Documentation:Modules/bluescreen - Revision history

DoesItReallyMatter: Repair external link × 2, +sc, expand, misc.

2019-05-31T08:15:51Z

Repair external link × 2, +sc, expand, misc.

← Older revision		Revision as of 08:15, 31 May 2019
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	{{Mosaic framework}}		{{Mosaic framework}}
	{{Module\|name=bluescreen\|type=Video filter\|first_version=0.9.0\|description=~~change~~ the video's alpha channel}}		{{Module\|name=bluescreen\|type=Video filter\|first_version=0.9.0\|description=Change the video's alpha channel\|sc=bluescreen}}

	This filter can be used in the mosaic framework to set a video's alpha channel (or transparency) based on a pixel's color. This is also known as [[wikipedia:green screen\|green screen]] or chroma key blending and can be used to create effects like on most weather channels.		This filter can be used in the mosaic framework to set a video's alpha channel (or transparency) based on a pixel's color. This is also known as [[wikipedia:green screen\|green screen]] or chroma key blending and can be used to create effects like on most weather channels.
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	\|name=bluescreen-u		\|name=bluescreen-u
	\|value=integer		\|value=integer
			\|min=0
			\|max=255
	\|default=120		\|default=120
	\|description=U chroma component ~~(0 to 255)~~		\|description=U chroma component.
	}}		}}
	{{Option		{{Option
	\|name=bluescreen-v		\|name=bluescreen-v
	\|value=integer		\|value=integer
			\|min=0
			\|max=255
	\|default=90		\|default=90
	\|description=V chroma component ~~(0 to 255)~~		\|description=V chroma component.
	}}		}}
	{{Option		{{Option
	\|name=bluescreen-ut		\|name=bluescreen-ut
	\|value=integer		\|value=integer
			\|min=0
			\|max=255
	\|default=17		\|default=17
	\|description=U ~~chroma component threshold (0 to 255)~~		\|description=Tolerance of the bluescreen blender on color variations for the U plane. A value between 10 and 20 seems sensible.
	}}		}}
	{{Option		{{Option
	\|name=bluescreen-vt		\|name=bluescreen-vt
	\|value=integer		\|value=integer
			\|min=0
			\|max=255
	\|default=17		\|default=17
	\|description=V ~~chroma component threshold (0 to 255)~~		\|description=Tolerance of the bluescreen blender on color variations for the V plane. A value between 10 and 20 seems sensible.
	}}		}}

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	control channel0 play		control channel0 play

	Have a look at http://people.videolan.org/~dionoea/bluescreen2.mpg for an example of the VLC bluescreen filter. The overlay video is http://people.videolan.org/~dionoea/rushfondvert.avi and features someone with a mask in front of a green background. The bluescreen module's default values are adjusted to remove the background from this video. For other videos you should use your favorite color editing tool to find out the appropriate U and V values.		Have a look at [https://web.archive.org/web/20060819104251/http://people.videolan.org/~dionoea/bluescreen2.mpg people.videolan.org/~dionoea/bluescreen2.mpg (archived)] for an example of the VLC bluescreen filter. The overlay video is [https://web.archive.org/web/20061205222657/http://people.videolan.org/~dionoea/rushfondvert.avi rushfondvert.avi (archived)] and features someone with a mask in front of a green background. The bluescreen module's default values are adjusted to remove the background from this video. For other videos you should use your favorite color editing tool to find out the appropriate U and V values.

	== Another example ==		== Another example ==

DoesItReallyMatter: Use Template:Mosaic framework, misc.

2019-05-31T08:09:04Z

Use Template:Mosaic framework, misc.

← Older revision		Revision as of 08:09, 31 May 2019
Line 1:		Line 1:
			{{Mosaic framework}}
	{{Module\|name=bluescreen\|type=Video filter\|first_version=0.9.0\|description=change the video's alpha channel}}		{{Module\|name=bluescreen\|type=Video filter\|first_version=0.9.0\|description=change the video's alpha channel}}

	This filter can be used in the mosaic framework to set a video's alpha channel (or transparency) based on a pixel's color. This is also known as green screen or chroma key blending and can be used to create effects like on most weather channels.		This filter can be used in the mosaic framework to set a video's alpha channel (or transparency) based on a pixel's color. This is also known as [[wikipedia:green screen\|green screen]] or chroma key blending and can be used to create effects like on most weather channels.

