Reel.Deal: LMFlicker: add documentation

2020-07-07T18:50:46Z

LMFlicker: add documentation

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2015-11-08T01:19:21Z

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#REDIRECT [[External_filters#Luma_Equalization]]
{{FilterCat|External_filters|Restoration_filters|Luma_Equalization}}

← Older revision		Revision as of 18:50, 7 July 2020
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−	~~#REDIRECT [[External_filters#Luma_Equalization]]~~	+	{{FilterCat4\|External_filters\|Plugins\|Restoration_filters\|Luma_Equalization}}
−	{{~~FilterCat~~\|External_filters\|Restoration_filters\|Luma_Equalization}}	+	{{Filter3
		+	\|1={{Author/akupenguin}}
		+	\|2=v0.1
		+	\|3=[http://akuvian.org/src/avisynth/flicker/lmflicker-0.10.zip lmflicker-0.10.zip]
		+	\|4=Luma Equalization
		+	\|5=[http://www.gnu.org/licenses/gpl-2.0.txt GPLv2]
		+	\|6=}}
		+
		+	== Description ==
		+	[[LMFlicker]] is a filter intended to reduce flickering in some film/vhs transfers.
		+
		+	FieldFade is a similar concept, but applied on a per-field basis, to reduce combing in a video where fades were applied after telecine.
		+
		+
		+	Official homepage: http://akuvian.org/src/avisynth/flicker/
		+	<br>
		+	<br>
		+	== Requirements ==
		+	* [x86]: [[AviSynth+]] or [https://sourceforge.net/projects/avisynth2/ AviSynth 2.5.8 or greater]
		+	* Supported color formats: [[YV12]]
		+	<br>
		+
		+	== [[Script variables\|Syntax and Parameters]] ==
		+	<pre>
		+
		+	LMFlicker(clip, int startframe, int endframe, int frame, int lthresh,
		+	int cthresh, float scene, bool show, string log, int radius, int blur)
		+
		+	FieldFade(clip, int startframe, int endframe, int frame, int lthresh,
		+	int cthresh, float scene, bool show, string log, int field,
		+	bool chroma, bool affine)
		+
		+
		+	clip: (default=none)
		+	Input clip.
		+
		+	startframe, endframe: (default=-1)
		+	If specified, the filter will process only the frames between startframe
		+	and endframe (inclusive), and pass all others through unmodified.
		+	If only one of these is specified, the other is assumed to be the other end of the video.
		+
		+	frame: (default=-1)
		+	Like start/endframe, but filters only one frame.
		+
		+	lthresh: (default=20, max=255)
		+	cthresh: (default=20, max=255)
		+	When calculating the fade transform, ignore any pixels that differ from
		+	their neighbors by more than this much (luma and chroma are processed independently).
		+	In LMFlicker, this neighbor is temporal. In FieldFade, this neighbor is vertical.
		+
		+	scene: (default=0.6)
		+	If less than this fraction of all pixels pass lthresh and cthresh, then
		+	the frame is considered to be a scene change, and is not modified.
		+
		+	show: unimplemented
		+
		+	log: (default=none)
		+	print some statistics to a file
		+
		+	radius: (default=4, max=20)
		+	Look at this many neighbors when calculating the target brightness.
		+
		+	blur: (default=1)
		+	Run this many iterations of blur() before comparing frames, to reduce noise.
		+	(This affects only the analysis; it doesn't blur the output.)
		+
		+	field:
		+	Which field to modify when equalizing the two.
		+	0 => modify top field
		+	1 => modify bottom field
		+	2 => modify both, to meet in the middle (default)
		+
		+	chroma: (default=true)
		+	Decomb chroma too.
		+
		+	affine: (default=true)
		+	Search for an affine transform (scale and offset) of brightness,
		+	as opposed to just scale.
		+	</pre>
		+	<br>
		+	==Tips==
		+	<pre>
		+	For LMFlicker, you may want to tweak radius and blur.
		+	All other settings are purely optional and probably don't need to be changed.
		+	LMFlicker should be safe to apply to a whole movie, even if only some parts
		+	need to be deflickered.
		+
		+	Try FieldFade with no arguments.
		+	FieldFade probably has side-effects that I haven't discovered, so should
		+	probably only be applied to the sections that need it.
		+	Don't expect perfect results from FieldFade: I approximate fading as an affine
		+	transform, and that should be good enough. But if you trust the DVD masters to
		+	do the right thing, you wouldn't need this filter in the first place.
		+	</pre>
		+	<br>
		+
		+	== Examples ==
		+	LMFlicker with default settings:
		+	[[AviSource]]("blah.avi")
		+	LMFlicker()
		+
		+
		+	FieldFade with default settings:
		+	[[AviSource]]("blah.avi")
		+	FieldFade()
		+	<br>
		+	== Changelog ==
		+	Version Date(D/M/Y) Changes<br>
		+	v0.1 2004/10/08 - Initial release
		+	<br>
		+
		+	== Archived Downloads ==
		+	{\| class="wikitable" border="1"; width="400px"
		+	\|-
		+	!!width="100px"\| Version
		+	!!width="150px"\| Download
		+	!!width="150px"\| Mirror
		+	\|-
		+	!v0.1
		+	\|[http://akuvian.org/src/avisynth/flicker/lmflicker-0.10.zip lmflicker-0.10.zip]
		+	\|[https://web.archive.org/web/20200707183747if_/http://akuvian.org/src/avisynth/flicker/lmflicker-0.10.zip lmflicker-0.10.zip]
		+	\|}
		+	<br>
		+	== External Links ==
		+	<br>
		+	<br>
		+	-----------------------------------------------
		+	'''Back to [[External_filters#Luma_Equalization\|External Filters]] ←'''

LMFlicker - Revision history

Reel.Deal: LMFlicker: add documentation

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