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039aa702 GL |
1 | <refentry id="V4L2-PIX-FMT-SRGGB8"> |
2 | <refmeta> | |
3 | <refentrytitle>V4L2_PIX_FMT_SRGGB8 ('RGGB')</refentrytitle> | |
4 | &manvol; | |
5 | </refmeta> | |
6 | <refnamediv> | |
7 | <refname><constant>V4L2_PIX_FMT_SRGGB8</constant></refname> | |
8 | <refpurpose>Bayer RGB format</refpurpose> | |
9 | </refnamediv> | |
10 | <refsect1> | |
11 | <title>Description</title> | |
12 | ||
13 | <para>This is commonly the native format of digital cameras, | |
14 | reflecting the arrangement of sensors on the CCD device. Only one red, | |
15 | green or blue value is given for each pixel. Missing components must | |
16 | be interpolated from neighbouring pixels. From left to right the first | |
17 | row consists of a red and green value, the second row of a green and | |
18 | blue value. This scheme repeats to the right and down for every two | |
19 | columns and rows.</para> | |
20 | ||
21 | <example> | |
22 | <title><constant>V4L2_PIX_FMT_SRGGB8</constant> 4 × 4 | |
23 | pixel image</title> | |
24 | ||
25 | <formalpara> | |
26 | <title>Byte Order.</title> | |
27 | <para>Each cell is one byte. | |
28 | <informaltable frame="none"> | |
29 | <tgroup cols="5" align="center"> | |
30 | <colspec align="left" colwidth="2*" /> | |
31 | <tbody valign="top"> | |
32 | <row> | |
33 | <entry>start + 0:</entry> | |
34 | <entry>R<subscript>00</subscript></entry> | |
35 | <entry>G<subscript>01</subscript></entry> | |
36 | <entry>R<subscript>02</subscript></entry> | |
37 | <entry>G<subscript>03</subscript></entry> | |
38 | </row> | |
39 | <row> | |
40 | <entry>start + 4:</entry> | |
41 | <entry>G<subscript>10</subscript></entry> | |
42 | <entry>B<subscript>11</subscript></entry> | |
43 | <entry>G<subscript>12</subscript></entry> | |
44 | <entry>B<subscript>13</subscript></entry> | |
45 | </row> | |
46 | <row> | |
47 | <entry>start + 8:</entry> | |
48 | <entry>R<subscript>20</subscript></entry> | |
49 | <entry>G<subscript>21</subscript></entry> | |
50 | <entry>R<subscript>22</subscript></entry> | |
51 | <entry>G<subscript>23</subscript></entry> | |
52 | </row> | |
53 | <row> | |
54 | <entry>start + 12:</entry> | |
55 | <entry>G<subscript>30</subscript></entry> | |
56 | <entry>B<subscript>31</subscript></entry> | |
57 | <entry>G<subscript>32</subscript></entry> | |
58 | <entry>B<subscript>33</subscript></entry> | |
59 | </row> | |
60 | </tbody> | |
61 | </tgroup> | |
62 | </informaltable> | |
63 | </para> | |
64 | </formalpara> | |
65 | </example> | |
66 | </refsect1> | |
67 | </refentry> |