10 |
|
* Warping code depends on conformance of COLOR and W3VEC types. |
11 |
|
*/ |
12 |
|
|
13 |
– |
#include <stdio.h> |
13 |
|
#include <math.h> |
15 |
– |
#include <time.h> |
14 |
|
|
15 |
|
#include "platform.h" |
18 |
– |
#include "rtprocess.h" |
16 |
|
#include "rtio.h" |
17 |
|
#include "color.h" |
18 |
|
#include "resolu.h" |
45 |
|
#define Neutral5 21 |
46 |
|
#define Neutral35 22 |
47 |
|
#define Black 23 |
48 |
< |
/* computed from 5nm spectral measurements */ |
48 |
> |
/* computed from 10nm spectral measurements */ |
49 |
|
/* CIE 1931 2 degree obs, equal-energy white */ |
50 |
|
float mbxyY[24][3] = { |
51 |
< |
{0.462, 0.3769, 0.0932961}, /* DarkSkin */ |
52 |
< |
{0.4108, 0.3542, 0.410348}, /* LightSkin */ |
53 |
< |
{0.2626, 0.267, 0.181554}, /* BlueSky */ |
54 |
< |
{0.36, 0.4689, 0.108447}, /* Foliage */ |
55 |
< |
{0.2977, 0.2602, 0.248407}, /* BlueFlower */ |
56 |
< |
{0.2719, 0.3485, 0.401156}, /* BluishGreen */ |
57 |
< |
{0.52, 0.4197, 0.357899}, /* Orange */ |
58 |
< |
{0.229, 0.1866, 0.103911}, /* PurplishBlue */ |
59 |
< |
{0.4909, 0.3262, 0.242615}, /* ModerateRed */ |
60 |
< |
{0.3361, 0.2249, 0.0600102}, /* Purple */ |
61 |
< |
{0.3855, 0.4874, 0.42963}, /* YellowGreen */ |
62 |
< |
{0.4853, 0.4457, 0.476343}, /* OrangeYellow */ |
63 |
< |
{0.2026, 0.1369, 0.0529249}, /* Blue */ |
64 |
< |
{0.3007, 0.4822, 0.221226}, /* Green */ |
65 |
< |
{0.5805, 0.3238, 0.162167}, /* Red */ |
66 |
< |
{0.4617, 0.472, 0.64909}, /* Yellow */ |
67 |
< |
{0.4178, 0.2625, 0.233662}, /* Magenta */ |
68 |
< |
{0.2038, 0.2508, 0.167275}, /* Cyan */ |
69 |
< |
{0.3358, 0.337, 0.916877}, /* White */ |
70 |
< |
{0.3338, 0.3348, 0.604678}, /* Neutral.8 */ |
71 |
< |
{0.3333, 0.3349, 0.364566}, /* Neutral.65 */ |
72 |
< |
{0.3353, 0.3359, 0.200238}, /* Neutral.5 */ |
73 |
< |
{0.3363, 0.336, 0.0878721}, /* Neutral.35 */ |
74 |
< |
{0.3346, 0.3349, 0.0308383} /* Black */ |
51 |
> |
{0.421236, 0.361196, 0.103392}, /* DarkSkin */ |
52 |
> |
{0.40868, 0.358157, 0.352867}, /* LightSkin */ |
53 |
> |
{0.265063, 0.271424, 0.185124}, /* BlueSky */ |
54 |
> |
{0.362851, 0.43055, 0.132625}, /* Foliage */ |
55 |
> |
{0.28888, 0.260851, 0.233138}, /* BlueFlower */ |
56 |
> |
{0.277642, 0.365326, 0.416443}, /* BluishGreen */ |
57 |
> |
{0.524965, 0.40068, 0.312039}, /* Orange */ |
58 |
> |
{0.225018, 0.190392, 0.114999}, /* PurplishBlue */ |
59 |
> |
{0.487199, 0.315372, 0.198616}, /* ModerateRed */ |
60 |
> |
{0.314245, 0.227231, 0.0646047}, /* Purple */ |
61 |
> |
{0.396202, 0.489732, 0.440724}, /* YellowGreen */ |
62 |
> |
{0.493297, 0.435299, 0.43444}, /* OrangeYellow */ |
63 |
> |
{0.198191, 0.149265, 0.0588122}, /* Blue */ |
64 |
> |
{0.322838, 0.487601, 0.229258}, /* Green */ |
65 |
> |
{0.561833, 0.321165, 0.126978}, /* Red */ |
66 |
> |
{0.468113, 0.467021, 0.605289}, /* Yellow */ |
67 |
> |
{0.397128, 0.248535, 0.201761}, /* Magenta */ |
