blob: dfc4a8367b3d437bdb586c0d0163cc19a915f742 (
plain)
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
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
.. Permission is granted to copy, distribute and/or modify this
.. document under the terms of the GNU Free Documentation License,
.. Version 1.1 or any later version published by the Free Software
.. Foundation, with no Invariant Sections, no Front-Cover Texts
.. and no Back-Cover Texts. A copy of the license is included at
.. Documentation/media/uapi/fdl-appendix.rst.
..
.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
.. _packed-hsv:
******************
Packed HSV formats
******************
Description
===========
The *hue* (h) is measured in degrees, the equivalence between degrees and LSBs
depends on the hsv-encoding used, see :ref:`colorspaces`.
The *saturation* (s) and the *value* (v) are measured in percentage of the
cylinder: 0 being the smallest value and 255 the maximum.
The values are packed in 24 or 32 bit formats.
.. raw:: latex
\begingroup
\tiny
\setlength{\tabcolsep}{2pt}
.. tabularcolumns:: |p{2.6cm}|p{0.8cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|
.. _packed-hsv-formats:
.. flat-table:: Packed HSV Image Formats
:header-rows: 2
:stub-columns: 0
* - Identifier
- Code
-
- :cspan:`7` Byte 0 in memory
- :cspan:`7` Byte 1
- :cspan:`7` Byte 2
- :cspan:`7` Byte 3
* -
-
- Bit
- 7
- 6
- 5
- 4
- 3
- 2
- 1
- 0
- 7
- 6
- 5
- 4
- 3
- 2
- 1
- 0
- 7
- 6
- 5
- 4
- 3
- 2
- 1
- 0
- 7
- 6
- 5
- 4
- 3
- 2
- 1
- 0
* .. _V4L2-PIX-FMT-HSV32:
- ``V4L2_PIX_FMT_HSV32``
- 'HSV4'
-
-
-
-
-
-
-
-
-
- h\ :sub:`7`
- h\ :sub:`6`
- h\ :sub:`5`
- h\ :sub:`4`
- h\ :sub:`3`
- h\ :sub:`2`
- h\ :sub:`1`
- h\ :sub:`0`
- s\ :sub:`7`
- s\ :sub:`6`
- s\ :sub:`5`
- s\ :sub:`4`
- s\ :sub:`3`
- s\ :sub:`2`
- s\ :sub:`1`
- s\ :sub:`0`
- v\ :sub:`7`
- v\ :sub:`6`
- v\ :sub:`5`
- v\ :sub:`4`
- v\ :sub:`3`
- v\ :sub:`2`
- v\ :sub:`1`
- v\ :sub:`0`
* .. _V4L2-PIX-FMT-HSV24:
- ``V4L2_PIX_FMT_HSV24``
- 'HSV3'
-
- h\ :sub:`7`
- h\ :sub:`6`
- h\ :sub:`5`
- h\ :sub:`4`
- h\ :sub:`3`
- h\ :sub:`2`
- h\ :sub:`1`
- h\ :sub:`0`
- s\ :sub:`7`
- s\ :sub:`6`
- s\ :sub:`5`
- s\ :sub:`4`
- s\ :sub:`3`
- s\ :sub:`2`
- s\ :sub:`1`
- s\ :sub:`0`
- v\ :sub:`7`
- v\ :sub:`6`
- v\ :sub:`5`
- v\ :sub:`4`
- v\ :sub:`3`
- v\ :sub:`2`
- v\ :sub:`1`
- v\ :sub:`0`
-
.. raw:: latex
\endgroup
Bit 7 is the most significant bit.
|
