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76 lines
2.3 KiB
76 lines
2.3 KiB
16 years ago
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<refentry id="V4L2-PIX-FMT-SGRBG8">
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<refmeta>
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<refentrytitle>V4L2_PIX_FMT_SGRBG8 ('GRBG')</refentrytitle>
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&manvol;
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</refmeta>
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<refnamediv>
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<refname><constant>V4L2_PIX_FMT_SGRBG8</constant></refname>
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<refpurpose>Bayer RGB format</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<para>This is commonly the native format of digital cameras,
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reflecting the arrangement of sensors on the CCD device. Only one red,
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green or blue value is given for each pixel. Missing components must
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be interpolated from neighbouring pixels. From left to right the first
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row consists of a green and blue value, the second row of a red and
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green value. This scheme repeats to the right and down for every two
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columns and rows.</para>
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<example>
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<title><constant>V4L2_PIX_FMT_SGRBG8</constant> 4 ×
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4 pixel image</title>
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<formalpara>
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<title>Byte Order.</title>
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<para>Each cell is one byte.
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<informaltable frame="none">
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<tgroup cols="5" align="center">
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<colspec align="left" colwidth="2*" />
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<tbody valign="top">
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<row>
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<entry>start + 0:</entry>
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<entry>G<subscript>00</subscript></entry>
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<entry>R<subscript>01</subscript></entry>
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<entry>G<subscript>02</subscript></entry>
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<entry>R<subscript>03</subscript></entry>
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</row>
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<row>
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<entry>start + 4:</entry>
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<entry>R<subscript>10</subscript></entry>
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<entry>B<subscript>11</subscript></entry>
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<entry>R<subscript>12</subscript></entry>
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<entry>B<subscript>13</subscript></entry>
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</row>
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<row>
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<entry>start + 8:</entry>
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<entry>G<subscript>20</subscript></entry>
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<entry>R<subscript>21</subscript></entry>
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<entry>G<subscript>22</subscript></entry>
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<entry>R<subscript>23</subscript></entry>
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</row>
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<row>
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<entry>start + 12:</entry>
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<entry>R<subscript>30</subscript></entry>
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<entry>B<subscript>31</subscript></entry>
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<entry>R<subscript>32</subscript></entry>
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<entry>B<subscript>33</subscript></entry>
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</row>
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</tbody>
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</tgroup>
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</informaltable>
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</para>
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</formalpara>
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</example>
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</refsect1>
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</refentry>
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<!--
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Local Variables:
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mode: sgml
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sgml-parent-document: "pixfmt.sgml"
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indent-tabs-mode: nil
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End:
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-->
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