External filters

From Avisynth

Rough classification of filters (in progress).

To make it easier for people to to find what they need here, the list includes both script function filters (see Import) and plugin filters (see Plugins).

Most scripts will apply filters in the following order:

1. Create an AviSynth clip from a video file.
2. Correct or remove any unwanted features in the video (e.g. dot crawl, field blending or telecine).
3. Denoise the video (optional).
4. Manipulate the video into the desired format (by e.g. changing the size and frame rate).

AviSynth filters have been classified under these four basic tasks, with a fifth category for filters that fall outside this scheme.

Contents 1 Source Filters 2 Restoration Filters 2.1 Anti-aliasing 2.2 Chroma correction 2.3 Deblocking 2.4 Dehaloing 2.5 Deringing 2.6 Deinterlacing 2.7 Fieldblending and Frameblending removal 2.8 Film Damage correction 2.9 Frequency Interference removal 2.10 IVTC & Decimation 2.11 Ghost Removal 2.12 Logo removal 2.13 Luma Equalisation 2.14 Rainbow & Dot Crawl removal 2.15 Stabilisation 3 Denoisers 3.1 Spatial Denoisers 3.2 Temporal Denoisers 3.3 Spatio-Temporal Denoisers 4 Adjustment Filters 4.1 Field Order 4.2 Frame Rate Conversion 4.3 Levels and Chroma 4.4 Linedarkening 4.5 Sharpeners 4.6 Resizers 4.7 Effects 4.8 Subtitling 4.9 Colourspace Conversion 5 Other Filters 5.1 Debug Filters 5.2 Support filters 5.3 Meta-Filters 5.4 Multipurpose Filters 5.5 Import Filters 5.6 Export Filters 6 Audio Filters 7 As Yet Unclassified

[edit] Source Filters

Filter	Description	Color format	Plugin / Script
DGAVCDecode	AVC (H.264) decoder plug-in.	YV12	Plugin
DGDecode	MPEG-1/2 decoder plug-in.	YV12, YUY2, RGB24, I420	Plugin
DVInfo	Grabs the timestamp and recording date info from a DV-AVI.	N/A	Plugin
DVTimeStampEx	Shows a DV timestamp information over a DV clip.	N/A	Plugin
DVUtilities	?	?	Plugin
FFmpegSource	Decodes all ffmpeg supported video formats with frame accurate seeking in AVI, MKV and MP4.	RGB, YUY2, I420	Plugin
ImageSequence	Plugin to open image sequences - jpegs (.JPG) or targas (.TGA)	?	Plugin
Immaavs	ImageMagick based picture reader. Supported Formats: bmp, dds, dpx, gif, jng, jpg, jp2, mng, pbm, pcx, pgm, png, pnm, ppm, psd, tga, tiff, wmf; Animated: gif, mng; Alpha Channel: gif, jng, png, tiff; Raw digital photos: 3fr, arw, crw, cr2, dng, erf, kdc, mrw, nef, orf, pef, raf, x3f.	RGB32	Plugin
IUF	?	?	Plugin
EvilMPASource	A mp1/mp2/mp3 audio decoder plugin that directly opens MPEG files	N/A	Plugin
MPASource	A mp1/mp2/mp3 audio decoder plugin	N/A	Plugin
MPEGDecoder	Load VOB/MPEG-2 ES,PS,TS/MPEG-1 files directly (deprecated)	YV12	Plugin
MPEG2Dec3	Parses MPEG-2 files and supports deblocking/deringing.	YV12	Plugin
NicAudio	Audio Plugins for Audio: AC3/DTS/MPA/LPCM.	N/A	Plugin
OmfSource	Opens the AVID OMF file format (video only, and only works with captured files).	YUY2, YV12	Plugin
QTSource	Quicktime Import/Export Filter using an existing installation of Quicktime 6/7	RGB32, RGB24, YUY2	Plugin
RawSource	This filter loads raw video data.	?	Plugin

[edit] Restoration Filters

These remove effects or artefacts introduced (deliberately or accidentally) into the source video. Denoisers are classified separately.