	== Options ==		== Options ==
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	\|description=U chroma component (0 to 255)		\|description=U chroma component (0 to 255)
	}}		}}

	{{Option		{{Option
	\|name=bluescreen-v		\|name=bluescreen-v
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	\|description=V chroma component (0 to 255)		\|description=V chroma component (0 to 255)
	}}		}}

	{{Option		{{Option
	\|name=bluescreen-ut		\|name=bluescreen-ut
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	\|description=U chroma component threshold (0 to 255)		\|description=U chroma component threshold (0 to 255)
	}}		}}

	{{Option		{{Option
	\|name=bluescreen-vt		\|name=bluescreen-vt
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	control channel0 play		control channel0 play

			== Source code ==
			* {{VLCSourceFile\|modules/video_filter/bluescreen.c}}

	== See also ==		== See also ==
	* [[~~Documentation:Modules/mosaic]]~~		* [[YUV]]
	* [[Documentation:Modules/mosaic-bridge]]
	* http://en.wikipedia.org/wiki/YUV

	{{Documentation footer}}		{{Documentation footer}}

Corbax at 10:03, 3 October 2013

2013-10-03T10:03:44Z

← Older revision		Revision as of 10:03, 3 October 2013
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	* http://en.wikipedia.org/wiki/YUV		* http://en.wikipedia.org/wiki/YUV

	{{Documentation}}		{{Documentation footer}}

VLC help at 16:01, 29 January 2012

2012-01-29T16:01:28Z

← Older revision		Revision as of 16:01, 29 January 2012
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	setup channel0 input rushfondvert.avi		setup channel0 input rushfondvert.avi
	setup channel0 output #duplicate{dst=mosaic-bridge{height=270,width=360,chroma=YUVA,vfilter=bluescreen},select=video}:display		setup channel0 output #duplicate{dst=mosaic-bridge{height=270,width=360,chroma=YUVA,vfilter=bluescreen},select=video}:display

	new background broadcast enabled		new background broadcast enabled
	setup background input file:///mire.jpg		setup background input file:///mire.jpg

	control background play		control background play
	control channel0 play		control channel0 play

VLC help at 16:00, 29 January 2012

2012-01-29T16:00:44Z

← Older revision		Revision as of 16:00, 29 January 2012
Line 48:		Line 48:

	Have a look at http://people.videolan.org/~dionoea/bluescreen2.mpg for an example of the VLC bluescreen filter. The overlay video is http://people.videolan.org/~dionoea/rushfondvert.avi and features someone with a mask in front of a green background. The bluescreen module's default values are adjusted to remove the background from this video. For other videos you should use your favorite color editing tool to find out the appropriate U and V values.		Have a look at http://people.videolan.org/~dionoea/bluescreen2.mpg for an example of the VLC bluescreen filter. The overlay video is http://people.videolan.org/~dionoea/rushfondvert.avi and features someone with a mask in front of a green background. The bluescreen module's default values are adjusted to remove the background from this video. For other videos you should use your favorite color editing tool to find out the appropriate U and V values.

			== Another example ==
			Tested with VLC 2.0.0

			new channel0 broadcast enabled
			setup channel0 input rushfondvert.avi
			setup channel0 output #duplicate{dst=mosaic-bridge{height=270,width=360,chroma=YUVA,vfilter=bluescreen},select=video}:display

			new background broadcast enabled
			setup background input file:///mire.jpg

			control background play
			control channel0 play


	== See also ==		== See also ==

Vangloria at 02:04, 3 November 2009

2009-11-03T02:04:37Z

← Older revision		Revision as of 02:04, 3 November 2009
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	== Example ==		== Example ==
	% '''vlc -vvv --vlm-conf mosaic.vlm --mosaic-keep-picture ~~\'''~~		% '''vlc -vvv --vlm-conf mosaic.vlm --mosaic-keep-picture --sub-filter mosaic'''
	~~'''~~--sub-filter mosaic'''

