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| Morsa |
| Posted: Oct 2 2002, 09:21 PM |
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Moderator of the Vdub support board
Group: Moderators
Posts: 640
Member No.: 246
Joined: 9-September 02
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Does anyone think about including Lanczos to smart resize filter??
If so, look into ffdshow source code. It supports lanczos, and also has some nice deblocking features. |
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| Morsa |
| Posted: Oct 9 2002, 08:24 AM |
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Moderator of the Vdub support board
Group: Moderators
Posts: 640
Member No.: 246
Joined: 9-September 02
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Well by now, I am tired of trying to understand ffdshow's MMX nice code, pity me.
If someone has a nice Lanczos routine in C i would be glad if he/she could post a link here, just to see if I can ad it to Smart resize.
Thank you! |
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| phaeron |
| Posted: Oct 10 2002, 03:24 AM |
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Virtualdub Developer
Group: Administrator
Posts: 7773
Member No.: 61
Joined: 30-July 02
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If the smart resize filter is based off of VirtualDub's resample.cpp module all you have to do for decimation is add the Lanzcos3 formula to the kernel generator at the bottom. The decimation half of the resampler supports pretty much any FIR filter. You might as well just write a generalized windowed-sinc filter as that will allow you to try ridiculous 100-point filters if you want.
http://www.dspguide.com/ has a nice book about digital signal processing that will tell you just about everything you might want to know for tweaking resampling filters.
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| Morsa |
| Posted: Oct 10 2002, 03:42 PM |
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Moderator of the Vdub support board
Group: Moderators
Posts: 640
Member No.: 246
Joined: 9-September 02
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Great site, everyone must visit !!
Thanx Avery. |
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| Ookami |
| Posted: Oct 16 2002, 02:57 PM |
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Unregistered
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http://forum.doom9.org/showthread.php?s=&t...&threadid=33290
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| Ookami |
| Posted: Oct 16 2002, 02:58 PM |
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Unregistered
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Hope the mods will don't mind linking to a thread in a another forum, but I'm too lazy to search for all the links in there.
http://forum.doom9.org/showthread.php?s=&t...&threadid=33290
Cheers,
Mijo.
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| ChristianHJW |
| Posted: Oct 16 2002, 03:07 PM |
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Advanced Member
Group: Moderators
Posts: 1768
Member No.: 2
Joined: 7-July 02
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| QUOTE (Ookami @ Oct 16 2002, 04:58 PM) | | Hope the mods will don't mind linking to a thread in a another forum |
For sure we dont !! We are hear to help people, not to praise ourselves. Any link to other pages that is useful to our readers here is ok ..... in fact, linking is the basic sense behind internet.
It makes me sad that there are sites now these days that forbid their members to link to useful information on other sites, because they could 'advertise' these places ......
You're always welcome here Mijo !
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Visit the unofficial Virtualdub support forum on http://forums.virtualdub.org - help to reduce the big number of emails Avery Lee is getting every day !!
Support matroska as container and Gstreamer as the only truely open, x-platform multimedia platform .... |
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| Sarreq Teryx |
| Posted: Oct 17 2002, 07:47 AM |
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VirtualdubMod Alpha tester
Group: Vdubmod Alpha Testing Team
Posts: 175
Member No.: 41
Joined: 16-July 02
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very nice! 
any word on those deconvolution and/or stacking filters yet?
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And as I walk through the Valley of the Shadow of Death, Lord, thy balls and shaft, they comfort me, you annoint my head with oil, some salt, a dash of pepper, a sprigg of parsley......Lord?............Lord??? What dost thou intend to do with that fork??? |
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| Morsa |
| Posted: Oct 18 2002, 05:31 PM |
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Moderator of the Vdub support board
Group: Moderators
Posts: 640
Member No.: 246
Joined: 9-September 02
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Not yet but still investigating.
Avisynth people is on that topic, and I guess they will get it sooner than us ;-). |
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