[edit] Anti-aliasing

Filter	Description	Color format	Plugin / Script
AAA	Anti-aliasing filter designed for anime.	YV12	Script
AntiAliasing	Anti-aliasing script for, well, anti-aliasing.	YV12	Script
SangNom	A single field deinterlacer, can also be used for anti-aliasing.	YV12	Plugin
SAA	A simple anti-aliasing script.	YV12	Script
TIsophote	A level-set (isophote) smoothing filter, see [1]	YV12	Plugin

[edit] Chroma correction

Filter	Description	Color format	Plugin / Script
BT709ToBT601	Convert from BT.709 (HDTV) to BT.601 (SDTV) colorimetry.	YV12	Plugin
ChromaShift	This filter can shift chrominance information to correct improper colour registration. See [2]	YV12, YUY2, RGB	Plugin
ColorMatrix	Fixes colorspace conversions carried out using incorrect coefficients. See [3] or [4]	YV12, YUY2	Plugin
FixChromaBleeding	Fixes area of chroma bleeding by shifting the chroma and lowering the saturation in the affected areas. See [5]	YV12	Script

[edit] Deblocking

Filter	Description	Color format	Plugin / Script
DeBlock	Deblocking filter, see [6], [7]	YV12, YUY2	Plugin
Deblock_QED	Provide 8x8 deblocking sensitive to the amount of blocking in the source.	YV12	Script
FunkyDeBlock	Deblocking script based on BlindPP and high/lowpass separation.	YV12	Script
MDeblock	Plugin for removing block artifacts, see [8]	YV12	Plugin
SmoothD	Filter to deblock frames while keeping high frequency detail, see [9]	YV12	Plugin

[edit] Dehaloing

Filter	Description	Color format	Plugin / Script
BlindDeHalo	Filter to remove edge enhancement artefacts.	YV12	Script
BlindDeHalo2	Filter to remove edge enhancement artefacts.	YV12	Script
BlindDeHalo3	Filter to remove edge enhancement artefacts.	YV12	Script
DeHalo_alpha	See [10]	YV12	Script

[edit] Deringing

Filter	Description	Color format	Plugin / Script
BlindDeRing			Plugin
HQDering	Applies deringing by using a smart smoother near edges (where ringing occurs) only. See [11] for details.		Script

[edit] Deinterlacing

Filter	Description	Color format	Plugin / Script
Area	A port of Gunnar Thalin's VirtualDub filter "Deinterlace - area based" to AviSynth.	RGB32	Plugin
BlendBob	Filter designed for use after a smart bob; blends every other frame with the closest matching neighbouring frame.		Plugin [12]
DGBob	This filter splits each field of the source into its own frame and then adaptively creates the missing lines.	RGB, YV12, YUY2	Plugin [13]
FieldDeinterlace	by neuron2 [14]		Plugin
GreedyHMA	by trbarry [15]		Plugin
InterpolationBob	see [16]		Plugin
KernelDeint	by neuron2 [17]		Plugin
LeakKernelBob	by Kurt Prünner [18]		Plugin
LeakKernelDeint	by Kurt Prünner [19] and [20]		Plugin
MCBob	MCBob + EEDI2 [21] MCBob + NEEDI [22]		Script
MVBob	by scharfis_brain [23] and [24]		Script
Securebob	type=2 or type=3		Plugin
SecureDeint	(part of MVbob) [25]		Plugin
SmoothDeinterlace	by Gunnar Thalin [26]		Plugin
TDeint	by tritical [27] TDeint + EEDI2 TDeint + tmm TDeint + tmm + eedi2		Plugin
TomsMoComp	A filter that uses motion compensation and adaptive processing to deinterlace video sources.	YV12, YUY2	Plugin
Yadif	by Fizick [28]		Plugin
Yadifmod	by tritical [29]		Plugin

[edit] Fieldblending and Frameblending removal

Filter	Description	Color format	Plugin / Script
c_deblend			Plugin
Deblend			Plugin
mrestore	Uses conditional frame evaluation to undo standard conversions with blends	?	Script
RemoveBlend			Plugin
Restore24			Plugin
RestoreFPS			Plugin
Unblend			Plugin
FixBlendIVTC	A blend replacing/frame restoring function for doubleblends caused by blend-deinterlacing of telecined sources.	?	Script

[edit] Film Damage correction

Filter	Description	Color format	Plugin / Script
UnDot	UnDot is a simple median filter for removing dots, that is stray orphan pixels and mosquito noise. It basically just clips each pixel value to stay within min and max of its eight surrounding neighbours.		Plugin
Descratch			Plugin
Despot			Plugin
RemoveDirt			Plugin

