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* Warping code depends on conformance of COLOR and W3VEC types. |
11 |
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*/ |
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13 |
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#include <stdio.h> |
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#include <math.h> |
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#include <time.h> |
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|
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#include "platform.h" |
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#include "paths.h" |
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#define RG_CORR 04 /* corrected color region */ |
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|
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#ifndef DISPCOM |
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< |
#define DISPCOM "ximage -op \"%s\"" |
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> |
#define DISPCOM "ximage -e auto -op \"%s\"" |
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#endif |
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|
105 |
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int scanning = 1; /* scanned input (or recorded output)? */ |
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WARP3D *wcor = NULL; /* color space warp */ |
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|
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FILE *debugfp = NULL; /* debug output picture */ |
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char *progname; |
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|
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static void init(void); |
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static int chartndx(int x, int y, int *np); |
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static void getpicture(void); |
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static void getcolors(void); |
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static void bresp(COLOR y, COLOR x); |
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static void ibresp(COLOR y, COLOR x); |
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static void compute(void); |
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static void putmapping(void); |
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static void compsoln(COLOR cin[], COLOR cout[], int n); |
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{ |
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int i; |
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|
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< |
progname = argv[0]; |
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> |
fixargv0(argv[0]); /* sets global progname */ |
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for (i = 1; i < argc && argv[i][0] == '-'; i++) |
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switch (argv[i][1]) { |
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case 'd': /* debug output */ |
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getcolors(); |
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compute(); /* compute color mapping */ |
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if (rawmap) { /* print out raw correspondence */ |
237 |
< |
register int j; |
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> |
int j; |
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|
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printf("# Color correspondence produced by:\n#\t\t"); |
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printargs(argc, argv, stdout); |
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init(void) /* initialize */ |
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{ |
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double quad[4][2]; |
286 |
< |
register int i; |
286 |
> |
int i; |
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/* make coordinate transformation */ |
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quad[0][0] = bounds[0][0]; |
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quad[0][1] = bounds[0][1]; |
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mx3d_transform(ipos, imgxfm, cpos); |
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cpos[0] /= cpos[2]; |
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cpos[1] /= cpos[2]; |
326 |
< |
if (cpos[0] < 0. || cpos[0] >= 6. || cpos[1] < 0. || cpos[1] >= 4.) |
326 |
> |
if ((cpos[0] < 0.) | (cpos[0] >= 6.) | (cpos[1] < 0.) | (cpos[1] >= 4.)) |
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return(RG_BORD); |
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ix = cpos[0]; |
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iy = cpos[1]; |
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fx = cpos[0] - ix; |
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fy = cpos[1] - iy; |
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*np = iy*6 + ix; |
333 |
< |
if (fx >= 0.35 && fx < 0.65 && fy >= 0.35 && fy < 0.65) |
333 |
> |
if ((fx >= 0.35) & (fx < 0.65) & (fy >= 0.35) & (fy < 0.65)) |
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return(RG_CENT); |
335 |
< |
if (fx < 0.05 || fx >= 0.95 || fy < 0.05 || fy >= 0.95) |
335 |
> |
if ((fx < 0.05) | (fx >= 0.95) | (fy < 0.05) | (fy >= 0.95)) |
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return(RG_BORD); |
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if (fx >= 0.5) /* right side is corrected */ |
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return(RG_CORR); |
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int ccount[24]; |
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double d; |
350 |
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int y, i; |
351 |
< |
register int x; |
351 |
> |
int x; |
352 |
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|
