| Mauro Carvalho Chehab | 8e080c2 | 2009-09-13 22:16:04 -0300 | [diff] [blame] | 1 | <refentry id="V4L2-PIX-FMT-SGRBG8"> |
| 2 | <refmeta> |
| 3 | <refentrytitle>V4L2_PIX_FMT_SGRBG8 ('GRBG')</refentrytitle> |
| 4 | &manvol; |
| 5 | </refmeta> |
| 6 | <refnamediv> |
| 7 | <refname><constant>V4L2_PIX_FMT_SGRBG8</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 green and blue value, the second row of a red and |
| 18 | green 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_SGRBG8</constant> 4 × |
| 23 | 4 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>G<subscript>00</subscript></entry> |
| 35 | <entry>R<subscript>01</subscript></entry> |
| 36 | <entry>G<subscript>02</subscript></entry> |
| 37 | <entry>R<subscript>03</subscript></entry> |
| 38 | </row> |
| 39 | <row> |
| 40 | <entry>start + 4:</entry> |
| 41 | <entry>R<subscript>10</subscript></entry> |
| 42 | <entry>B<subscript>11</subscript></entry> |
| 43 | <entry>R<subscript>12</subscript></entry> |
| 44 | <entry>B<subscript>13</subscript></entry> |
| 45 | </row> |
| 46 | <row> |
| 47 | <entry>start + 8:</entry> |
| 48 | <entry>G<subscript>20</subscript></entry> |
| 49 | <entry>R<subscript>21</subscript></entry> |
| 50 | <entry>G<subscript>22</subscript></entry> |
| 51 | <entry>R<subscript>23</subscript></entry> |
| 52 | </row> |
| 53 | <row> |
| 54 | <entry>start + 12:</entry> |
| 55 | <entry>R<subscript>30</subscript></entry> |
| 56 | <entry>B<subscript>31</subscript></entry> |
| 57 | <entry>R<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> |
| 68 | |
| 69 | <!-- |
| 70 | Local Variables: |
| 71 | mode: sgml |
| 72 | sgml-parent-document: "pixfmt.sgml" |
| 73 | indent-tabs-mode: nil |
| 74 | End: |
| 75 | --> |