[edit] Frequency Interference removal

Filter	Description	Color format	Plugin / Script
DeFreq			Plugin
FanFilter			Plugin

[edit] IVTC & Decimation

Filter	Description	Color format	Plugin / Script
BruteIVTC			Plugin
FDecimate			Plugin
GreedyHMA			Plugin
IT			Plugin
MultiDecimate			Plugin
ReMatch			Plugin
RePal			Plugin
SmartDecimate			Plugin
Telecide (Decomb package)			Plugin
TIVTC			Plugin
TPRIVTC			Plugin
UnComb			Plugin

[edit] Ghost Removal

Filter	Description	Color format	Plugin / Script
FixVHSOversharp			Plugin
GhostBuster			Plugin

[edit] Logo removal

Filter	Description	Color format	Plugin / Script
DeKafka	This fairly simple filter washes away those annoying bugs from broadcast clips.		Script
DeLogo			Plugin
X-Logo			Plugin
rm_logo			Script
InpaintFunc			Script

[edit] Luma Equalisation

Filter	Description	Color format	Plugin / Script
Antiflicker			Plugin
EquLines			Plugin

[edit] Rainbow & Dot Crawl removal

Filter	Description	Color format	Plugin / Script
BiFrost			Plugin
Dedot			Plugin
DeRainbow			Plugin
DFMDeRainbow	Creates mask to process only edges; rainbows are removed by hitting chroma planes with two passes of FluxSmooth (hence "Double-Flux-Mask").	YV12, YUY2	Script
GuavaComb			Plugin
LUTDeRainbow	Purely temporal; only targets pixels for derainbowing if chroma is fluctuating and (optionally) luma is not.	YV12 only	Script
mfRainbow	Derainbows according to the same principle as AntiFlicker.		Script
SmartSSIQ			Plugin
SSIQ			Plugin
TComb			Plugin

[edit] Stabilisation

Filter	Description	Color format	Plugin / Script
DePan			Plugin
GenMotion			Plugin

[edit] Denoisers

(need subclassification)

Filter	Description	Color format	Plugin / Script
AdaptiveMedian			Plugin
Atc			Plugin
ColourizeSmooth			Plugin
ConditionalTemporalMedian			Plugin
DCTFun4b			Plugin
DeGrainMedian			Plugin
DeNoise			Plugin
Dfttest	[30]		Plugin
DNR2			Plugin
ExtendedBilateral			Plugin
MedianBlur			Plugin
PixieDustPP			Plugin
Removegrain			Plugin
SmartSmoother			Plugin
SmootherHiQ			Plugin
SSIQ			Plugin
UberSmooth (Bloated)			Plugin
UberSmooth (DCTFun)			Plugin
UberSmooth (Deen)	[31]		Plugin
VariableBlur			Plugin

[edit] Spatial Denoisers

Filter	Description	Color format	Plugin / Script
_2DCleanYUY2			Plugin
DctFilter			Plugin
eDeen			Plugin
Msmooth			Plugin
TBilateral	see [32]		Plugin
VagueDenoiser			Plugin

[edit] Temporal Denoisers

Filter	Description	Color format	Plugin / Script
CNR2	see [33]		Plugin
Fluxsmooth			Plugin
GrapeSmoother			Plugin
TemporalCleaner			Plugin
TTempSmooth	see [34]		Plugin
Temporal Degrain			Script

[edit] Spatio-Temporal Denoisers

Filter	Description	Color format	Plugin / Script
Convolution3D			Plugin
Deen			Plugin
FFT3DFilter	A 3D Frequency Domain filter - gives strong denoising and moderate sharpening	YV12, YUY2	Plugin [35]
FFT3Dgpu	[36]		Plugin
FrFun3b			Plugin
FrFun7			Plugin
HQdn3d	see [37]		Plugin
MC_Spuds			Script
MipSmooth			Plugin
NoMoSmooth			Plugin
PeachSmoother			Plugin
STMedianFilter			Plugin

[edit] Adjustment Filters

[edit] Field Order

Filter	Description	Color format	Plugin / Script
PFR			Plugin
ReverseFieldDominance			Plugin

[edit] Frame Rate Conversion

Filter	Description	Color format	Plugin / Script
FrameDbl			Plugin
SalFPS3			Script
MotionProtectedFPS (Motion)			Script
MVFlowFPS(2) (MVTools)			Plugin

