
| 156 |
> |
if ((outprims == stdprims) & (inprims != stdprims)) |
| 157 |
> |
outprims = inprims; |
| 158 |
> |
Bldmin = Bl(ldmax/lddyn); |
| 159 |
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Bldmax = Bl(ldmax); |
| 160 |
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if (i >= argc || i+2 < argc) |
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goto userr; |
| 162 |
+ |
/* open input file */ |
| 163 |
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if ((infp = fopen(infn=argv[i], "r")) == NULL) |
| 164 |
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syserror(infn); |
| 165 |
+ |
/* open output file */ |
| 166 |
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if (i+2 == argc && freopen(argv[i+1], "w", stdout) == NULL) |
| 167 |
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syserror(argv[i+1]); |
| 168 |
< |
#ifdef MSDOS |
| 169 |
< |
setmode(fileno(infp), O_BINARY); |
| 143 |
< |
setmode(fileno(stdout), O_BINARY); |
| 144 |
< |
#endif |
| 168 |
> |
SET_FILE_BINARY(infp); |
| 169 |
> |
SET_FILE_BINARY(stdout); |
| 170 |
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getahead(); /* load input header */ |
| 171 |
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printargs(argc, argv, stdout); /* add to output header */ |
| 172 |
< |
if (outprims != inprims) |
| 172 |
> |
if ((mbcalfile == NULL) & (outprims != stdprims)) |
| 173 |
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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 |
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mapimage(); /* map the picture */ |
| 181 |
+ |
if (mapfp != NULL) /* write out basic mapping */ |
| 182 |
+ |
putmapping(mapfp); |
| 183 |
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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] 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", |
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progname); |
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exit(1); |
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#undef bool |
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if (!strcmp(fmt,COLRFMT)) lumf = rgblum; |
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else if (!strcmp(fmt,CIEFMT)) lumf = cielum; |
| 210 |
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else lumf = NULL; |
| 211 |
< |
return; /* don't echo */ |
| 211 |
> |
return(0); /* don't echo */ |
| 212 |
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} |
| 213 |
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if (isprims(s)) { /* get input primaries */ |
| 214 |
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primsval(inprimS, s); |
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inprims= inprimS; |
| 216 |
< |
return; /* don't echo */ |
| 216 |
> |
return(0); /* don't echo */ |
| 217 |
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} |
| 218 |
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if (isexpos(s)) { /* picture exposure */ |
| 219 |
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inpexp *= exposval(s); |
| 220 |
< |
return; /* don't echo */ |
| 220 |
> |
return(0); /* don't echo */ |
| 221 |
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} |
| 222 |
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if (isaspect(s)) /* pixel aspect ratio */ |
| 223 |
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pixaspect *= aspectval(s); |
| 224 |
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if (isview(s)) /* image view */ |
| 225 |
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gotview += sscanview(&ourview, s); |
| 226 |
< |
fputs(s, stdout); |
| 226 |
> |
return(fputs(s, stdout)); |
