1 |
– |
/* Copyright (c) 1995 Regents of the University of California */ |
2 |
– |
|
1 |
|
#ifndef lint |
2 |
< |
static char SCCSid[] = "$SunId$ LBL"; |
2 |
> |
static const char RCSid[] = "$Id$"; |
3 |
|
#endif |
6 |
– |
|
4 |
|
/* |
5 |
|
* Calibrate a scanned MacBeth Color Checker Chart |
6 |
|
* |
7 |
< |
* Produce a .cal file suitable for use with pcomb. |
7 |
> |
* Produce a .cal file suitable for use with pcomb, |
8 |
> |
* or .cwp file suitable for use with pcwarp. |
9 |
> |
* |
10 |
> |
* Warping code depends on conformance of COLOR and W3VEC types. |
11 |
|
*/ |
12 |
|
|
13 |
< |
#include <stdio.h> |
14 |
< |
#ifdef MSDOS |
15 |
< |
#include <fcntl.h> |
16 |
< |
#endif |
13 |
> |
#include <math.h> |
14 |
> |
|
15 |
> |
#include "platform.h" |
16 |
> |
#include "paths.h" |
17 |
> |
#include "rtio.h" |
18 |
|
#include "color.h" |
19 |
|
#include "resolu.h" |
20 |
|
#include "pmap.h" |
21 |
+ |
#include "warp3d.h" |
22 |
+ |
#include "mx3.h" |
23 |
|
|
24 |
|
/* MacBeth colors */ |
25 |
|
#define DarkSkin 0 |
46 |
|
#define Neutral5 21 |
47 |
|
#define Neutral35 22 |
48 |
|
#define Black 23 |
49 |
< |
/* computed from 5nm spectral measurements */ |
49 |
> |
/* computed from 10nm spectral measurements */ |
50 |
|
/* CIE 1931 2 degree obs, equal-energy white */ |
51 |
|
float mbxyY[24][3] = { |
52 |
< |
{0.462, 0.3769, 0.0932961}, /* DarkSkin */ |
53 |
< |
{0.4108, 0.3542, 0.410348}, /* LightSkin */ |
54 |
< |
{0.2626, 0.267, 0.181554}, /* BlueSky */ |
55 |
< |
{0.36, 0.4689, 0.108447}, /* Foliage */ |
56 |
< |
{0.2977, 0.2602, 0.248407}, /* BlueFlower */ |
57 |
< |
{0.2719, 0.3485, 0.401156}, /* BluishGreen */ |
58 |
< |
{0.52, 0.4197, 0.357899}, /* Orange */ |
59 |
< |
{0.229, 0.1866, 0.103911}, /* PurplishBlue */ |
60 |
< |
{0.4909, 0.3262, 0.242615}, /* ModerateRed */ |
61 |
< |
{0.3361, 0.2249, 0.0600102}, /* Purple */ |
62 |
< |
{0.3855, 0.4874, 0.42963}, /* YellowGreen */ |
63 |
< |
{0.4853, 0.4457, 0.476343}, /* OrangeYellow */ |
64 |
< |
{0.2026, 0.1369, 0.0529249}, /* Blue */ |
65 |
< |
{0.3007, 0.4822, 0.221226}, /* Green */ |
66 |
< |
{0.5805, 0.3238, 0.162167}, /* Red */ |
67 |
< |
{0.4617, 0.472, 0.64909}, /* Yellow */ |
68 |
< |
{0.4178, 0.2625, 0.233662}, /* Magenta */ |
69 |
< |
{0.2038, 0.2508, 0.167275}, /* Cyan */ |
70 |
< |
{0.3358, 0.337, 0.916877}, /* White */ |
71 |
< |
{0.3338, 0.3348, 0.604678}, /* Neutral.8 */ |
72 |
< |
{0.3333, 0.3349, 0.364566}, /* Neutral.65 */ |
73 |
< |
{0.3353, 0.3359, 0.200238}, /* Neutral.5 */ |
74 |
< |
{0.3363, 0.336, 0.0878721}, /* Neutral.35 */ |
75 |
< |
{0.3346, 0.3349, 0.0308383} /* Black */ |
52 |
> |
{0.421236, 0.361196, 0.103392}, /* DarkSkin */ |
53 |
> |
{0.40868, 0.358157, 0.352867}, /* LightSkin */ |
54 |
> |
{0.265063, 0.271424, 0.185124}, /* BlueSky */ |
55 |
> |
{0.362851, 0.43055, 0.132625}, /* Foliage */ |
56 |
> |
{0.28888, 0.260851, 0.233138}, /* BlueFlower */ |
57 |
> |
{0.277642, 0.365326, 0.416443}, /* BluishGreen */ |
58 |
> |
{0.524965, 0.40068, 0.312039}, /* Orange */ |
59 |
> |
{0.225018, 0.190392, 0.114999}, /* PurplishBlue */ |
60 |
> |
{0.487199, 0.315372, 0.198616}, /* ModerateRed */ |
61 |
> |
{0.314245, 0.227231, 0.0646047}, /* Purple */ |
62 |
> |
{0.396202, 0.489732, 0.440724}, /* YellowGreen */ |
63 |
