1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
#include <pam.h>
#include <lcms.h>
static int
pam_transform(struct pam *inpam, struct pam *outpam, cmsHTRANSFORM *hTransform);
int
main(int argc, char **argv) {
int c, i, nProf = 0;
char *in_prof = NULL, *out_prof = NULL;
double gamma = 0.0;
cmsHTRANSFORM hTransform;
cmsHPROFILE profiles[3];
struct pam inpam, outpam;
while ((c = getopt(argc, argv, "i:o:g:")) != EOF) {
switch (c) {
case 'i':
in_prof = optarg;
break;
case 'o':
out_prof = optarg;
break;
case 'g':
gamma = atof(optarg);
break;
default:
break;
}
}
if (in_prof) {
profiles[nProf++] = cmsOpenProfileFromFile(in_prof, "r");
} else {
profiles[nProf++] = cmsCreate_sRGBProfile();
}
if (gamma) {
LPGAMMATABLE gTable[3];
gTable[0] = cmsBuildGamma(256, gamma);
gTable[1] = gTable[2] = cmsBuildGamma(256, 1.0);
profiles[nProf++] = cmsCreateLinearizationDeviceLink(
icSigLabData,
gTable);
}
if (out_prof) {
profiles[nProf++] = cmsOpenProfileFromFile(out_prof, "r");
} else {
profiles[nProf++] = cmsCreate_sRGBProfile();
}
hTransform = cmsCreateMultiprofileTransform(
profiles,
nProf,
TYPE_RGB_16,
TYPE_RGB_16,
INTENT_PERCEPTUAL,
0);
pm_init(argv[0], 0);
pnm_readpaminit(stdin, &inpam, PAM_STRUCT_SIZE(tuple_type));
outpam = inpam; outpam.file = stdout;
pnm_writepaminit(&outpam);
pam_transform(&inpam, &outpam, &hTransform);
cmsDeleteTransform(hTransform);
for (i = 0; i < nProf; i++) {
cmsCloseProfile(profiles[i]);
}
return 0;
}
static int
pam_transform(struct pam *inpam, struct pam *outpam, cmsHTRANSFORM *hTransform)
{
tuple *inrow, *outrow;
int row, col;
inrow = pnm_allocpamrow(inpam);
outrow = pnm_allocpamrow(outpam);
for (row = 0; row < inpam->height; row++) {
pnm_readpamrow(inpam, inrow);
for (col = 0; col < inpam->width; col++) {
int i;
unsigned short inpix[3], outpix[3];
for (i = 0; i < 3; i++) {
inpix[i] = (unsigned short) inrow[col][i];
}
cmsDoTransform(*hTransform, inpix, outpix, 1);
for (i = 0; i < 3; i++) {
outrow[col][i] = (sample) outpix[i];
}
}
pnm_writepamrow(outpam, outrow);
}
pnm_freepamrow(inrow);
pnm_freepamrow(outrow);
return 0;
}
|
