DCT Blockbutser S.O.S.

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dirtydt19
Joined: Fri Mar 18, 2005 10:59 pm
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DCT Blockbutser S.O.S.

Post by dirtydt19 » Fri Mar 18, 2005 11:31 pm

I have been researching and re-reading every piece of info (even here) I could find for eliminating DCT blocks for MONTHS to no avail. I plead with any expert/know-it-all, anyone with extensive knowledge to please explain to me, in human terms, on how to properly use blockbuster or any other DCT filter so I may have my video quality at its best. I have read the blockbuster document by Ross Thomas over and over and it reads like #%^R^$&^%$*&^ to me each time. I would like a kind soul to spare some of their time to teach me on how to use it. Help would be greatly, immensely, very much, extremely, highly, utterly, and completely appreciated. Do you understand? I am desperate.

For reference on the steps I take for my footage.
SangNom(order=1,aa=32) then in another step...

converttoYV12(interlaced=false)
msmooth(threshold=6,strength=4)
temporalcleaner()
msharpen()
Tweak(sat=1.7,bright=10,hue=-10)
ColorYUV(gain_u=10)
LanczosResize(512,384)
blockbuster(method="noise",luma_threshold=30,luma_offset=-2)

though I often change blockbuster's settings.

Also I use VirtualDubMod and Adobe Premiere Pro.

Someone PLEASE tell me what I'm doing wrong!

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Scintilla
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Post by Scintilla » Fri Mar 18, 2005 11:58 pm

Is increasing the bitrate an option? You'd think that would do it.
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dirtydt19
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DCT

Post by dirtydt19 » Sat Mar 19, 2005 12:02 am

Tried it. Either I wasn't doing it right or it didn't work.

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badmartialarts
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Post by badmartialarts » Sat Mar 19, 2005 12:46 am

From my playing around, blockbuster doesn't seem to work well on animated sources. From my understanding, it adds noise to the video so the blocks are less noticeable, but by adding noise to something that already is just a bunch of planes of unshaded color like an animated source, it'll probably end up looking just as bad or worse as the blocks did to begin with.

As well as the fact that the final compression step is always going to add it's own blocks, no matter what you do to the original source. :(
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