> |
{0.493297, 0.435299, 0.43444}, /* OrangeYellow */ |
64 |
> |
{0.198191, 0.149265, 0.0588122}, /* Blue */ |
65 |
> |
{0.322838, 0.487601, 0.229258}, /* Green */ |
66 |
> |
{0.561833, 0.321165, 0.126978}, /* Red */ |
67 |
> |
{0.468113, 0.467021, 0.605289}, /* Yellow */ |
68 |
> |
{0.397128, 0.248535, 0.201761}, /* Magenta */ |
69 |
> |
{0.209552, 0.276256, 0.190917}, /* Cyan */ |
70 |
> |
{0.337219, 0.339042, 0.912482}, /* White */ |
71 |
> |
{0.333283, 0.335077, 0.588297}, /* Neutral.8 */ |
72 |
> |
{0.332747, 0.334371, 0.3594}, /* Neutral.65 */ |
73 |
> |
{0.331925, 0.334202, 0.19114}, /* Neutral.5 */ |
74 |
> |
{0.330408, 0.332615, 0.0892964}, /* Neutral.35 */ |
75 |
> |
{0.331841, 0.331405, 0.0319541}, /* Black */ |
76 |
|
}; |
77 |
|
|
78 |
|
COLOR mbRGB[24]; /* MacBeth RGB values */ |
98 |
|
#define RG_ORIG 02 /* original color region */ |
99 |
|
#define RG_CORR 04 /* corrected color region */ |
100 |
|
|
101 |
+ |
#ifndef DISPCOM |
102 |
+ |
#define DISPCOM "ximage -op \"%s\"" |
103 |
+ |
#endif |
104 |
+ |
|
105 |
+ |
int scanning = 1; /* scanned input (or recorded output)? */ |
106 |
+ |
double irrad = 1.0; /* irradiance multiplication factor */ |
107 |
+ |
int rawmap = 0; /* put out raw color mapping? */ |
108 |
+ |
|
109 |
|
int xmax, ymax; /* input image dimensions */ |
110 |
|
int bounds[4][2]; /* image coordinates of chart corners */ |
111 |
|
double imgxfm[3][3]; /* coordinate transformation matrix */ |
115 |
|
long gmtflags = 0; /* flags of out-of-gamut colors */ |
116 |
|
|
117 |
|
COLOR bramp[NMBNEU][2]; /* brightness ramp (per primary) */ |
118 |
< |
double solmat[3][3]; /* color mapping matrix */ |
118 |
> |
COLORMAT solmat; /* color mapping matrix */ |
119 |
> |
COLOR colmin, colmax; /* gamut limits */ |
120 |
|
|
121 |
+ |
WARP3D *wcor = NULL; /* color space warp */ |
122 |
+ |
|
123 |
|
FILE *debugfp = NULL; /* debug output picture */ |
124 |
|
char *progname; |
125 |
|
|
126 |
< |
extern char *malloc(); |
126 |
> |
static void init(void); |
127 |
> |
static int chartndx(int x, int y, int *np); |
128 |
> |
static void getpicture(void); |
129 |
> |
static void getcolors(void); |
130 |
> |
static void bresp(COLOR y, COLOR x); |
131 |
> |
static void compute(void); |
132 |
> |
static void putmapping(void); |
133 |
> |
static void compsoln(COLOR cin[], COLOR cout[], int n); |
134 |
> |
static void cwarp(void); |
135 |
> |
static int cvtcolor(COLOR cout, COLOR cin); |
136 |
> |
static int cresp(COLOR cout, COLOR cin); |
137 |
> |
static void xyY2RGB(COLOR rgbout, float xyYin[3]); |
138 |
> |
static void picdebug(void); |
139 |
> |
static void clrdebug(void); |
140 |
> |
static void getpos(char *name, int bnds[2], FILE *fp); |
141 |
> |
static void pickchartpos(char *pfn); |
142 |
|
|
143 |
|
|
144 |
< |
main(argc, argv) |
145 |
< |
int argc; |
146 |
< |
char **argv; |
144 |
> |
int |
145 |
> |
main( |
146 |
> |
int argc, |
147 |
> |
char **argv |
148 |
> |
) |
149 |
|
{ |
119 |
– |
int inpispic = 1; |
150 |
|
int i; |
151 |
|
|
152 |
|
progname = argv[0]; |
160 |
|
perror(argv[i]); |
161 |
|
exit(1); |
162 |
|
} |
163 |
< |
#ifdef MSDOS |
134 |
< |
setmode(fileno(debugfp), O_BINARY); |
135 |
< |
#endif |
163 |
> |
SET_FILE_BINARY(debugfp); |
164 |
|