[edit] Levels and Chroma

Filter	Description	Color format	Plugin / Script
ColourLike			Plugin
ExpSat			Plugin
FlimsYlevels	Luma adjustment function to give a more "film-ish" look. (Based on Didée's Ylevels).	YV12	Script
GiCocu			Plugin
Hdragc [38]			Plugin
HistogramAdjust			Plugin
TweakColor			Plugin
Tweak3			Plugin
Ylevels	A simple replacement for Avisynth's internal Levels command, with a few neat differences.	YV12	Script

[edit] Linedarkening

Filter	Description	Color format	Plugin / Script
FastLineDarken			Script
LimitedDarken			Plugin

[edit] Sharpeners

Filter	Description	Color format	Plugin / Script
aSharp	see [39] and [40]		Plugin
aWarpSharp	see [41]		Plugin
LimitedSharpen			Script
MSharpen			Plugin
SeeSaw			Script
SSXSharpen			Plugin
TUnsharp			Plugin
Unfilter	see [42]		Plugin
Unsharpmask			Plugin
WarpSharp Package	see [43]		Plugin
WarpSharp YV12	see [44]		Plugin
XSharpen	see [45]		Plugin

[edit] Resizers

Filter	Description	Color format	Plugin / Script
EdiUpsizer	see [46]		Plugin
EEDI2	see normal Multi-threaded Multi-threaded 64-bit		Plugin
FastEDIUpsizer	[47]		Plugin
HybridResize			Plugin
NNEDI	see [48]		Plugin
ResizeKAR	Resizes clip keeping the aspect ratio.		Script
Scanlines			Plugin
SimpleResize			Plugin
YV12InterlacedReduceBy2			Plugin
Zoom	Zoom, Pan & Rotate Clip. Adds alpha layer to clip.	RGB32	Plugin

[edit] Effects

Filter	Description	Color format	Plugin / Script
AddGrain			Plugin
AddGrainC			Plugin
AddNoise			Plugin
AviShader			Plugin
EffectsMany			Plugin
GNoise			Plugin
HollywoodSQ			Plugin
KenBurnsEffect	Given clip, zooms and pans clip. See [49]	RGB32	Script
NoiseGenerator			Plugin
TransAll	Gradually transform from Clip 1 to Clip 2, Audio fades as well. Around 150 distinct transitions can be created with this plugin.	RGB32, RGB24, YUY2, YV12	Plugin
Transition(1)			Plugin
Transition(2)			Plugin

[edit] Subtitling

Filter	Description	Color format	Plugin / Script
SubAA	Single Subtitle with Anti-aliasing.		Script
TextSub (VSFilter)	Supported Subtitle Formats: VOBsub (.sub/.idx), SubStation Alpha/Advanced SubStation Alpha (.ssa/.ass), SubRip (.srt), MicroDVD (.sub), SAMI (.smi), PowerDivX (.psb), Universal Subtitle Format (.usf), Structured Subtitle Format (.ssf). See [50]		Plugin

[edit] Colourspace Conversion

Filter	Description	Color format	Plugin / Script
AutoYUY2			Plugin

[edit] Other Filters

[edit] Debug Filters

Filter	Description	Color format	Plugin / Script
AVInfo			Plugin
Avisynth Monitor			Plugin
AvsTimer			Plugin
DumpPixelValues			Plugin
Framenumber			Plugin
Grid			Plugin
Kronos			Plugin
MonitorFilter			Plugin
PixelInfo			Plugin
ShowPixelValues			Plugin
SubtitleEx			Plugin
TMonitor			Plugin
ViewFields/UnViewFields			Plugin

[edit] Support filters

These filters are primarily designed to augment the creation of custom script-based filters.

Filter	Description	Color format	Plugin / Script
CheckMask			Plugin
Convolution3D			Plugin
MaskTools	This plugin provides tools for the creation, enhancement and manipulation of masks for each component (Y, U, V) of the YV12 color space. This version is now deprecated, use MaskTools2 instead for new scripts.	YV12	Plugin
MaskTools2	This plugin provides tools for the creation, enhancement and manipulation of masks for each component (Y, U, V) of the YV12 color space.	YV12	Plugin
MergeClips			Plugin
PlaneMinMax			Plugin

[edit] Meta-Filters

These filters are primarily designed to be used with other filters, to restrict or augment their effect.

