diff options
Diffstat (limited to '')
-rw-r--r-- | libraries/openjpeg-libsl/libopenjpeg/dwt.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/libraries/openjpeg-libsl/libopenjpeg/dwt.h b/libraries/openjpeg-libsl/libopenjpeg/dwt.h new file mode 100644 index 0000000..5c95c76 --- /dev/null +++ b/libraries/openjpeg-libsl/libopenjpeg/dwt.h | |||
@@ -0,0 +1,113 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium | ||
3 | * Copyright (c) 2002-2007, Professor Benoit Macq | ||
4 | * Copyright (c) 2001-2003, David Janssens | ||
5 | * Copyright (c) 2002-2003, Yannick Verschueren | ||
6 | * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe | ||
7 | * Copyright (c) 2005, Herve Drolon, FreeImage Team | ||
8 | * All rights reserved. | ||
9 | * | ||
10 | * Redistribution and use in source and binary forms, with or without | ||
11 | * modification, are permitted provided that the following conditions | ||
12 | * are met: | ||
13 | * 1. Redistributions of source code must retain the above copyright | ||
14 | * notice, this list of conditions and the following disclaimer. | ||
15 | * 2. Redistributions in binary form must reproduce the above copyright | ||
16 | * notice, this list of conditions and the following disclaimer in the | ||
17 | * documentation and/or other materials provided with the distribution. | ||
18 | * | ||
19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS' | ||
20 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | ||
23 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | ||
24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | ||
25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | ||
26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | ||
27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | ||
29 | * POSSIBILITY OF SUCH DAMAGE. | ||
30 | */ | ||
31 | |||
32 | #ifndef __DWT_H | ||
33 | #define __DWT_H | ||
34 | /** | ||
35 | @file dwt.h | ||
36 | @brief Implementation of a discrete wavelet transform (DWT) | ||
37 | |||
38 | The functions in DWT.C have for goal to realize forward and inverse discret wavelet | ||
39 | transform with filter 5-3 (reversible) and filter 9-7 (irreversible). The functions in | ||
40 | DWT.C are used by some function in TCD.C. | ||
41 | */ | ||
42 | |||
43 | /** @defgroup DWT DWT - Implementation of a discrete wavelet transform */ | ||
44 | /*@{*/ | ||
45 | |||
46 | |||
47 | /** @name Exported functions */ | ||
48 | /*@{*/ | ||
49 | /* ----------------------------------------------------------------------- */ | ||
50 | /** | ||
51 | Forward 5-3 wavelet tranform in 2-D. | ||
52 | Apply a reversible DWT transform to a component of an image. | ||
53 | @param tilec Tile component information (current tile) | ||
54 | */ | ||
55 | void dwt_encode(opj_tcd_tilecomp_t * tilec); | ||
56 | /** | ||
57 | Inverse 5-3 wavelet tranform in 2-D. | ||
58 | Apply a reversible inverse DWT transform to a component of an image. | ||
59 | @param tilec Tile component information (current tile) | ||
60 | @param stop FIXME Number of decoded resolution levels ? | ||
61 | */ | ||
62 | void dwt_decode(opj_tcd_tilecomp_t * tilec, int stop); | ||
63 | /** | ||
64 | Get the gain of a subband for the reversible 5-3 DWT. | ||
65 | @param orient Number that identifies the subband (0->LL, 1->HL, 2->LH, 3->HH) | ||
66 | @return Returns 0 if orient = 0, returns 1 if orient = 1 or 2, returns 2 otherwise | ||
67 | */ | ||
68 | int dwt_getgain(int orient); | ||
69 | /** | ||
70 | Get the norm of a wavelet function of a subband at a specified level for the reversible 5-3 DWT. | ||
71 | @param level Level of the wavelet function | ||
72 | @param orient Band of the wavelet function | ||
73 | @return Returns the norm of the wavelet function | ||
74 | */ | ||
75 | double dwt_getnorm(int level, int orient); | ||
76 | /** | ||
77 | Forward 9-7 wavelet transform in 2-D. | ||
78 | Apply an irreversible DWT transform to a component of an image. | ||
79 | @param tilec Tile component information (current tile) | ||
80 | */ | ||
81 | void dwt_encode_real(opj_tcd_tilecomp_t * tilec); | ||
82 | /** | ||
83 | Inverse 9-7 wavelet transform in 2-D. | ||
84 | Apply an irreversible inverse DWT transform to a component of an image. | ||
85 | @param tilec Tile component information (current tile) | ||
86 | @param stop FIXME Number of decoded resolution levels ? | ||
87 | */ | ||
88 | void dwt_decode_real(opj_tcd_tilecomp_t * tilec, int stop); | ||
89 | /** | ||
90 | Get the gain of a subband for the irreversible 9-7 DWT. | ||
91 | @param orient Number that identifies the subband (0->LL, 1->HL, 2->LH, 3->HH) | ||
92 | @return Returns the gain of the 9-7 wavelet transform | ||
93 | */ | ||
94 | int dwt_getgain_real(int orient); | ||
95 | /** | ||
96 | Get the norm of a wavelet function of a subband at a specified level for the irreversible 9-7 DWT | ||
97 | @param level Level of the wavelet function | ||
98 | @param orient Band of the wavelet function | ||
99 | @return Returns the norm of the 9-7 wavelet | ||
100 | */ | ||
101 | double dwt_getnorm_real(int level, int orient); | ||
102 | /** | ||
103 | FIXME : comment ??? | ||
104 | @param tccp | ||
105 | @param prec | ||
106 | */ | ||
107 | void dwt_calc_explicit_stepsizes(opj_tccp_t * tccp, int prec); | ||
108 | /* ----------------------------------------------------------------------- */ | ||
109 | /*@}*/ | ||
110 | |||
111 | /*@}*/ | ||
112 | |||
113 | #endif /* __DWT_H */ | ||