YUV - Revision history

Admin at 14:59, 30 January 2016

2016-01-30T14:59:49Z

Raffriff42: enumerate YUV formats

2016-01-30T04:02:23Z

enumerate YUV formats

Reel.Deal: add link

2014-08-30T03:49:49Z

add link

Admin: 1 revision

2013-05-09T21:34:06Z

1 revision

Gzarkadas: content feed

2008-03-07T21:58:10Z

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YUV is a color model - or [[Color_spaces|color space]] - that consists of one luma (a.k.a. brightness) component, Y, and two chroma components, U and V. As expected, YUV represents color in a different way than [[RGB]], making necessary a [[Color_conversions|color conversion]] when switching from one format to the other.

The YUV color model is used in all video transmission and broadcasting systems (NTSC, PAL, SECAM) because of its compatibility with legacy black-and-white receivers, which can display only the luma (Y) channel of the signal.

Because of the gradual evolvement of the video transmission and broadcasting technology, there are today quite a few different YUV sub-formats, both [[Interleaved|interleaved]] and [[Planar|planar]], such as for example [[YUY2]] and [[YV12]].

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'''Related Links'''
* [http://en.wikipedia.org/wiki/YUV YUV Color Model at Wikipedia]
* [http://www.fourcc.org/yuv.php YUV formats at FOURCC.org]

[[Category:Glossary]]

@@ Line 18: / Line 18: @@
 | '''[[YV16]]''' &diams;
 | planar
-| 4:2:2 (chroma shared between 2 pixels)
+| 4:2:2 (chroma shared between 2 horizontal pixels)
 |-
 | '''[[YUY2]]'''
 | interleaved
-| 4:2:2 (chroma shared between 2 pixels)
+| 4:2:2 (chroma shared between 2 horizontal pixels)
 |-
 | '''[[YV12]]'''
 | planar
-| 4:2:0 (chroma shared between 2x2 pixels)&nbsp;
+| 4:2:0 (chroma shared between 2 horizontal x 2 vertical pixels)&nbsp;
 |-
 | '''[[YV411]]''' &diams;
 | planar
-| 4:1:1 (chroma shared between 4 pixels)
+| 4:1:1 (chroma shared between 4 vertical pixels)
 |-
 | '''[[Y8]]''' &diams;

← Older revision		Revision as of 04:02, 30 January 2016
Line 4:		Line 4:

	Because of the gradual evolvement of the video transmission and broadcasting technology, there are today quite a few different YUV sub-formats, both [[Interleaved\|interleaved]] and [[Planar\|planar]], such as for example [[YUY2]] and [[YV12]].		Because of the gradual evolvement of the video transmission and broadcasting technology, there are today quite a few different YUV sub-formats, both [[Interleaved\|interleaved]] and [[Planar\|planar]], such as for example [[YUY2]] and [[YV12]].
		+
		+	The Avisynth YUV color formats are:
		+	:{\| class="wikitable"
		+	\|-
		+	! Color format
		+	! Image format
		+	! Chroma resolution
		+	\|-
		+	\| '''[[YV24]]''' &diams;
		+	\| [[Planar\|planar]]
		+	\| 4:4:4 (full chroma)
		+	\|-
		+	\| '''[[YV16]]''' &diams;
		+	\| planar
		+	\| 4:2:2 (chroma shared between 2 pixels)
		+	\|-
		+	\| '''[[YUY2]]'''
		+	\| interleaved
		+	\| 4:2:2 (chroma shared between 2 pixels)
		+	\|-
		+	\| '''[[YV12]]'''
		+	\| planar
		+	\| 4:2:0 (chroma shared between 2x2 pixels)
		+	\|-
		+	\| '''[[YV411]]''' &diams;
		+	\| planar
		+	\| 4:1:1 (chroma shared between 4 pixels)
		+	\|-
		+	\| '''[[Y8]]''' &diams;
		+	\| (both)
		+	\| 4:0:0 (no chroma but [[Clip_properties\|IsYUV]] returns ''true'')
		+	\|}
		+	:(&diams; = not supported in AviSynth version 2.58 or below)

	----		----

@@ Line 9: / Line 9: @@
 * [http://en.wikipedia.org/wiki/YUV YUV Color Model at Wikipedia]
 * [http://www.fourcc.org/yuv.php YUV formats at FOURCC.org]
 [[Category:Glossary]]