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scanln = (COLR *)malloc(xmax*sizeof(COLR)); |
354 |
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if (scanln == NULL) { |
434 |
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|
435 |
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static void |
436 |
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bresp( /* piecewise linear interpolation of primaries */ |
437 |
< |
COLOR y, |
438 |
< |
COLOR x |
437 |
> |
COLOR y, /* y is linear output */ |
438 |
> |
COLOR x /* x is non-linear input */ |
439 |
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) |
440 |
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{ |
441 |
< |
register int i, n; |
441 |
> |
int i, n; |
442 |
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|
443 |
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for (i = 0; i < 3; i++) { |
444 |
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for (n = 0; n < NMBNEU-2; n++) |
454 |
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|
455 |
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|
456 |
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static void |
457 |
+ |
ibresp( /* inverse mapping (delinearization) */ |
458 |
+ |
COLOR x, /* x is non-linear output */ |
459 |
+ |
COLOR y /* y is linear input */ |
460 |
+ |
) |
461 |
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{ |
462 |
+ |
int i, n; |
463 |
+ |
|
464 |
+ |
for (i = 0; i < 3; i++) { |
465 |
+ |
for (n = 0; n < NMBNEU-2; n++) |
466 |
+ |
if (colval(y,i) < colval(bramp[n+1][1],i)) |
467 |
+ |
break; |
468 |
+ |
colval(x,i) = ((colval(bramp[n+1][1],i) - colval(y,i)) * |
469 |
+ |
colval(bramp[n][0],i) + |
470 |
+ |
(colval(y,i) - colval(bramp[n][1],i)) * |
471 |
+ |
colval(bramp[n+1][0],i)) / |
472 |
+ |
(colval(bramp[n+1][1],i) - colval(bramp[n][1],i)); |
473 |
+ |
} |
474 |
+ |
} |
475 |
+ |
|
476 |
+ |
|
477 |
+ |
static void |
478 |
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compute(void) /* compute color mapping */ |
479 |
|
{ |
480 |
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COLOR clrin[24], clrout[24]; |
481 |
|
long cflags; |
482 |
|
COLOR ctmp; |
483 |
< |
register int i, n; |
483 |
> |
int i, n; |
484 |
|
/* did we get what we need? */ |
485 |
|
if ((inpflags & REQFLGS) != REQFLGS) { |
486 |
|
fprintf(stderr, "%s: missing required input colors\n", |
490 |
|
/* compute piecewise luminance curve */ |
491 |
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for (i = 0; i < NMBNEU; i++) { |
492 |
|
copycolor(bramp[i][0], inpRGB[mbneu[i]]); |
493 |
< |
for (n = i ? 3 : 0; n--; ) |
493 |
> |
for (n = 3*(i>0); n--; ) |
494 |
|
if (colval(bramp[i][0],n) <= |
495 |
|
colval(bramp[i-1][0],n)+1e-7) { |
496 |
|
fprintf(stderr, |
500 |
|
copycolor(bramp[i][1], mbRGB[mbneu[i]]); |
501 |
|
} |
502 |
|
/* compute color space gamut */ |
503 |
< |
if (scanning) { |
504 |
< |
copycolor(colmin, cblack); |
505 |
< |
copycolor(colmax, cwhite); |
506 |
< |
scalecolor(colmax, irrad); |
507 |
< |
} else |
508 |
< |
for (i = 0; i < 3; i++) { |
509 |
< |
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 |
< |
} |
503 |
> |
copycolor(colmin, cblack); |
504 |
> |
copycolor(colmax, cwhite); |
505 |
> |
scalecolor(colmax, irrad); |
506 |
> |
if (!scanning) { |
507 |
> |
ibresp(colmin, colmin); |
508 |
> |
ibresp(colmax, colmax); |
509 |
> |
} |
510 |
|
/* compute color mapping */ |
511 |
|
do { |
512 |
|
cflags = inpflags & ~gmtflags; |
513 |
|
n = 0; /* compute transform matrix */ |
514 |
< |
for (i = 0; i < 24; i++) |
515 |
< |
if (cflags & 1L<<i) { |
514 |
> |
for (i = 0; i < 24; i++) { |
515 |
> |
if (!(cflags & 1L<<i)) |
516 |
> |
continue; |
517 |
> |
if (scanning) { |
518 |
|
bresp(clrin[n], inpRGB[i]); |
519 |
|
copycolor(clrout[n], mbRGB[i]); |
520 |
< |
n++; |
520 |
> |
} else { |
521 |
> |
copycolor(clrin[n], inpRGB[i]); |
522 |
> |
ibresp(clrout[n], mbRGB[i]); |
523 |
|
} |
524 |
+ |
n++; |
525 |
+ |
} |
526 |
|
compsoln(clrin, clrout, n); |
527 |
< |
if (irrad > 0.99 && irrad < 1.01) /* check gamut */ |
528 |
< |
for (i = 0; i < 24; i++) |
529 |
< |
if (cflags & 1L<<i && cvtcolor(ctmp, mbRGB[i])) |
515 |
< |
gmtflags |= 1L<<i; |
527 |
> |
for (i = 0; i < 24; i++) /* check gamut */ |
528 |
> |
if (cflags & 1L<<i && cvtcolor(ctmp, inpRGB[i])) |
529 |
> |
gmtflags |= 1L<<i; |
530 |
|
} while (cflags & gmtflags); |
531 |
+ |
|
532 |
|
if (gmtflags & MODFLGS) |
533 |
|
fprintf(stderr, |
534 |
|
"%s: warning - some moderate colors are out of gamut\n", |
540 |
|
putmapping(void) /* put out color mapping */ |
541 |
|
{ |
542 |
|
static char cchar[3] = {'r', 'g', 'b'}; |
543 |
< |
register int i, j; |
543 |
> |
int i, j; |
544 |
|
/* print brightness mapping */ |
545 |
|
for (j = 0; j < 3; j++) { |
546 |
|
printf("%cxa(i) : select(i", cchar[j]); |
596 |
|
double mat[3][3], invmat[3][3]; |
597 |
|
double det; |
598 |
|
double colv[3], rowv[3]; |
599 |
< |
register int i, j, k; |
599 |
> |
int i, j, k; |
600 |
|
|
601 |
|
if (n < 3) { |
602 |
|
fprintf(stderr, "%s: too few colors to match!\n", progname); |
651 |
|
static void |
652 |
|
cwarp(void) /* compute color warp map */ |
653 |
|
{ |
654 |
< |
register int i; |
654 |
> |
int i; |
655 |
|
|
656 |
|
if ((wcor = new3dw(W3EXACT)) == NULL) |
657 |
|
goto memerr; |
702 |
|
static void |
703 |
|
xyY2RGB( /* convert xyY to RGB */ |
704 |
|
COLOR rgbout, |
705 |
< |
register float xyYin[3] |
705 |
> |
float xyYin[3] |
706 |
|
) |
707 |
|
{ |
708 |
|
COLOR ctmp; |
723 |
|
static COLOR blkcol = BLKCOLOR; |
724 |
|
COLOR *scan; |
725 |
|
int y, i; |
726 |
< |
register int x, rg; |
726 |
> |
int x, rg; |
727 |
|
|
728 |
|
if (fseek(stdin, 0L, 0) == EOF) { |
729 |
|
fprintf(stderr, "%s: cannot seek on input picture\n", progname); |
782 |
|
COLR *scan; |
783 |
|
COLOR ctmp, ct2; |
784 |
|
int y, i; |
785 |
< |
register int x, rg; |
785 |
> |
int x, rg; |
786 |
|
/* convert colors */ |
787 |
|
for (i = 0; i < 24; i++) { |
788 |
|
copycolor(ctmp, mbRGB[i]); |