Quantcast Is there a Filter to Enhance Dimly Lit Scenes? - digitalFAQ.com Forums [Archives]
  #1  
05-24-2004, 12:47 PM
Jimblob Jimblob is offline
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Hi

I have an xvid avi(1300kbps, 592x320, 1.85:1, pal, 106minutes) which I want to encode to a pal skvcd.
Most of the encode looks okay except for some dimly lit scenes which turn out hazy. Here is the script:

AviSource("C:\TMPGEnc\myfile.avi",false)
BlindPP(cpu=4)
Undot()
Blockbuster(method="noise",detail_min=1,detail_max =3,variance=0.1,seed=1)
Convolution3D(1, 6, 12, 6, 8, 2.8, 0)
GripCrop(480, 576, overscan=2, source_anamorphic=false)
GripSize(resizer="LanczosResize")
VagueDenoiser(threshold=1.0,method=1,nsteps=6,chro ma=true)
TemporalSoften(2,7,7,3,2)
GripBorders()

Is there a filter to enhance dimly lit scenes? Am I trying to fit too much onto a single 80 minute disk?

Thanks
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Someday, 12:01 PM
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  #2  
05-26-2004, 09:24 AM
gamma gamma is offline
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Have you tried it with the v4 avi script?
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  #3  
05-26-2004, 09:31 AM
Jimblob Jimblob is offline
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No response??? Okay...I made a change in the script...

AviSource("C:\TMPGEnc\myfile.avi",false)
BlindPP(cpu=4)
VagueDenoiser(threshold=1.0,method=1,nsteps=6,chro ma=true)
Blockbuster(method="noise",detail_min=1,detail_max =3,variance=0.1,seed=1)
Convolution3D(1, 6, 12, 6, 8, 2.8, 0)
GripCrop(480, 576, overscan=2, source_anamorphic=false)
GripSize(resizer="LanczosResize")
Undot()
TemporalSoften(2,7,7,3,2)
DCTFilterD(4)
GripBorders()


I am hoping for some kind of advice on how deal with those few scenes with low lighting that end up fuzzy/blured.

Judging from the response of the first post, nobody has anything to say. Even if you have no suggestions, let me know.

Thanks
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05-26-2004, 10:27 AM
Dialhot Dialhot is offline
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You won't fix yur light related problem by playing with a denoiser like vaguedenoiser.

Your problem is too fuzzy for me to understand what happens to you.

A snapshot of the original frame and of the corresponding encoded one should be of great help.
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  #5  
05-28-2004, 08:05 AM
Jimblob Jimblob is offline
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Once again, I fell victim to "overfilteritis syndrome". I re-encoded without vague denoiser and am satisfied with the results.

Thanks Dialhot
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