newheader("RADIANCE", debugfp); /* start */ |
165 |
|
printargs(argc, argv, debugfp); /* header */ |
166 |
|
break; |
175 |
|
bounds[2][1] = atoi(argv[++i]); |
176 |
|
bounds[3][0] = atoi(argv[++i]); |
177 |
|
bounds[3][1] = atoi(argv[++i]); |
178 |
< |
inpispic = 2; |
178 |
> |
scanning = 2; |
179 |
|
break; |
180 |
+ |
case 'P': /* pick position */ |
181 |
+ |
scanning = 3; |
182 |
+ |
break; |
183 |
+ |
case 'i': /* irradiance factor */ |
184 |
+ |
i++; |
185 |
+ |
if (badarg(argc-i, argv+i, "f")) |
186 |
+ |
goto userr; |
187 |
+ |
irrad = atof(argv[i]); |
188 |
+ |
break; |
189 |
+ |
case 'm': /* raw map output */ |
190 |
+ |
rawmap = 1; |
191 |
+ |
break; |
192 |
|
case 'c': /* color input */ |
193 |
< |
inpispic = 0; |
193 |
> |
scanning = 0; |
194 |
|
break; |
195 |
|
default: |
196 |
|
goto userr; |
197 |
|
} |
198 |
|
/* open files */ |
199 |
|
if (i < argc && freopen(argv[i], "r", stdin) == NULL) { |
200 |
< |
perror(argv[1]); |
200 |
> |
perror(argv[i]); |
201 |
|
exit(1); |
202 |
|
} |
203 |
|
if (i+1 < argc && freopen(argv[i+1], "w", stdout) == NULL) { |
204 |
< |
perror(argv[2]); |
204 |
> |
perror(argv[i+1]); |
205 |
|
exit(1); |
206 |
|
} |
207 |
< |
if (inpispic) { /* load input picture header */ |
208 |
< |
#ifdef MSDOS |
169 |
< |
setmode(fileno(stdin), O_BINARY); |
170 |
< |
#endif |
207 |
> |
if (scanning) { /* load input picture header */ |
208 |
> |
SET_FILE_BINARY(stdin); |
209 |
|
if (checkheader(stdin, COLRFMT, NULL) < 0 || |
210 |
|
fgetresolu(&xmax, &ymax, stdin) < 0) { |
211 |
|
fprintf(stderr, "%s: bad input picture\n", progname); |
212 |
|
exit(1); |
213 |
|
} |
214 |
+ |
if (scanning == 3) { |
215 |
+ |
if (i >= argc) |
216 |
+ |
goto userr; |
217 |
+ |
pickchartpos(argv[i]); |
218 |
+ |
scanning = 2; |
219 |
+ |
} |
220 |
|
} else { /* else set default xmax and ymax */ |
221 |
|
xmax = 512; |
222 |
|
ymax = 2*512/3; |
223 |
|
} |
224 |
< |
if (inpispic != 2) { /* use default boundaries */ |
224 |
> |
if (scanning != 2) { /* use default boundaries */ |
225 |
|
bounds[0][0] = bounds[2][0] = .029*xmax + .5; |
226 |
|
bounds[0][1] = bounds[1][1] = .956*ymax + .5; |
227 |
|
bounds[1][0] = bounds[3][0] = .971*xmax + .5; |
228 |
|
bounds[2][1] = bounds[3][1] = .056*ymax + .5; |
229 |
|
} |
230 |
|
init(); /* initialize */ |
231 |
< |
if (inpispic) /* get picture colors */ |
231 |
> |
if (scanning) /* get picture colors */ |
232 |
|
getpicture(); |
233 |
|
else |
234 |
|
getcolors(); |
235 |
|
compute(); /* compute color mapping */ |
236 |
< |
/* print comment */ |
237 |
< |
printf("{ Color correction file computed by:\n\t"); |
238 |
< |
printargs(argc, argv, stdout); |
239 |
< |
printf("}\n"); |
240 |
< |
putmapping(); /* put out color mapping */ |
241 |
< |
if (debugfp != NULL) /* put out debug picture */ |
242 |
< |
if (inpispic) |
236 |
> |
if (rawmap) { /* print out raw correspondence */ |
237 |
> |
register int j; |
238 |
> |
|
239 |
> |
printf("# Color correspondence produced by:\n#\t\t"); |
240 |
> |
printargs(argc, argv, stdout); |
241 |
> |
printf("#\tUsage: pcwarp %s uncorrected.hdr > corrected.hdr\n", |
242 |
> |
i+1 < argc ? argv[i+1] : "{this_file}"); |
243 |
> |
printf("#\t Or: pcond [options] -m %s orig.hdr > output.hdr\n", |
244 |
> |
i+1 < argc ? argv[i+1] : "{this_file}"); |
