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