YCbCr 4:2:0 - Revision history

Crybaby: add pixel formats category

2007-06-02T04:14:20Z

add pixel formats category

← Older revision		Revision as of 21:14, 1 June 2007
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	[[Category:YCbCr Formats]]		[[Category:YCbCr Formats]]
			[[Category:Pixel Formats]]

Ipse: typo fixed

2007-02-14T16:06:39Z

typo fixed

← Older revision		Revision as of 09:06, 14 February 2007
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	YCbCr 4:2:0 indicates a planar [[YCbCr]] colorspace where a 2x2 block of pixels in an image is represented by 4 Y samples, 1 for each pixel, but all 4 pixels share a Cb sample and a Cr sample.		YCbCr 4:2:0 indicates a planar [[YCbCr]] colorspace where a 2x2 block of pixels in an image is represented by 4 Y samples, 1 for each pixel, but all 4 pixels share a Cb sample and a Cr sample.

	YCbCr 4:2:0 can be transported within a general purpose container format. When the data is designated with a FourCC of I420 all of the Y data appears first, followed by the Cb data, then then Cr data. YV12 is the same with the order of the Cb and Cr planes ~~revered~~.		YCbCr 4:2:0 can be transported within a general purpose container format. When the data is designated with a FourCC of I420 all of the Y data appears first, followed by the Cb data, then then Cr data. YV12 is the same with the order of the Cb and Cr planes reversed.

	For trivia, the 12 in YV12 most likely refers to the number of bits needed to represent a single pixel. Since 6 bytes, or 48 bits represent 4 pixels, an average of 12 bits are required to represent a single pixel in this scheme.		For trivia, the 12 in YV12 most likely refers to the number of bits needed to represent a single pixel. Since 6 bytes, or 48 bits represent 4 pixels, an average of 12 bits are required to represent a single pixel in this scheme.

	[[Category:YCbCr Formats]]		[[Category:YCbCr Formats]]

Jhartmann: YUV 4:2:0 moved to YCbCr 4:2:0: YUV is alalog PAL, not digital media.

2006-09-17T13:46:43Z

YUV 4:2:0 moved to YCbCr 4:2:0: YUV is alalog PAL, not digital media.

← Older revision	Revision as of 06:46, 17 September 2006
(No difference)

Jhartmann at 13:46, 17 September 2006

2006-09-17T13:46:19Z

← Older revision		Revision as of 06:46, 17 September 2006
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	* FourCCs: I420, YV12		* FourCCs: I420, YV12
			(These FourCC names only reflect that YCbCr is often falsely mixed up with analog PAL's YUV color space.)

	~~YUV~~ 4:2:0 indicates a planar [[~~YUV~~]] colorspace where a 2x2 block of pixels in an image is represented by 4 Y samples, 1 for each pixel, but all 4 pixels share a U sample and a V sample.		YCbCr 4:2:0 indicates a planar [[YCbCr]] colorspace where a 2x2 block of pixels in an image is represented by 4 Y samples, 1 for each pixel, but all 4 pixels share a Cb sample and a Cr sample.

	~~YUV~~ 4:2:0 can be transported within a general purpose container format. When the data is designated with a FourCC of I420 all of the Y data appears first, followed by the U data, then then V data. YV12 is the same with the order of the U and V planes revered.		YCbCr 4:2:0 can be transported within a general purpose container format. When the data is designated with a FourCC of I420 all of the Y data appears first, followed by the Cb data, then then Cr data. YV12 is the same with the order of the Cb and Cr planes revered.

	For trivia, the 12 in YV12 most likely refers to the number of bits needed to represent a single pixel. Since 6 bytes, or 48 bits represent 4 pixels, an average of 12 bits are required to represent a single pixel in this scheme.		For trivia, the 12 in YV12 most likely refers to the number of bits needed to represent a single pixel. Since 6 bytes, or 48 bits represent 4 pixels, an average of 12 bits are required to represent a single pixel in this scheme.

	[[Category:~~YUV~~ Formats]]		[[Category:YCbCr Formats]]

Multimedia Mike: mention FourCCs and coding formats

2006-06-03T21:22:44Z

mention FourCCs and coding formats

← Older revision		Revision as of 14:22, 3 June 2006
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			* FourCCs: I420, YV12

	YUV 4:2:0 indicates a planar [[YUV]] colorspace where a 2x2 block of pixels in an image is represented by 4 Y samples, 1 for each pixel, but all 4 pixels share a U sample and a V sample.		YUV 4:2:0 indicates a planar [[YUV]] colorspace where a 2x2 block of pixels in an image is represented by 4 Y samples, 1 for each pixel, but all 4 pixels share a U sample and a V sample.

			YUV 4:2:0 can be transported within a general purpose container format. When the data is designated with a FourCC of I420 all of the Y data appears first, followed by the U data, then then V data. YV12 is the same with the order of the U and V planes revered.

			For trivia, the 12 in YV12 most likely refers to the number of bits needed to represent a single pixel. Since 6 bytes, or 48 bits represent 4 pixels, an average of 12 bits are required to represent a single pixel in this scheme.

	[[Category:YUV Formats]]		[[Category:YUV Formats]]

Multimedia Mike at 20:52, 3 June 2006

2006-06-03T20:52:27Z

New page

YUV 4:2:0 indicates a planar [[YUV]] colorspace where a 2x2 block of pixels in an image is represented by 4 Y samples, 1 for each pixel, but all 4 pixels share a U sample and a V sample.

[[Category:YUV Formats]]