245 |
> |
for (j = 0; j < 24; j++) |
246 |
> |
printf("%f %f %f %f %f %f\n", |
247 |
> |
colval(inpRGB[j],RED), colval(inpRGB[j],GRN), |
248 |
> |
colval(inpRGB[j],BLU), colval(mbRGB[j],RED), |
249 |
> |
colval(mbRGB[j],GRN), colval(mbRGB[j],BLU)); |
250 |
> |
if (scanning && debugfp != NULL) |
251 |
> |
cwarp(); /* color warp for debugging */ |
252 |
> |
} else { /* print color mapping */ |
253 |
> |
/* print header */ |
254 |
> |
printf("{\n\tColor correction file computed by:\n\t\t"); |
255 |
> |
printargs(argc, argv, stdout); |
256 |
> |
printf("\n\tUsage: pcomb -f %s uncorrected.hdr > corrected.hdr\n", |
257 |
> |
i+1 < argc ? argv[i+1] : "{this_file}"); |
258 |
> |
if (!scanning) |
259 |
> |
printf("\t Or: pcond [options] -f %s orig.hdr > output.hdr\n", |
260 |
> |
i+1 < argc ? argv[i+1] : "{this_file}"); |
261 |
> |
printf("}\n"); |
262 |
> |
putmapping(); /* put out color mapping */ |
263 |
> |
} |
264 |
> |
if (debugfp != NULL) { /* put out debug picture */ |
265 |
> |
if (scanning) |
266 |
|
picdebug(); |
267 |
|
else |
268 |
|
clrdebug(); |
269 |
+ |
} |
270 |
|
exit(0); |
271 |
|
userr: |
272 |
|
fprintf(stderr, |
273 |
< |
"Usage: %s [-d dbg.pic][-p xul yul xur yur xll yll xlr ylr] input.pic [output.cal]\n", |
273 |
> |
"Usage: %s [-d dbg.hdr][-P | -p xul yul xur yur xll yll xlr ylr][-i irrad][-m] input.hdr [output.{cal|cwp}]\n", |
274 |
|
progname); |
275 |
< |
fprintf(stderr, " or: %s [-d dbg.pic] -c [xyY.dat [output.cal]]\n", |
275 |
> |
fprintf(stderr, " or: %s [-d dbg.hdr][-i irrad][-m] -c [xyY.dat [output.{cal|cwp}]]\n", |
276 |
|
progname); |
277 |
|
exit(1); |
278 |
+ |
return 1; /* pro forma return */ |
279 |
|
} |
280 |
|
|
281 |
|
|
282 |
< |
init() /* initialize */ |
282 |
> |
static void |
283 |
> |
init(void) /* initialize */ |
284 |
|
{ |
285 |
|
double quad[4][2]; |
286 |
|
register int i; |
299 |
|
exit(1); |
300 |
|
} |
301 |
|
/* map MacBeth colors to RGB space */ |
302 |
< |
for (i = 0; i < 24; i++) |
302 |
> |
for (i = 0; i < 24; i++) { |
303 |
|
xyY2RGB(mbRGB[i], mbxyY[i]); |
304 |
+ |
scalecolor(mbRGB[i], irrad); |
305 |
+ |
} |
306 |
|
} |
307 |
|
|
308 |
|
|
309 |
< |
int |
310 |
< |
chartndx(x, y, np) /* find color number for position */ |
311 |
< |
int x, y; |
312 |
< |
int *np; |
309 |
> |
static int |
310 |
> |
chartndx( /* find color number for position */ |
311 |
> |
int x, |
312 |
> |
int y, |
313 |
> |
int *np |
314 |
> |
) |
315 |
|
{ |
316 |
|
double ipos[3], cpos[3]; |
317 |
|
int ix, iy; |
340 |
|
} |
341 |
|
|
342 |
|
|
343 |
< |
getpicture() /* load in picture colors */ |
343 |
> |
static void |
344 |
> |
getpicture(void) /* load in picture colors */ |
345 |
|
{ |
346 |
|
COLR *scanln; |
347 |
|
COLOR pval; |
379 |
|
scalecolor(inpRGB[i], d); |
380 |
|
inpflags |= 1L<<i; |
381 |
|
} |
382 |
< |
free((char *)scanln); |
382 |
> |
free((void *)scanln); |
383 |
|
} |
384 |
|
|
385 |
|
|
386 |
< |
getcolors() /* get xyY colors from standard input */ |
386 |
> |
static void |
387 |
> |
getcolors(void) /* get xyY colors from standard input */ |
388 |
|
{ |
389 |
|
int gotwhite = 0; |
390 |
|
COLOR whiteclr; |
392 |
|
float xyYin[3]; |
393 |
|
|
394 |
|
while (fgetval(stdin, 'i', &n) == 1) { /* read colors */ |
395 |
< |
if (n < 0 | n > 24 || |
395 |
