Quantcast MovieStacker: DCT Filter on MovieStacker 2.0 - digitalFAQ.com Forums [Archives]
  #1  
07-01-2003, 08:58 AM
CaLaFaT CaLaFaT is offline
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Hi, is DCT Filter only for avisythn 2.5? or is too for 2.0? i have movistacker 2.0 and I had installed avisythn 2.5, movistacker say me that doesnt work with avisythn 2.5,only for 2.0.x!!! i have interested for use DCT Filter for the Blocks in the dark areas,and then i have installed avisythn 2.0. for use this filter, but i have read here (www.trbarry.com/Readme_DctFilter.txt) that this filter is to 2.5 and i have a question: doesnt work DCT filter in avisythn 2.0.x? thanks and excuse me for my english, I am spanish thanks a lot...
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  #2  
07-01-2003, 09:22 AM
kwag kwag is offline
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Welcome CaLaFaT,

The filter is available for 2.0x and 2.5x. Get any filter you want here http://www.avisynth.org/~warpenterprises/

Saludos
-kwag
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  #3  
07-01-2003, 09:46 AM
CaLaFaT CaLaFaT is offline
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And the best configuration for this filter for reduce at max. the DCT blocks in dark areas, kwag? can i use this filter with blockbuster noise,does it? thanks...Kwag
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  #4  
07-01-2003, 09:57 AM
kwag kwag is offline
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I really don't see any difference with or without this filter
Remember, no matter how much you filter on the input, the output is finally dictated by the encoder. In this case, DCT blocks will be produced on the output, no matter how clean the source is

Edit: DCT blocks are gretly reduced by the KVCD "Notch" matrix. That was the whole purpose of the last changes

-kwag
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  #5  
07-01-2003, 10:03 AM
CaLaFaT CaLaFaT is offline
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Well, then i have only use the blockbuster noise filter, if you say that you dont see the difference with the DCT filter, it will be true..it's ok,kwag? you re the best in all! Thanks
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  #6  
07-01-2003, 10:06 AM
CaLaFaT CaLaFaT is offline
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Perdona por escribir en español bueno, se que tambien hablas español, me podrias decir que significa tu ultimo post en español, es k en ingles solo tengo nociones basicas...(o si kieres en el moviestacker español) en serio perdona....

I really don't see any difference with or without this filter
Remember, no matter how much you filter on the input, the output is finally dictated by the encoder. In this case, DCT blocks will be produced on the output, no matter how clean the source is

Edit: DCT blocks are gretly reduced by the KVCD "Notch" matrix. That was the whole purpose of the last changes

-kwag
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  #7  
07-01-2003, 10:14 AM
kwag kwag is offline
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Log in the Spanish forum here: http://www.kvcd.net/forum_es/index.php

-kwag
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  #8  
07-01-2003, 10:25 AM
CaLaFaT CaLaFaT is offline
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Please, Kwag can you answer the next post? and sorry for write in spanish...

http://www.kvcd.net/forum_es/viewtopic.php?t=1048
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  #9  
07-01-2003, 11:37 AM
CaLaFaT CaLaFaT is offline
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kwag, i need the answer please...
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  #10  
07-01-2003, 11:48 AM
kwag kwag is offline
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Quote:
Originally Posted by CaLaFaT
kwag, i need the answer please...
I replied to your PM

-kwag
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  #11  
07-01-2003, 05:23 PM
Dialhot Dialhot is offline
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Quote:
Originally Posted by kwag
I really don't see any difference with or without this filter
So you should use the "on the fly" DCT filter included in ffdshow to make a test : open a video in a player, open the ffdshow config window, go to the DCT tab, and try some values. You will wuickly see the difference if you change one of the 5 first numbers
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  #12  
07-01-2003, 05:55 PM
jorel jorel is offline
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yes...

and DCT decrease the final file size then give me more CQ!

i can't talk about quality cos i only did predictions
and need some inputs about image using this filter.

anyone test the quality?
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  #13  
07-01-2003, 08:01 PM
kwag kwag is offline
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Quote:
Originally Posted by Dialhot
Quote:
Originally Posted by kwag
I really don't see any difference with or without this filter
So you should use the "on the fly" DCT filter included in ffdshow to make a test : open a video in a player, open the ffdshow config window, go to the DCT tab, and try some values. You will wuickly see the difference if you change one of the 5 first numbers
Yes, you can see the difference real time on a player or Vdub if the source has high frequency visible components, but not after you process it through the encoder with KVCD's Q Matrix At least I can't
The purpose of that filter is to reduce high frequency noise components from the source, and the matrix is already set with (slightly) lower output values than the normal MPEG standard matrix. Also with the new adaptive script, usually high frequency noise is not visible on low and static scenes, because the temporal filter is working very hard. So what I mean is I that only if the source fed to the script has high frequency components with visible mosquitoes (not the case from clean DVDs! ), then the filter is very usefull. But so far, I have not seen any need on an encoded MPEG with or without the filter. Unless I'm doing something wrong
But I recall some people actually getting higher file size using DCT filter instead of lower file size
This was tested here some time ago. I guess I'll give it a try again with the current script

-kwag
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  #14  
07-02-2003, 01:10 AM
CaLaFaT CaLaFaT is offline
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Dialhot, jorel, you have said that the DCT Filter is "good" and we can test this filter, but if we want to use this filter in a script...what is the best configuration to put if there is a lot of DCT Blocks? thanks...
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