| 227 |
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} |
| 228 |
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|
| 229 |
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|
| 238 |
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exit(1); |
| 239 |
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} |
| 240 |
|
if (lumf == rgblum) |
| 241 |
< |
comprgb2xyzmat(inrgb2xyz, inprims); |
| 241 |
> |
comprgb2xyzWBmat(inrgb2xyz, inprims); |
| 242 |
|
else if (mbcalfile != NULL) { |
| 243 |
|
fprintf(stderr, "%s: macbethcal only works with RGB pictures\n", |
| 244 |
|
progname); |
| 245 |
|
exit(1); |
| 246 |
|
} |
| 247 |
|
if (!gotview || ourview.type == VT_PAR) { |
| 248 |
< |
copystruct(&ourview, &stdview); |
| 248 |
> |
ourview = stdview; |
| 249 |
|
ourview.type = VT_PER; |
| 250 |
|
if (pixaspect*inpres.yr < inpres.xr) { |
| 251 |
|
ourview.horiz = 40.0; |
| 269 |
|
{ |
| 270 |
|
COLOR *scan; |
| 271 |
|
|
| 272 |
< |
#ifdef DEBUG |
| 240 |
< |
fprintf(stderr, "%s: generating histogram...", progname); |
| 241 |
< |
#endif |
| 242 |
< |
fovhist(); /* generate adaptation histogram */ |
| 243 |
< |
#ifdef DEBUG |
| 244 |
< |
fputs("done\n", stderr); |
| 245 |
< |
#endif |
| 272 |
> |
comphist(); /* generate adaptation histogram */ |
| 273 |
|
check2do(); /* modify what2do flags */ |
| 274 |
< |
if (what2do&DO_VEIL) { |
| 275 |
< |
#ifdef DEBUG |
| 276 |
< |
fprintf(stderr, "%s: computing veiling...", progname); |
| 274 |
> |
if (what2do&DO_VEIL) |
| 275 |
> |
compveil(); /* compute veil image */ |
| 276 |
> |
if (!(what2do&DO_LINEAR)) |
| 277 |
> |
if (mkbrmap() < 0) /* make tone map */ |
| 278 |
> |
what2do |= DO_LINEAR; /* failed! -- use linear */ |
| 279 |
> |
#if ADJ_VEIL |
| 280 |
> |
else if (what2do&DO_VEIL) |
| 281 |
> |
adjveil(); /* else adjust veil image */ |
| 282 |
|
#endif |
| 251 |
– |
compveil(); |
| 252 |
– |
#ifdef DEBUG |
| 253 |
– |
fputs("done\n", stderr); |
| 254 |
– |
#endif |
| 255 |
– |
} |
| 256 |
– |
#ifdef DEBUG |
| 257 |
– |
fprintf(stderr, "%s: computing brightness mapping...", progname); |
| 258 |
– |
#endif |
| 259 |
– |
if (!(what2do&DO_LINEAR) && mkbrmap() < 0) { /* make tone map */ |
| 260 |
– |
what2do |= DO_LINEAR; /* use linear scaling */ |
| 261 |
– |
#ifdef DEBUG |
| 262 |
– |
fputs("failed!\n", stderr); |
| 263 |
– |
} else |
| 264 |
– |
fputs("done\n", stderr); |
| 265 |
– |
#else |
| 266 |
– |
} |
| 267 |
– |
#endif |
| 283 |
|
if (what2do&DO_LINEAR) { |
| 284 |
|
if (scalef <= FTINY) { |
| 285 |
|
if (what2do&DO_HSENS) |
| 289 |
|
scalef = Lb(0.5*(Bldmax+Bldmin)) / Lb(bwavg); |
| 290 |
|
scalef *= WHTEFFICACY/(inpexp*ldmax); |
| 291 |
|
} |
| 277 |
– |
#ifdef DEBUG |
| 278 |
– |
fprintf(stderr, "%s: linear scaling factor = %f\n", |
| 279 |
– |
progname, scalef); |
| 280 |
– |
#endif |
| 292 |
|
fputexpos(inpexp*scalef, stdout); /* record exposure */ |
| 293 |
|
if (lumf == cielum) scalef /= WHTEFFICACY; |
| 294 |
|
} |
| 295 |
< |
putchar('\n'); /* complete header */ |
| 295 |
> |
fputformat(COLRFMT, stdout); /* complete header */ |
| 296 |
> |
putchar('\n'); |
| 297 |
|
fputsresolu(&inpres, stdout); /* resolution doesn't change */ |
| 298 |
< |
|
| 298 |
> |
/* condition our image */ |
| 299 |
|
for (scan = firstscan(); scan != NULL; scan = nextscan()) |
| 300 |
|
if (fwritescan(scan, scanlen(&inpres), stdout) < 0) { |
| 301 |
|
fprintf(stderr, "%s: scanline write error\n", |
| 305 |
|
} |
| 306 |
|
|
| 307 |
|
|
| 308 |
< |
double |
| 297 |
< |
centprob(x, y) /* center-weighting probability function */ |
| 298 |
< |
int x, y; |
| 308 |
> |
getfovimg() /* load foveal sampled image */ |
| 309 |
|
{ |
| 310 |
< |
double xr, yr; |
| 301 |
< |
|
