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- <refentry id="V4L2-PIX-FMT-GREY">
- <refmeta>
- <refentrytitle>V4L2_PIX_FMT_GREY ('GREY')</refentrytitle>
- &manvol;
- </refmeta>
- <refnamediv>
- <refname><constant>V4L2_PIX_FMT_GREY</constant></refname>
- <refpurpose>Grey-scale image</refpurpose>
- </refnamediv>
- <refsect1>
- <title>Description</title>
-
- <para>This is a grey-scale image. It is really a degenerate
-Y'CbCr format which simply contains no Cb or Cr data.</para>
-
- <example>
- <title><constant>V4L2_PIX_FMT_GREY</constant> 4 &times; 4
-pixel image</title>
-
- <formalpara>
- <title>Byte Order.</title>
- <para>Each cell is one byte.
- <informaltable frame="none">
- <tgroup cols="5" align="center">
- <colspec align="left" colwidth="2*" />
- <tbody valign="top">
- <row>
- <entry>start&nbsp;+&nbsp;0:</entry>
- <entry>Y'<subscript>00</subscript></entry>
- <entry>Y'<subscript>01</subscript></entry>
- <entry>Y'<subscript>02</subscript></entry>
- <entry>Y'<subscript>03</subscript></entry>
- </row>
- <row>
- <entry>start&nbsp;+&nbsp;4:</entry>
- <entry>Y'<subscript>10</subscript></entry>
- <entry>Y'<subscript>11</subscript></entry>
- <entry>Y'<subscript>12</subscript></entry>
- <entry>Y'<subscript>13</subscript></entry>
- </row>
- <row>
- <entry>start&nbsp;+&nbsp;8:</entry>
- <entry>Y'<subscript>20</subscript></entry>
- <entry>Y'<subscript>21</subscript></entry>
- <entry>Y'<subscript>22</subscript></entry>
- <entry>Y'<subscript>23</subscript></entry>
- </row>
- <row>
- <entry>start&nbsp;+&nbsp;12:</entry>
- <entry>Y'<subscript>30</subscript></entry>
- <entry>Y'<subscript>31</subscript></entry>
- <entry>Y'<subscript>32</subscript></entry>
- <entry>Y'<subscript>33</subscript></entry>
- </row>
- </tbody>
- </tgroup>
- </informaltable>
- </para>
- </formalpara>
- </example>
- </refsect1>
- </refentry>