> |
if ((n < 0) | (n > 24) || |
396 |
|
fgetval(stdin, 'f', &xyYin[0]) != 1 || |
397 |
|
fgetval(stdin, 'f', &xyYin[1]) != 1 || |
398 |
|
fgetval(stdin, 'f', &xyYin[2]) != 1 || |
399 |
< |
xyYin[0] < 0. | xyYin[0] > 1. | |
400 |
< |
xyYin[1] < 0. | xyYin[1] > 1.) { |
399 |
> |
(xyYin[0] < 0.) | (xyYin[1] < 0.) || |
400 |
> |
xyYin[0] + xyYin[1] > 1.) { |
401 |
|
fprintf(stderr, "%s: bad color input data\n", |
402 |
|
progname); |
403 |
|
exit(1); |
432 |
|
} |
433 |
|
|
434 |
|
|
435 |
< |
bresp(y, x) /* piecewise linear interpolation of primaries */ |
436 |
< |
COLOR y, x; |
435 |
> |
static void |
436 |
> |
bresp( /* piecewise linear interpolation of primaries */ |
437 |
> |
COLOR y, |
438 |
> |
COLOR x |
439 |
> |
) |
440 |
|
{ |
441 |
|
register int i, n; |
442 |
|
|
453 |
|
} |
454 |
|
|
455 |
|
|
456 |
< |
compute() /* compute color mapping */ |
456 |
> |
static void |
457 |
> |
compute(void) /* compute color mapping */ |
458 |
|
{ |
459 |
|
COLOR clrin[24], clrout[24]; |
460 |
|
long cflags; |
461 |
|
COLOR ctmp; |
462 |
< |
register int i, j, n; |
462 |
> |
register int i, n; |
463 |
|
/* did we get what we need? */ |
464 |
|
if ((inpflags & REQFLGS) != REQFLGS) { |
465 |
|
fprintf(stderr, "%s: missing required input colors\n", |
469 |
|
/* compute piecewise luminance curve */ |
470 |
|
for (i = 0; i < NMBNEU; i++) { |
471 |
|
copycolor(bramp[i][0], inpRGB[mbneu[i]]); |
472 |
+ |
for (n = i ? 3 : 0; n--; ) |
473 |
+ |
if (colval(bramp[i][0],n) <= |
474 |
+ |
colval(bramp[i-1][0],n)+1e-7) { |
475 |
+ |
fprintf(stderr, |
476 |
+ |
"%s: non-increasing neutral patch\n", progname); |
477 |
+ |
exit(1); |
478 |
+ |
} |
479 |
|
copycolor(bramp[i][1], mbRGB[mbneu[i]]); |
480 |
|
} |
481 |
+ |
/* compute color space gamut */ |
482 |
+ |
if (scanning) { |
483 |
+ |
copycolor(colmin, cblack); |
484 |
+ |
copycolor(colmax, cwhite); |
485 |
+ |
scalecolor(colmax, irrad); |
486 |
+ |
} else |
487 |
+ |
for (i = 0; i < 3; i++) { |
488 |
+ |
colval(colmin,i) = colval(bramp[0][0],i) - |
489 |
+ |
colval(bramp[0][1],i) * |
490 |
+ |
(colval(bramp[1][0],i)-colval(bramp[0][0],i)) / |
491 |
+ |
(colval(bramp[1][1],i)-colval(bramp[1][0],i)); |
492 |
+ |
colval(colmax,i) = colval(bramp[NMBNEU-2][0],i) + |
493 |
+ |
(1.-colval(bramp[NMBNEU-2][1],i)) * |
494 |
+ |
(colval(bramp[NMBNEU-1][0],i) - |
495 |
+ |
colval(bramp[NMBNEU-2][0],i)) / |
496 |
+ |
(colval(bramp[NMBNEU-1][1],i) - |
497 |
+ |
colval(bramp[NMBNEU-2][1],i)); |
498 |
+ |
} |
499 |
|
/* compute color mapping */ |
500 |
|
do { |
501 |
|
cflags = inpflags & ~gmtflags; |
507 |
|
n++; |
508 |
|
} |
509 |
|
compsoln(clrin, clrout, n); |
510 |
< |
/* check out-of-gamut colors */ |
511 |
< |
for (i = 0; i < 24; i++) |
512 |
< |
if (cflags & 1L<<i) { |
513 |
< |
cresp(ctmp, mbRGB[i]); |
409 |
< |
for (j = 0; j < 3; j++) |
410 |
< |
if (colval(ctmp,j) <= 0. || |
411 |
< |
colval(ctmp,j) >= 1.) { |
412 |
< |
gmtflags |= 1L<<i; |
413 |
< |
break; |
414 |
< |
} |
415 |
< |
} |
510 |
> |
if (irrad > 0.99 && irrad < 1.01) /* check gamut */ |
511 |
> |
for (i = 0; i < 24; i++) |
512 |
> |
if (cflags & 1L<<i && cvtcolor(ctmp, mbRGB[i])) |
513 |
> |
gmtflags |= 1L<<i; |
514 |
|
} while (cflags & gmtflags); |
515 |
|
if (gmtflags & MODFLGS) |
516 |
|
fprintf(stderr, |