| 302 |
< |
xr = (x+.5)/fvxr - .5; |
| 303 |
< |
yr = (y+.5)/fvyr - .5; |
| 304 |
< |
return(1. - xr*xr - yr*yr); /* radial, == 0.5 at corners */ |
| 305 |
< |
} |
| 306 |
< |
|
| 307 |
< |
|
| 308 |
< |
fovhist() /* create foveal sampled image and histogram */ |
| 309 |
< |
{ |
| 310 |
< |
extern FILE *popen(); |
| 311 |
< |
char combuf[128]; |
| 312 |
< |
double l, b, lwmin, lwmax; |
| 310 |
> |
char combuf[PATH_MAX]; |
| 311 |
|
FILE *fp; |
| 312 |
|
int x, y; |
| 313 |
< |
|
| 313 |
> |
/* compute image size */ |
| 314 |
|
fvxr = sqrt(ourview.hn2)/FOVDIA + 0.5; |
| 315 |
|
if (fvxr < 2) fvxr = 2; |
| 316 |
|
fvyr = sqrt(ourview.vn2)/FOVDIA + 0.5; |
| 317 |
|
if (fvyr < 2) fvyr = 2; |
| 318 |
< |
if (!(inpres.or & YMAJOR)) { /* picture is rotated? */ |
| 318 |
> |
if (!(inpres.rt & YMAJOR)) { /* picture is rotated? */ |
| 319 |
|
y = fvyr; |
| 320 |
|
fvyr = fvxr; |
| 321 |
|
fvxr = y; |
| 322 |
|
} |
| 323 |
|
if ((fovimg = (COLOR *)malloc(fvxr*fvyr*sizeof(COLOR))) == NULL) |
| 324 |
|
syserror("malloc"); |
| 325 |
< |
sprintf(combuf, "pfilt -1 -b -x %d -y %d %s", fvxr, fvyr, infn); |
| 325 |
> |
sprintf(combuf, "pfilt -1 -b -pa 0 -x %d -y %d \"%s\"", fvxr, fvyr, infn); |
| 326 |
|
if ((fp = popen(combuf, "r")) == NULL) |
| 327 |
|
syserror("popen"); |
| 328 |
|
getheader(fp, NULL, NULL); /* skip header */ |
| 329 |
< |
if (fgetresolu(&x, &y, fp) < 0 || x != fvxr | y != fvyr) |
| 329 |
> |
if (fgetresolu(&x, &y, fp) < 0 || (x != fvxr) | (y != fvyr)) |
| 330 |
|
goto readerr; |
| 331 |
|
for (y = 0; y < fvyr; y++) |
| 332 |
|
if (freadscan(fovscan(y), fvxr, fp) < 0) |
| 333 |
|
goto readerr; |
| 334 |
|
pclose(fp); |
| 337 |
– |
lwmin = 1e10; /* find extrema */ |
| 338 |
– |
lwmax = 0.; |
| 339 |
– |
for (y = 0; y < fvyr; y++) |
| 340 |
– |
for (x = 0; x < fvxr; x++) { |
| 341 |
– |
l = plum(fovscan(y)[x]); |
| 342 |
– |
if (l < lwmin) lwmin = l; |
| 343 |
– |
if (l > lwmax) lwmax = l; |
| 344 |
– |
} |
| 345 |
– |
if (lwmin < LMIN) lwmin = LMIN; |
| 346 |
– |
if (lwmax > LMAX) lwmax = LMAX; |
| 347 |
– |
/* compute histogram */ |
| 348 |
– |
bwmin = Bl(lwmin)*(1. - .01/HISTRES); |
| 349 |
– |
bwmax = Bl(lwmax)*(1. + .01/HISTRES); |
| 350 |
– |
bwavg = 0.; |
| 351 |
– |
for (y = 0; y < fvyr; y++) |
| 352 |
– |
for (x = 0; x < fvxr; x++) { |
| 353 |
– |
if (what2do & DO_CWEIGHT && |
| 354 |
– |
frandom() > centprob(x,y)) |
| 355 |
– |
continue; |
| 356 |
– |
l = plum(fovscan(y)[x]); |
| 357 |
– |
b = Bl(l); |
| 358 |
– |
if (b < bwmin) continue; |
| 359 |
– |
if (b > bwmax) continue; |
| 360 |
– |
bwavg += b; |
| 361 |
– |
bwhc(b)++; |
| 362 |
– |
histot++; |
| 363 |
– |
} |
| 364 |
– |
bwavg /= (double)histot; |
| 335 |
|
return; |
| 336 |
|
readerr: |
| 337 |
|
fprintf(stderr, "%s: error reading from pfilt process in fovimage\n", |
| 342 |
|
|
| 343 |
|
check2do() /* check histogram to see what isn't worth doing */ |
| 344 |
|
{ |
| 345 |
< |
long sum; |
| 345 |
> |
double sum; |
| 346 |
|
double b, l; |
| 347 |
|
register int i; |
| 348 |
|
|
| 349 |
|
/* check for within display range */ |
| 350 |
< |
l = Lb(bwmax)/Lb(bwmin); |
| 381 |
< |
if (l <= ldmax/ldmin) |
| 350 |
> |
if (bwmax - bwmin <= Bldmax - Bldmin) |
| 351 |
|
what2do |= DO_LINEAR; |
| 352 |
|
/* determine if veiling significant */ |
| 353 |
< |
if (l < 100.) /* heuristic */ |
| 353 |
> |
if (bwmax - bwmin < 4.5) /* heuristic */ |
| 354 |
|
what2do &= ~DO_VEIL; |
| 355 |
|
|
| 356 |
|
if (!(what2do & (DO_ACUITY|DO_COLOR))) |
| 357 |
|
return; |
| 358 |
|
/* find 5th percentile */ |
| 359 |
< |
sum = histot*0.05 + .5; |
| 359 |
> |
sum = histot*0.05; |
| 360 |
|
for (i = 0; i < HISTRES; i++) |
| 361 |
|
if ((sum -= bwhist[i]) <= 0) |
| 362 |
|
break; |