68 |
> |
{0.209552, 0.276256, 0.190917}, /* Cyan */ |
69 |
> |
{0.337219, 0.339042, 0.912482}, /* White */ |
70 |
> |
{0.333283, 0.335077, 0.588297}, /* Neutral.8 */ |
71 |
> |
{0.332747, 0.334371, 0.3594}, /* Neutral.65 */ |
72 |
> |
{0.331925, 0.334202, 0.19114}, /* Neutral.5 */ |
73 |
> |
{0.330408, 0.332615, 0.0892964}, /* Neutral.35 */ |
74 |
> |
{0.331841, 0.331405, 0.0319541}, /* Black */ |
75 |
|
}; |
76 |
|
|
77 |
|
COLOR mbRGB[24]; /* MacBeth RGB values */ |
98 |
|
#define RG_CORR 04 /* corrected color region */ |
99 |
|
|
100 |
|
#ifndef DISPCOM |
101 |
< |
#define DISPCOM "ximage -op \"%s\"" |
101 |
> |
#define DISPCOM "ximage -e auto -op \"%s\"" |
102 |
|
#endif |
103 |
|
|
104 |
|
int scanning = 1; /* scanned input (or recorded output)? */ |
120 |
|
WARP3D *wcor = NULL; /* color space warp */ |
121 |
|
|
122 |
|
FILE *debugfp = NULL; /* debug output picture */ |
126 |
– |
char *progname; |
123 |
|
|
124 |
|
static void init(void); |
125 |
|
static int chartndx(int x, int y, int *np); |
126 |
|
static void getpicture(void); |
127 |
|
static void getcolors(void); |
128 |
|
static void bresp(COLOR y, COLOR x); |
129 |
+ |
static void ibresp(COLOR y, COLOR x); |
130 |
|
static void compute(void); |
131 |
|
static void putmapping(void); |
132 |
|
static void compsoln(COLOR cin[], COLOR cout[], int n); |
148 |
|
{ |
149 |
|
int i; |
150 |
|
|
151 |
< |
progname = argv[0]; |
151 |
> |
fixargv0(argv[0]); /* sets global progname */ |
152 |
|
for (i = 1; i < argc && argv[i][0] == '-'; i++) |
153 |
|
switch (argv[i][1]) { |
154 |
|
case 'd': /* debug output */ |
233 |
|
getcolors(); |
234 |
|
compute(); /* compute color mapping */ |
235 |
|
if (rawmap) { /* print out raw correspondence */ |
236 |
< |
register int j; |
236 |
> |
int j; |
237 |
|
|
238 |
|
printf("# Color correspondence produced by:\n#\t\t"); |
239 |
|
printargs(argc, argv, stdout); |
282 |
|
init(void) /* initialize */ |
283 |
|
{ |
284 |
|
double quad[4][2]; |
285 |
< |
register int i; |
285 |
> |
int i; |
286 |
|
/* make coordinate transformation */ |
287 |
|
quad[0][0] = bounds[0][0]; |
288 |
|
quad[0][1] = bounds[0][1]; |
322 |
|
mx3d_transform(ipos, imgxfm, cpos); |
323 |
|
cpos[0] /= cpos[2]; |
324 |
|
cpos[1] /= cpos[2]; |
325 |
< |
if (cpos[0] < 0. || cpos[0] >= 6. || cpos[1] < 0. || cpos[1] >= 4.) |
325 |
> |
if ((cpos[0] < 0.) | (cpos[0] >= 6.) | (cpos[1] < 0.) | (cpos[1] >= 4.)) |
326 |
|
return(RG_BORD); |
327 |
|
ix = cpos[0]; |
328 |
|
iy = cpos[1]; |
329 |
|
fx = cpos[0] - ix; |
330 |
|
fy = cpos[1] - iy; |
331 |
|
*np = iy*6 + ix; |
332 |
< |
if (fx >= 0.35 && fx < 0.65 && fy >= 0.35 && fy < 0.65) |
332 |
> |
if ((fx >= 0.35) & (fx < 0.65) & (fy >= 0.35) & (fy < 0.65)) |
333 |
|
return(RG_CENT); |
334 |
< |
if (fx < 0.05 || fx >= 0.95 || fy < 0.05 || fy >= 0.95) |
334 |
> |
if ((fx < 0.05) | (fx >= 0.95) | (fy < 0.05) | (fy >= 0.95)) |
335 |
|
return(RG_BORD); |