519 |
|
} |
520 |
|
|
521 |
|
|
522 |
< |
putmapping() /* put out color mapping for pcomb -f */ |
522 |
> |
static void |
523 |
> |
putmapping(void) /* put out color mapping */ |
524 |
|
{ |
525 |
|
static char cchar[3] = {'r', 'g', 'b'}; |
526 |
|
register int i, j; |
534 |
|
for (i = 0; i < NMBNEU; i++) |
535 |
|
printf(",%g", colval(bramp[i][1],j)); |
536 |
|
printf(");\n"); |
438 |
– |
printf("%c = %ci(1);\n", cchar[j], cchar[j]); |
537 |
|
printf("%cfi(n) = if(n-%g, %d, if(%cxa(n+1)-%c, n, %cfi(n+1)));\n", |
538 |
|
cchar[j], NMBNEU-1.5, NMBNEU-1, cchar[j], |
539 |
|
cchar[j], cchar[j]); |
540 |
|
printf("%cndx = %cfi(1);\n", cchar[j], cchar[j]); |
541 |
< |
printf("%cn = ((%cxa(%cndx+1)-%c)*%cya(%cndx) + ", |
542 |
< |
cchar[j], cchar[j], cchar[j], |
543 |
< |
cchar[j], cchar[j], cchar[j]); |
541 |
> |
printf("%c%c = ((%cxa(%cndx+1)-%c)*%cya(%cndx) + ", |
542 |
> |
cchar[j], scanning?'n':'o', cchar[j], |
543 |
> |
cchar[j], cchar[j], cchar[j], cchar[j]); |
544 |
|
printf("(%c-%cxa(%cndx))*%cya(%cndx+1)) /\n", |
545 |
|
cchar[j], cchar[j], cchar[j], |
546 |
|
cchar[j], cchar[j]); |
548 |
|
cchar[j], cchar[j], cchar[j], cchar[j]); |
549 |
|
} |
550 |
|
/* print color mapping */ |
551 |
< |
printf("ro = %g*rn + %g*gn + %g*bn ;\n", |
552 |
< |
solmat[0][0], solmat[0][1], solmat[0][2]); |
553 |
< |
printf("go = %g*rn + %g*gn + %g*bn ;\n", |
554 |
< |
solmat[1][0], solmat[1][1], solmat[1][2]); |
555 |
< |
printf("bo = %g*rn + %g*gn + %g*bn ;\n", |
556 |
< |
solmat[2][0], solmat[2][1], solmat[2][2]); |
551 |
> |
if (scanning) { |
552 |
> |
printf("r = ri(1); g = gi(1); b = bi(1);\n"); |
553 |
> |
printf("ro = %g*rn + %g*gn + %g*bn ;\n", |
554 |
> |
solmat[0][0], solmat[0][1], solmat[0][2]); |
555 |
> |
printf("go = %g*rn + %g*gn + %g*bn ;\n", |
556 |
> |
solmat[1][0], solmat[1][1], solmat[1][2]); |
557 |
> |
printf("bo = %g*rn + %g*gn + %g*bn ;\n", |
558 |
> |
solmat[2][0], solmat[2][1], solmat[2][2]); |
559 |
> |
} else { |
560 |
> |
printf("r1 = ri(1); g1 = gi(1); b1 = bi(1);\n"); |
561 |
> |
printf("r = %g*r1 + %g*g1 + %g*b1 ;\n", |
562 |
> |
solmat[0][0], solmat[0][1], solmat[0][2]); |
563 |
> |
printf("g = %g*r1 + %g*g1 + %g*b1 ;\n", |
564 |
> |
solmat[1][0], solmat[1][1], solmat[1][2]); |
565 |
> |
printf("b = %g*r1 + %g*g1 + %g*b1 ;\n", |
566 |
> |
solmat[2][0], solmat[2][1], solmat[2][2]); |
567 |
> |
} |
568 |
|
} |
569 |
|
|
570 |
|
|
571 |
< |
compsoln(cin, cout, n) /* solve 3xN system using least-squares */ |
572 |
< |
COLOR cin[], cout[]; |
573 |
< |
int n; |
571 |
> |
static void |
572 |
> |
compsoln( /* solve 3xN system using least-squares */ |
573 |
> |
COLOR cin[], |
574 |
> |
COLOR cout[], |
575 |
> |
int n |
576 |
> |
) |
577 |
|
{ |
578 |
|
extern double mx3d_adjoint(), fabs(); |
579 |
|
double mat[3][3], invmat[3][3]; |
631 |
|
} |
632 |
|
|
633 |
|
|
634 |
< |
cvtcolor(cout, cin) /* convert color according to our mapping */ |
635 |
< |
COLOR cout, cin; |
634 |
> |
static void |
635 |
> |
cwarp(void) /* compute color warp map */ |
636 |
|
{ |
637 |
< |
COLOR ctmp; |
637 |
> |
register int i; |
638 |
|
|
639 |
< |
bresp(ctmp, cin); |
640 |
< |
cresp(cout, ctmp); |
641 |
< |
if (colval(cout,RED) < 0.) |
642 |
< |
colval(cout,RED) = 0.; |
643 |
< |
if (colval(cout,GRN) < 0.) |
