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authorRicardo Ribalda Delgado <ricardo.ribalda@gmail.com>2016-08-18 11:33:28 -0300
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2016-10-21 15:46:17 -0200
commit9bef7546b09fdefe56918f1d1aba55e08870cdad (patch)
tree334d4d147fa70f140f097354aed8286e1d62781c /Documentation/media
parent66b2ab271afc0888b87a44dc946cc68067ba0985 (diff)
[media] Documentation: Add HSV format
Describe the HSV formats Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'Documentation/media')
-rw-r--r--Documentation/media/uapi/v4l/hsv-formats.rst19
-rw-r--r--Documentation/media/uapi/v4l/pixfmt-packed-hsv.rst156
-rw-r--r--Documentation/media/uapi/v4l/pixfmt.rst1
-rw-r--r--Documentation/media/uapi/v4l/v4l2.rst5
4 files changed, 181 insertions, 0 deletions
diff --git a/Documentation/media/uapi/v4l/hsv-formats.rst b/Documentation/media/uapi/v4l/hsv-formats.rst
new file mode 100644
index 000000000000..f0f2615eaa95
--- /dev/null
+++ b/Documentation/media/uapi/v4l/hsv-formats.rst
@@ -0,0 +1,19 @@
+.. -*- coding: utf-8; mode: rst -*-
+
+.. _hsv-formats:
+
+***********
+HSV Formats
+***********
+
+These formats store the color information of the image
+in a geometrical representation. The colors are mapped into a
+cylinder, where the angle is the HUE, the height is the VALUE
+and the distance to the center is the SATURATION. This is a very
+useful format for image segmentation algorithms.
+
+
+.. toctree::
+ :maxdepth: 1
+
+ pixfmt-packed-hsv
diff --git a/Documentation/media/uapi/v4l/pixfmt-packed-hsv.rst b/Documentation/media/uapi/v4l/pixfmt-packed-hsv.rst
new file mode 100644
index 000000000000..4a579727f61c
--- /dev/null
+++ b/Documentation/media/uapi/v4l/pixfmt-packed-hsv.rst
@@ -0,0 +1,156 @@
+.. -*- coding: utf-8; mode: rst -*-
+
+.. _packed-hsv:
+
+******************
+Packed HSV formats
+******************
+
+Description
+===========
+
+The *hue* (h) is measured in degrees, one LSB represents two degrees.
+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
+
+ \newline\begin{adjustbox}{width=\columnwidth}
+
+.. tabularcolumns:: |p{4.2cm}|p{1.0cm}|p{0.7cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.2cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.2cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.2cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{0.4cm}|p{1.7cm}|
+
+.. _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
+
+ \end{adjustbox}\newline\newline
+
+Bit 7 is the most significant bit.
diff --git a/Documentation/media/uapi/v4l/pixfmt.rst b/Documentation/media/uapi/v4l/pixfmt.rst
index 4d297f6eb5f1..4f184c7aedab 100644
--- a/Documentation/media/uapi/v4l/pixfmt.rst
+++ b/Documentation/media/uapi/v4l/pixfmt.rst
@@ -29,6 +29,7 @@ see also :ref:`VIDIOC_G_FBUF <VIDIOC_G_FBUF>`.)
pixfmt-indexed
pixfmt-rgb
yuv-formats
+ hsv-formats
depth-formats
pixfmt-013
sdr-formats
diff --git a/Documentation/media/uapi/v4l/v4l2.rst b/Documentation/media/uapi/v4l/v4l2.rst
index 55b959dda07e..683f92ed023f 100644
--- a/Documentation/media/uapi/v4l/v4l2.rst
+++ b/Documentation/media/uapi/v4l/v4l2.rst
@@ -89,6 +89,11 @@ part can be used and distributed without restrictions.
Revision History
****************
+:revision: 4.10 / 2016-07-15 (*rr*)
+
+Introduce HSV formats.
+
+
:revision: 4.5 / 2015-10-29 (*rr*)
Extend VIDIOC_G_EXT_CTRLS;. Replace ctrl_class with a new union with