	And the vlm config:		And the vlm config:

Vangloria: cleaned up options --no-audio, -I telnet --color

2009-11-03T02:04:07Z

cleaned up options --no-audio, -I telnet --color

← Older revision		Revision as of 02:04, 3 November 2009
Line 33:		Line 33:

	== Example ==		== Example ==
	% '''vlc ~~-I telnet --color~~ -vvv --vlm-conf mosaic.vlm --mosaic-keep-picture \'''		% '''vlc -vvv --vlm-conf mosaic.vlm --mosaic-keep-picture \'''
	'''~~--no-audio~~ --sub-filter mosaic'''		'''--sub-filter mosaic'''

	And the vlm config:		And the vlm config:

Dionoea at 15:21, 22 January 2008

2008-01-22T15:21:08Z

← Older revision		Revision as of 15:21, 22 January 2008
Line 54:		Line 54:
	* [[Documentation:Modules/mosaic-bridge]]		* [[Documentation:Modules/mosaic-bridge]]
	* http://en.wikipedia.org/wiki/YUV		* http://en.wikipedia.org/wiki/YUV

			{{Documentation}}

Dionoea at 13:05, 22 January 2008

2008-01-22T13:05:15Z

← Older revision		Revision as of 13:05, 22 January 2008
Line 3:		Line 3:
	This filter can be used in the mosaic framework to set a video's alpha channel (or transparency) based on a pixel's color. This is also known as green screen or chroma key blending and can be used to create effects like on most weather channels.		This filter can be used in the mosaic framework to set a video's alpha channel (or transparency) based on a pixel's color. This is also known as green screen or chroma key blending and can be used to create effects like on most weather channels.

			== Options ==
	{{Option		{{Option
	\|name=bluescreen-u		\|name=bluescreen-u
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	}}		}}

	Example ~~use:~~		== Example ==
	% '''vlc -I telnet --color -vvv --vlm-conf mosaic.vlm --mosaic-keep-picture \'''		% '''vlc -I telnet --color -vvv --vlm-conf mosaic.vlm --mosaic-keep-picture \'''
	'''--no-audio --sub-filter mosaic'''		'''--no-audio --sub-filter mosaic'''
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	Have a look at http://people.videolan.org/~dionoea/bluescreen2.mpg for an example of the VLC bluescreen filter. The overlay video is http://people.videolan.org/~dionoea/rushfondvert.avi and features someone with a mask in front of a green background. The bluescreen module's default values are adjusted to remove the background from this video. For other videos you should use your favorite color editing tool to find out the appropriate U and V values.		Have a look at http://people.videolan.org/~dionoea/bluescreen2.mpg for an example of the VLC bluescreen filter. The overlay video is http://people.videolan.org/~dionoea/rushfondvert.avi and features someone with a mask in front of a green background. The bluescreen module's default values are adjusted to remove the background from this video. For other videos you should use your favorite color editing tool to find out the appropriate U and V values.

	See also:		== See also ==
	* [[Documentation:Modules/mosaic]]		* [[Documentation:Modules/mosaic]]
	* [[Documentation:Modules/mosaic-bridge]]		* [[Documentation:Modules/mosaic-bridge]]
	* http://en.wikipedia.org/wiki/YUV		* http://en.wikipedia.org/wiki/YUV

Dionoea at 12:37, 22 January 2008

2008-01-22T12:37:54Z

← Older revision		Revision as of 12:37, 22 January 2008
Line 39:		Line 39:
	new channel0 broadcast enabled		new channel0 broadcast enabled
	setup channel0 input rushfondvert.avi		setup channel0 input rushfondvert.avi
	setup channel0 output #duplicate{dst=mosaic-bridge{id=~~0,height=270,width=360~~,vfilter=bluescreen},select=video}		setup channel0 output #duplicate{dst=mosaic-bridge{chroma=YUVA,vfilter=bluescreen},select=video}

	new background broadcast enabled		new background broadcast enabled