Sansgrip Filters: Which Filters are Best for What?

[miksmith]

Having just started using avs scripts to do the file prediction (using KVCD Predictor) I've also started tinkering with the (many!) filters available. There seem to be a myriad that people use and I was wondering if there was any broad consesus about what to use when?? In my case this would be mainly for 16:9 and 4:3 DVD movies.

I've seen people using

Blockbuster - remove blockiness in low light areaas.
Sampler - sample frames from a clip (for the file prediction)
FluxSmooth - spatio-temporal smoothing of fluctuations
Gripfit - GripCrop replaces Crop, GripSize replaces BilinearResize
LegalClip - clipping levels to within CCIR-601 range (for chroma and luminence)
SpaceDust - reduces noise
Temporal Cleaner -if the difference between previous pixel and current pixel is below a blur threshold then replace the current pixel by the verage between previous and current pixel else keep current pixel

is it worth using *all* these in an encode or generally some of them??

I currently have this order for using them, but what options are there:

LegalClip()
GripCrop( width=352, height=288, overscan=1 )
GripSize()
SpaceDust()
TemporalCleaner()
Blockbuster(method="noise", variance=.7, seed=1)
Fluxsmooth()
GripBorders()
LegalClip()


Cheers for the pointers

mike

[hachemoncourt]

Hi miksmith,

Here is some comments :

Quote:

GripCrop( width=352, height=288, overscan=1 )

with the DVD sources (16/9) dont forget to precise source_anamorphic=true
with a 16/9 TV you have the choice between anamorphic (dest_anamorphic=true) or not (by default)

Quote:

GripSize replaces BilinearResize

You can specify the resizer i.e : GripSize(resizer="yourChoice")
with yourChoice = {LanczosResize,biCubicResize,bilinearResize}

Quote:

SpaceDust()
TemporalCleaner()
Blockbuster(method="noise", variance=.7, seed=1)
Fluxsmooth()

I don't think that fluxSmooth is necessary after SpaceDust and TemporalCleaner.

Quote:

GripSize()
SpaceDust()
.
.
GripBorders()

Some people seem to have problems (illegal operation during encode with TMPEGEnc) with Dust . I put GripBorder() before applying (Space or Faery) Dust.