336 |
|
if (fx >= 0.5) /* right side is corrected */ |
337 |
|
return(RG_CORR); |
347 |
|
int ccount[24]; |
348 |
|
double d; |
349 |
|
int y, i; |
350 |
< |
register int x; |
350 |
> |
int x; |
351 |
|
|
352 |
|
scanln = (COLR *)malloc(xmax*sizeof(COLR)); |
353 |
|
if (scanln == NULL) { |
433 |
|
|
434 |
|
static void |
435 |
|
bresp( /* piecewise linear interpolation of primaries */ |
436 |
< |
COLOR y, |
437 |
< |
COLOR x |
436 |
> |
COLOR y, /* y is linear output */ |
437 |
> |
COLOR x /* x is non-linear input */ |
438 |
|
) |
439 |
|
{ |
440 |
< |
register int i, n; |
440 |
> |
int i, n; |
441 |
|
|
442 |
|
for (i = 0; i < 3; i++) { |
443 |
|
for (n = 0; n < NMBNEU-2; n++) |
453 |
|
|
454 |
|
|
455 |
|
static void |
456 |
+ |
ibresp( /* inverse mapping (delinearization) */ |
457 |
+ |
COLOR x, /* x is non-linear output */ |
458 |
+ |
COLOR y /* y is linear input */ |
459 |
+ |
) |
460 |
+ |
{ |
461 |
+ |
int i, n; |
462 |
+ |
|
463 |
+ |
for (i = 0; i < 3; i++) { |
464 |
+ |
for (n = 0; n < NMBNEU-2; n++) |
465 |
+ |
if (colval(y,i) < colval(bramp[n+1][1],i)) |
466 |
+ |
break; |
467 |
+ |
colval(x,i) = ((colval(bramp[n+1][1],i) - colval(y,i)) * |
468 |
+ |
colval(bramp[n][0],i) + |
469 |
+ |
(colval(y,i) - colval(bramp[n][1],i)) * |
470 |
+ |
colval(bramp[n+1][0],i)) / |
471 |
+ |
(colval(bramp[n+1][1],i) - colval(bramp[n][1],i)); |
472 |
+ |
} |
473 |
+ |
} |
474 |
+ |
|
475 |
+ |
|
476 |
+ |
static void |
477 |
|
compute(void) /* compute color mapping */ |
478 |
|
{ |
479 |
|
COLOR clrin[24], clrout[24]; |
480 |
|
long cflags; |
481 |
|
COLOR ctmp; |
482 |
< |
register int i, n; |
482 |
> |
int i, n; |
483 |
|
/* did we get what we need? */ |
484 |
|
if ((inpflags & REQFLGS) != REQFLGS) { |
485 |
|
fprintf(stderr, "%s: missing required input colors\n", |
489 |
|
/* compute piecewise luminance curve */ |
490 |
|
for (i = 0; i < NMBNEU; i++) { |
491 |
|
copycolor(bramp[i][0], inpRGB[mbneu[i]]); |
492 |
< |
for (n = i ? 3 : 0; n--; ) |
492 |
> |
for (n = 3*(i>0); n--; ) |
493 |
|
if (colval(bramp[i][0],n) <= |
494 |
|
colval(bramp[i-1][0],n)+1e-7) { |
495 |
|
fprintf(stderr, |
499 |
|
copycolor(bramp[i][1], mbRGB[mbneu[i]]); |
500 |
|
} |
501 |
|
/* compute color space gamut */ |
502 |
< |
if (scanning) { |
503 |
< |
copycolor(colmin, cblack); |
504 |
< |
copycolor(colmax, cwhite); |
505 |
< |
scalecolor(colmax, irrad); |
506 |
< |
} else |
507 |
< |
for (i = 0; i < 3; i++) { |
508 |
< |
colval(colmin,i) = colval(bramp[0][0],i) - |
491 |
< |
colval(bramp[0][1],i) * |
492 |
< |
(colval(bramp[1][0],i)-colval(bramp[0][0],i)) / |
493 |
< |
(colval(bramp[1][1],i)-colval(bramp[1][0],i)); |
494 |
< |
colval(colmax,i) = colval(bramp[NMBNEU-2][0],i) + |
495 |
< |
(1.-colval(bramp[NMBNEU-2][1],i)) * |
496 |
< |
(colval(bramp[NMBNEU-1][0],i) - |
497 |
< |
colval(bramp[NMBNEU-2][0],i)) / |
498 |
< |
(colval(bramp[NMBNEU-1][1],i) - |
499 |