644 |
< |
colval(cout,GRN) = 0.; |
645 |
< |
if (colval(cout,BLU) < 0.) |
646 |
< |
colval(cout,BLU) = 0.; |
639 |
> |
if ((wcor = new3dw(W3EXACT)) == NULL) |
640 |
> |
goto memerr; |
641 |
> |
for (i = 0; i < 24; i++) |
642 |
> |
if (!add3dpt(wcor, inpRGB[i], mbRGB[i])) |
643 |
> |
goto memerr; |
644 |
> |
return; |
645 |
> |
memerr: |
646 |
> |
perror(progname); |
647 |
> |
exit(1); |
648 |
|
} |
649 |
|
|
650 |
|
|
651 |
< |
cresp(cout, cin) /* transform color according to matrix */ |
652 |
< |
COLOR cout, cin; |
651 |
> |
static int |
652 |
> |
cvtcolor( /* convert color according to our mapping */ |
653 |
> |
COLOR cout, |
654 |
> |
COLOR cin |
655 |
> |
) |
656 |
|
{ |
657 |
< |
double r, g, b; |
657 |
> |
COLOR ctmp; |
658 |
> |
int clipped; |
659 |
|
|
660 |
< |
r = colval(cin,0)*solmat[0][0] + colval(cin,1)*solmat[0][1] |
661 |
< |
+ colval(cin,2)*solmat[0][2]; |
662 |
< |
g = colval(cin,0)*solmat[1][0] + colval(cin,1)*solmat[1][1] |
663 |
< |
+ colval(cin,2)*solmat[1][2]; |
664 |
< |
b = colval(cin,0)*solmat[2][0] + colval(cin,1)*solmat[2][1] |
665 |
< |
+ colval(cin,2)*solmat[2][2]; |
666 |
< |
setcolor(cout, r, g, b); |
660 |
> |
if (wcor != NULL) { |
661 |
> |
clipped = warp3d(cout, cin, wcor); |
662 |
> |
clipped |= clipgamut(cout,bright(cout),CGAMUT,colmin,colmax); |
663 |
> |
} else if (scanning) { |
664 |
> |
bresp(ctmp, cin); |
665 |
> |
clipped = cresp(cout, ctmp); |
666 |
> |
} else { |
667 |
> |
clipped = cresp(ctmp, cin); |
668 |
> |
bresp(cout, ctmp); |
669 |
> |
} |
670 |
> |
return(clipped); |
671 |
|
} |
672 |
|
|
673 |
|
|
674 |
< |
xyY2RGB(rgbout, xyYin) /* convert xyY to RGB */ |
675 |
< |
COLOR rgbout; |
676 |
< |
register float xyYin[3]; |
674 |
> |
static int |
675 |
> |
cresp( /* transform color according to matrix */ |
676 |
> |
COLOR cout, |
677 |
> |
COLOR cin |
678 |
> |
) |
679 |
|
{ |
680 |
+ |
colortrans(cout, solmat, cin); |
681 |
+ |
return(clipgamut(cout, bright(cout), CGAMUT, colmin, colmax)); |
682 |
+ |
} |
683 |
+ |
|
684 |
+ |
|
685 |
+ |
static void |
686 |
+ |
xyY2RGB( /* convert xyY to RGB */ |
687 |
+ |
COLOR rgbout, |
688 |
+ |
register float xyYin[3] |
689 |
+ |
) |
690 |
+ |
{ |
691 |
|
COLOR ctmp; |
692 |
|
double d; |
693 |
|
|
695 |
|
ctmp[0] = xyYin[0] * d; |
696 |
|
ctmp[1] = xyYin[2]; |
697 |
|
ctmp[2] = (1. - xyYin[0] - xyYin[1]) * d; |
698 |
< |
cie_rgb(rgbout, ctmp); |
698 |
> |
/* allow negative values */ |
699 |
> |
colortrans(rgbout, xyz2rgbmat, ctmp); |
700 |
|
} |
701 |
|
|
702 |
|
|
703 |
< |
picdebug() /* put out debugging picture */ |
703 |
> |
static void |
704 |
> |
picdebug(void) /* put out debugging picture */ |
705 |
|
{ |
706 |
|
static COLOR blkcol = BLKCOLOR; |
707 |
|
COLOR *scan; |
734 |
|
for (x = 0; x < xmax; x++) { |
735 |
|
rg = chartndx(x, y, &i); |
736 |
|
if (rg == RG_CENT) { |
737 |
< |
if (!(1L<<i & gmtflags) || (x+y)&07) |
737 |
> |
if (!(1L<<i & gmtflags) || (x+y)&07) { |
738 |
|
copycolor(scan[x], mbRGB[i]); |
739 |
< |
else |
739 |
> |
clipgamut(scan[x], bright(scan[x]), |
740 |
> |
CGAMUT, colmin, colmax); |
741 |
> |
} else |
742 |
|
copycolor(scan[x], blkcol); |
743 |
|
} else if (rg == RG_CORR) |
744 |
|
cvtcolor(scan[x], scan[x]); |
753 |
|
} |
754 |
|
/* clean up */ |
755 |
|
fclose(debugfp); |
