1 |
/* RCSid $Id: falsecolor.h,v 3.3 2005/11/15 20:04:50 greg Exp $ */ |
2 |
/* |
3 |
* Header file for false color tone-mapping. |
4 |
* |
5 |
* Include after "color.h" and "tonemap.h" |
6 |
*/ |
7 |
#ifndef _RAD_FALSECOLOR_H_ |
8 |
#define _RAD_FALSECOLOR_H_ |
9 |
|
10 |
#ifdef __cplusplus |
11 |
extern "C" { |
12 |
#endif |
13 |
/* false color mapping data structure */ |
14 |
typedef struct { |
15 |
TMbright mbrmin, mbrmax; /* mapped min. & max. brightnesses */ |
16 |
uby8 *lumap; /* false color luminance map */ |
17 |
uby8 (*scale)[3]; /* false color ordinal scale */ |
18 |
} FCstruct; |
19 |
|
20 |
extern uby8 fcDefaultScale[256][3]; /* default false color scale */ |
21 |
|
22 |
extern FCstruct * |
23 |
fcInit(uby8 fcscale[256][3]); |
24 |
/* |
25 |
Allocate and initialize false color mapping data structure. |
26 |
|
27 |
fcscale - false color ordinal scale. |
28 |
|
29 |
returns - new false color mapping pointer, or NULL if no memory. |
30 |
*/ |
31 |
|
32 |
extern int |
33 |
fcFixedLinear(FCstruct *fcs, double Lwmax); |
34 |
/* |
35 |
Assign fixed linear false color map. |
36 |
|
37 |
fcs - false color structure pointer. |
38 |
Lwmax - maximum luminance for scaling |
39 |
|
40 |
returns - 0 on success, TM_E_* on failure. |
41 |
*/ |
42 |
|
43 |
extern int |
44 |
fcFixedLog(FCstruct *fcs, double Lwmin, double Lwmax); |
45 |
/* |
46 |
Assign fixed logarithmic false color map. |
47 |
|
48 |
fcs - false color structure pointer. |
49 |
Lwmin - minimum luminance for scaling |
50 |
Lwmax - maximum luminance for scaling |
51 |
|
52 |
returns - 0 on success, TM_E_* on failure. |
53 |
*/ |
54 |
|
55 |
extern int |
56 |
fcLinearMapping(FCstruct *fcs, TMstruct *tms, double pctile); |
57 |
/* |
58 |
Compute linear false color map. |
59 |
|
60 |
fcs - false color structure pointer. |
61 |
tms - tone mapping structure pointer, with histogram. |
62 |
pctile - percentile to ignore on top |
63 |
|
64 |
returns - 0 on success, TM_E_* on failure. |
65 |
*/ |
66 |
|
67 |
extern int |
68 |
fcLogMapping(FCstruct *fcs, TMstruct *tms, double pctile); |
69 |
/* |
70 |
Compute logarithmic false color map. |
71 |
|
72 |
fcs - false color structure pointer. |
73 |
tms - tone mapping structure pointer, with histogram. |
74 |
pctile - percentile to ignore on top and bottom |
75 |
|
76 |
returns - 0 on success, TM_E_* on failure. |
77 |
*/ |
78 |
|
79 |
extern int |
80 |
fcMapPixels(FCstruct *fcs, uby8 *ps, TMbright *ls, int len); |
81 |
/* |
82 |
Apply false color mapping to pixel values. |
83 |
|
84 |
fcs - false color structure pointer. |
85 |
ps - returned RGB pixel values. |
86 |
ls - encoded luminance values. |
87 |
len - number of pixels. |
88 |
|
89 |
returns - 0 on success, TM_E_* on failure. |
90 |
*/ |
91 |
|
92 |
extern int |
93 |
fcIsLogMap(FCstruct *fcs); |
94 |
/* |
95 |
Determine if false color mapping is logarithmic. |
96 |
|
97 |
fcs - false color structure pointer. |
98 |
|
99 |
returns - 1 if map follows logarithmic mapping, -1 on error. |
100 |
*/ |
101 |
|
102 |
extern FCstruct * |
103 |
fcDup(FCstruct *fcs); |
104 |
/* |
105 |
Duplicate a false color structure. |
106 |
|
107 |
fcs - false color structure pointer. |
108 |
|
109 |
returns - duplicate structure, or NULL if no memory. |
110 |
*/ |
111 |
|
112 |
extern void |
113 |
fcDone(FCstruct *fcs); |
114 |
/* |
115 |
Free data associated with the given false color mapping structure. |
116 |
|
117 |
fcs - false color mapping structure to free. |
118 |
*/ |
119 |
|
120 |
#ifdef __cplusplus |
121 |
} |
122 |
#endif |
123 |
#endif /* _RAD_FALSECOLOR_H_ */ |