< |
colval(bramp[NMBNEU-2][1],i)); |
500 |
< |
} |
502 |
> |
copycolor(colmin, cblack); |
503 |
> |
copycolor(colmax, cwhite); |
504 |
> |
scalecolor(colmax, irrad); |
505 |
> |
if (!scanning) { |
506 |
> |
ibresp(colmin, colmin); |
507 |
> |
ibresp(colmax, colmax); |
508 |
> |
} |
509 |
|
/* compute color mapping */ |
510 |
|
do { |
511 |
|
cflags = inpflags & ~gmtflags; |
512 |
|
n = 0; /* compute transform matrix */ |
513 |
< |
for (i = 0; i < 24; i++) |
514 |
< |
if (cflags & 1L<<i) { |
513 |
> |
for (i = 0; i < 24; i++) { |
514 |
> |
if (!(cflags & 1L<<i)) |
515 |
> |
continue; |
516 |
> |
if (scanning) { |
517 |
|
bresp(clrin[n], inpRGB[i]); |
518 |
|
copycolor(clrout[n], mbRGB[i]); |
519 |
< |
n++; |
519 |
> |
} else { |
520 |
> |
copycolor(clrin[n], inpRGB[i]); |
521 |
> |
ibresp(clrout[n], mbRGB[i]); |
522 |
|
} |
523 |
+ |
n++; |
524 |
+ |
} |
525 |
|
compsoln(clrin, clrout, n); |
526 |
< |
if (irrad > 0.99 && irrad < 1.01) /* check gamut */ |
527 |
< |
for (i = 0; i < 24; i++) |
528 |
< |
if (cflags & 1L<<i && cvtcolor(ctmp, mbRGB[i])) |
515 |
< |
gmtflags |= 1L<<i; |
526 |
> |
for (i = 0; i < 24; i++) /* check gamut */ |
527 |
> |
if (cflags & 1L<<i && cvtcolor(ctmp, inpRGB[i])) |
528 |
> |
gmtflags |= 1L<<i; |
529 |
|
} while (cflags & gmtflags); |
530 |
+ |
|
531 |
|
if (gmtflags & MODFLGS) |
532 |
|
fprintf(stderr, |
533 |
|
"%s: warning - some moderate colors are out of gamut\n", |
539 |
|
putmapping(void) /* put out color mapping */ |
540 |
|
{ |
541 |
|
static char cchar[3] = {'r', 'g', 'b'}; |
542 |
< |
register int i, j; |
542 |
> |
int i, j; |
543 |
|
/* print brightness mapping */ |
544 |
|
for (j = 0; j < 3; j++) { |
545 |
|
printf("%cxa(i) : select(i", cchar[j]); |
595 |
|
double mat[3][3], invmat[3][3]; |
596 |
|
double det; |
597 |
|
double colv[3], rowv[3]; |
598 |
< |
register int i, j, k; |
598 |
> |
int i, j, k; |
599 |
|
|
600 |
|
if (n < 3) { |
601 |
|
fprintf(stderr, "%s: too few colors to match!\n", progname); |
650 |
|
static void |
651 |
|
cwarp(void) /* compute color warp map */ |
652 |
|
{ |
653 |
< |
register int i; |
653 |
> |
int i; |
654 |
|
|
655 |
|
if ((wcor = new3dw(W3EXACT)) == NULL) |
656 |
|
goto memerr; |
701 |
|
static void |
702 |
|
xyY2RGB( /* convert xyY to RGB */ |
703 |
|
COLOR rgbout, |
704 |
< |
register float xyYin[3] |
704 |
> |
float xyYin[3] |
705 |
|
) |
706 |
|
{ |
707 |
|
COLOR ctmp; |
722 |
|
static COLOR blkcol = BLKCOLOR; |
723 |
|
COLOR *scan; |
724 |
|
int y, i; |
725 |
< |
register int x, rg; |
725 |
> |
int x, rg; |
726 |
|
|
727 |
|
if (fseek(stdin, 0L, 0) == EOF) { |
728 |
|
fprintf(stderr, "%s: cannot seek on input picture\n", progname); |
781 |
|
COLR *scan; |
782 |
|
COLOR ctmp, ct2; |
783 |
|
int y, i; |
784 |
< |
register int x, rg; |
784 |
> |
int x, rg; |
785 |
|
/* convert colors */ |
786 |
|
for (i = 0; i < 24; i++) { |
787 |
|
copycolor(ctmp, mbRGB[i]); |