756 |
< |
free((char *)scan); |
756 |
> |
free((void *)scan); |
757 |
|
} |
758 |
|
|
759 |
|
|
760 |
< |
clrdebug() /* put out debug picture from color input */ |
760 |
> |
static void |
761 |
> |
clrdebug(void) /* put out debug picture from color input */ |
762 |
|
{ |
763 |
|
static COLR blkclr = BLKCOLR; |
764 |
|
COLR mbclr[24], cvclr[24], orclr[24]; |
765 |
|
COLR *scan; |
766 |
< |
COLOR ctmp; |
766 |
> |
COLOR ctmp, ct2; |
767 |
|
int y, i; |
768 |
|
register int x, rg; |
769 |
|
/* convert colors */ |
770 |
|
for (i = 0; i < 24; i++) { |
771 |
< |
setcolr(mbclr[i], colval(mbRGB[i],RED), |
772 |
< |
colval(mbRGB[i],GRN), colval(mbRGB[i],BLU)); |
771 |
> |
copycolor(ctmp, mbRGB[i]); |
772 |
> |
clipgamut(ctmp, bright(ctmp), CGAMUT, cblack, cwhite); |
773 |
> |
setcolr(mbclr[i], colval(ctmp,RED), |
774 |
> |
colval(ctmp,GRN), colval(ctmp,BLU)); |
775 |
|
if (inpflags & 1L<<i) { |
776 |
< |
setcolr(orclr[i], colval(inpRGB[i],RED), |
777 |
< |
colval(inpRGB[i],GRN), |
778 |
< |
colval(inpRGB[i],BLU)); |
638 |
< |
cvtcolor(ctmp, inpRGB[i]); |
639 |
< |
setcolr(cvclr[i], colval(ctmp,RED), |
776 |
> |
copycolor(ctmp, inpRGB[i]); |
777 |
> |
clipgamut(ctmp, bright(ctmp), CGAMUT, cblack, cwhite); |
778 |
> |
setcolr(orclr[i], colval(ctmp,RED), |
779 |
|
colval(ctmp,GRN), colval(ctmp,BLU)); |
780 |
+ |
if (rawmap) |
781 |
+ |
copycolr(cvclr[i], mbclr[i]); |
782 |
+ |
else { |
783 |
+ |
bresp(ctmp, inpRGB[i]); |
784 |
+ |
colortrans(ct2, solmat, ctmp); |
785 |
+ |
clipgamut(ct2, bright(ct2), CGAMUT, |
786 |
+ |
cblack, cwhite); |
787 |
+ |
setcolr(cvclr[i], colval(ct2,RED), |
788 |
+ |
colval(ct2,GRN), |
789 |
+ |
colval(ct2,BLU)); |
790 |
+ |
} |
791 |
|
} |
792 |
|
} |
793 |
|
/* allocate scanline */ |
824 |
|
} |
825 |
|
/* clean up */ |
826 |
|
fclose(debugfp); |
827 |
< |
free((char *)scan); |
827 |
> |
free((void *)scan); |
828 |
> |
} |
829 |
> |
|
830 |
> |
|
831 |
> |
static void |
832 |
> |
getpos( /* get boundary position */ |
833 |
> |
char *name, |
834 |
> |
int bnds[2], |
835 |
> |
FILE *fp |
836 |
> |
) |
837 |
> |
{ |
838 |
> |
char buf[64]; |
839 |
> |
|
840 |
> |
fprintf(stderr, "\tSelect corner: %s\n", name); |
841 |
> |
if (fgets(buf, sizeof(buf), fp) == NULL || |
842 |
> |
sscanf(buf, "%d %d", &bnds[0], &bnds[1]) != 2) { |
843 |
> |
fprintf(stderr, "%s: read error from display process\n", |
844 |
> |
progname); |
845 |
> |
exit(1); |
846 |
> |
} |
847 |
> |
} |
848 |
> |
|
849 |
> |
|
850 |
> |
static void |
851 |
> |
pickchartpos( /* display picture and pick chart location */ |
852 |
> |
char *pfn |
853 |
> |
) |
854 |
> |
{ |
855 |
> |
char combuf[PATH_MAX]; |
856 |
> |
FILE *pfp; |
857 |
> |
|
858 |
> |
sprintf(combuf, DISPCOM, pfn); |
859 |
> |
if ((pfp = popen(combuf, "r")) == NULL) { |
860 |
> |
perror(combuf); |
861 |
> |
exit(1); |
862 |
> |
} |
863 |
> |
fputs("Use middle mouse button to select chart corners:\n", stderr); |
864 |
> |
getpos("upper left (dark skin)", bounds[0], pfp); |
865 |
> |
getpos("upper right (bluish green)", bounds[1], pfp); |
866 |
> |
getpos("lower left (white)", bounds[2], pfp); |
867 |
> |
getpos("lower right (black)", bounds[3], pfp); |
868 |
> |
fputs("Got it -- quit display program.\n", stderr); |
869 |
> |
pclose(pfp); |
870 |
|
} |