Filter	Description	Color format	Plugin / Script
Motion	see [51]		Plugin
MT	MT is a filter that enables other filters to run multithreaded. This should hopefully speed up processing on hyperthreaded/multicore processors or multiprocessor systems.	Any	Plugin
MVTools	MVTools provides filters for estimation and compensation of objects' motion in video clips. Motion compensation may be used for strong temporal denoising, advanced framerate conversions, image restoration and other tasks. (see [52])		Plugin

[edit] Multipurpose Filters

Filter	Description	Color format	Plugin / Script
Camembert	Camembert provides HQDering's functionality with additional background enhancement.	YV12	Script
iiP	Integrated Image Processor performs basic denoising and sharpening excluding already hard edges to avoid oversharpening; this should give the best relative compressibility for any level of detail enhancement. Its main purpose is upconversion from DVD resolutions to (pseudo-) HDTV resolutions. It aims at natural sources only. For animated/cartoon content, one is probably better of with mfToon and SharpResize.	YV12	Script
SeeSaw	SeeSaw uses a balance of denoising and sharpening to enhance a clip. The aim is to enhance weak detail without oversharpening or creating jaggies on strong detail, and produce a result that is temporally stable without detail shimmering.	YV12	Script
mfToon	mfToon darkens cartoon edges. In default operation, it performs line darkening, Xsharpening, and warp sharpening.	YV12	Script

[edit] Import Filters

These filters are used to import filters written for other audio and video packages.

Filter	Description	Color format	Plugin / Script
FreeFrame	Allows freeframe filters (mostly effects) to be used directly in avisynth.	RGB24, RGB32	Plugin
LoadVFApiPlugin			Plugin

[edit] Export Filters

These filters are used to export things from an avs file.

Filter	Description	Color format	Plugin / Script
ImageMagick	All of the supported input formats except wmf and raw digital photos are supported in ImmaWrite. For the time being it writes only the first frame to your hard drive.		Plugin
twriteavi	Serve AVI file to program requesting it as well as write an avi file. Useful for speeding up 2 pass encodes at the cost of hard drive space.		Plugin

[edit] Audio Filters

Filter	Description	Color format	Plugin / Script
AudioGraph	Displays the audio waveform superimposed on the video. Intended to help with editing rather than for final output. Useful for finding specific dialog or sound, and for checking A/V sync.	YUY2, RGB24, RGB32	Plugin
BeFa			Plugin
Sox Audio Effect Filter			Plugin
ViewAudio			Plugin

[edit] As Yet Unclassified

Filter	Description	Color format	Plugin / Script
Adjust	see [53]		Plugin
AutoCrop	Automatically crops black borders (Letterbox, Pillar box, Windowbox) from a clip. Operates in preview mode (overlays the recommended cropping information) or cropping mode. Can also ensure width and height are multiples of specified numbers.		Plugin
Average			Plugin
BorderControl	see [54]		Plugin
BeforeAfter			Plugin
BeforeAfterDiff			Plugin
BeforeAfterLine			Plugin
Blockbuster	see [55]		Plugin
Call	see [56]		Plugin
Colorit	see [57]		Plugin
CutFrames	Cut a range of frames from a single a/v clip. Opposite of Trim with extras.		Script
DCT	see [58]		Plugin
DeBlot	see [59]		Plugin
Dup	a robust duplicate frame detector. a frame that is determined to be close enough to its predecessor to be considered a duplicate will be replaced by a copy of the predecessor. This can significantly reduce the size of encoded clips with virtually no visual effect. provides the capability to replace frames with a blend of all the duplicates, providing a valuable noise reduction. Filter by Donald A. Graft.		Plugin
DeDup	see [60]		Plugin
DeLogo			Plugin
FillMargins	see [61]		Plugin
GetDups	see [62]		Plugin
GetSystemEnv			Plugin
GraMaMa	see [63]		Plugin
GradFun2DB	see [64]		Plugin
LBKiller			Plugin
LTSMC			Plugin
MCNR_simple2			Plugin
NeuralNet			Plugin
PseudoColor	see [65]		Plugin
Reform	see [66]		Plugin
RGBManipulate	see [67]		Plugin
SceneChangeLavc	see [68]		Plugin
SlopeBend			Plugin
Soothe			Plugin
UnSmooth			Plugin
VinVerse	An effective Function against (residual) combing, by Didée. Useful after deinterlaceing.	YV12, YUY2	Plugin / Script
WaterShed	see [69]		Plugin
YV12toRGB24HQ			Plugin