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Search: Posts Made By: FredThompson
Forum: Video Capturing / Recording 02-08-2004, 02:12 AM
Replies: 10
Views: 961
Posted By FredThompson
ATi cards will capture PAL, it's just...

ATi cards will capture PAL, it's just undocumented. ADS USB Instant DVD 2.0 does NTSC and PAL.

Capturing audio on your mobo or internal card is a great way to pick up system noise, use an external...
Forum: Video Capturing / Recording 12-30-2003, 11:40 AM
Replies: 5
Views: 1,047
Posted By FredThompson
For NTSC, interlaced is ~60 images/second,...

For NTSC, interlaced is ~60 images/second, deinterlaced is ~30 images/second. PAL is ~50 and 25.

There are 2 basic options; keep one field and modify the second to fit it or modify both fields.
...
Forum: Video Encoding and Conversion 12-30-2003, 10:54 AM
Replies: 4
Views: 702
Posted By FredThompson
2-pass with ProCoder is all but impossible to...

2-pass with ProCoder is all but impossible to match for size/quality. It does take quite a while but you'll get equal or better quality to the other encoders at SVCD bitrates. Something to consider...
Forum: Video Capturing / Recording 12-30-2003, 10:49 AM
Replies: 5
Views: 1,047
Posted By FredThompson
Any time you deinterlace you throw away half the...

Any time you deinterlace you throw away half the temporal information. You're also either exchanging half the spatial information for an approximation or all of it for an approximation. Deinterlacing...
Forum: Video Capturing / Recording 12-30-2003, 10:44 AM
Replies: 16
Views: 1,376
Posted By FredThompson
NTSC or PAL? If NTSC, you should be aware of the...

NTSC or PAL? If NTSC, you should be aware of the differences between 4:1:1 and 4:2:0. NTSC DV uses 4:1:1 which means one color for each block of 4 horizontal pixels. This can lead to soem real ugly...
Forum: Avisynth Scripting 07-26-2003, 11:17 PM
Replies: 14
Views: 753
Posted By FredThompson
oh, yeah, I've been messing with DV all day and...

oh, yeah, I've been messing with DV all day and somehow thought that was the subject here. :oops:

Yes, I suppose it IS possible that the "defects" are there in the source and we don't see them on...
Forum: Avisynth Scripting 07-26-2003, 09:07 PM
Replies: 14
Views: 753
Posted By FredThompson
I think you mis-understood what I tryed to...

I think you mis-understood what I tryed to communicate.

Then again, maybe I misunderstand your misunderstanding :o

The phosphur on a TV has greater persistance than that of a monitor. This...
Forum: Avisynth Scripting 07-26-2003, 07:50 PM
Replies: 14
Views: 753
Posted By FredThompson
All frames in DV are key frames. I,B and P-frames...

All frames in DV are key frames. I,B and P-frames are concepts of MPEG compression. With DV, every frame is complete in and of it itself, it's just lossy.

What I was attempting to describe is a...
Forum: Avisynth Scripting 07-26-2003, 10:42 AM
Replies: 14
Views: 753
Posted By FredThompson
Do you mean the difficulty NTSC DV sometimes has...

Do you mean the difficulty NTSC DV sometimes has with straight edges or fine lines where it appears as if the encoder is having difficulty deciding the value a pixel should have so it wavers between...
Forum: Avisynth Scripting 07-26-2003, 01:38 AM
Replies: 14
Views: 753
Posted By FredThompson
"vertical hunting"... ... ... huh?

"vertical hunting"... ... ... huh?
Forum: Avisynth Scripting 07-21-2003, 07:44 PM
Replies: 49
Views: 11,445
Posted By FredThompson
ah, I understand.

ah, I understand.
Forum: Avisynth Scripting 07-21-2003, 06:48 PM
Replies: 49
Views: 11,445
Posted By FredThompson
I'm not sure I understand what artifacts you...

I'm not sure I understand what artifacts you mean. Can you describe?

I certainly do agree with your comment about sharpening features in the camcorder.

The 4:1:1 and 4:2:0 problems with...
Forum: Avisynth Scripting 07-21-2003, 03:57 AM
Replies: 49
Views: 11,445
Posted By FredThompson
If at all possible, please consider adding...

If at all possible, please consider adding filtering of the saturated red and blue bleed which is common to 4:1:1 NTSC. There's a sample on my discussion page (http://www.geocities.com/fredthompson6)...
Forum: Video Encoding and Conversion 07-21-2003, 03:54 AM
Replies: 4
Views: 563
Posted By FredThompson
Check the links in Reference - The Best section...

Check the links in Reference - The Best section of my links list.
Forum: Avisynth Scripting 07-18-2003, 07:02 PM
Replies: 49
Views: 11,445
Posted By FredThompson
Thank you, I'd be very interested in testing such...

Thank you, I'd be very interested in testing such a filter.

I'm almost to the point of capturing twice and combining for noise reduction. It requires more space but might be worth the effort.
Forum: Avisynth Scripting 07-18-2003, 01:05 PM
Replies: 49
Views: 11,445
Posted By FredThompson
Yes, I was surprised when I saw the halo in the...

Yes, I was surprised when I saw the halo in the DV sample. I don't remember exactly which camcorder was used to make it. I think it was bottom-end JVC but, even so, the exact model # would be...
Forum: Avisynth Scripting 07-17-2003, 07:10 PM
Replies: 49
Views: 11,445
Posted By FredThompson
My camcorder does passthru conversion so it can...

My camcorder does passthru conversion so it can be done either way. The sample I mentioned is pure DV camcorder.
Forum: Avisynth Scripting 07-17-2003, 01:54 PM
Replies: 49
Views: 11,445
Posted By FredThompson
I'll be more than happy to test this against DV...

I'll be more than happy to test this against DV as well.

On my support page (http://www.geocities.com/fredthompson6) you'll see some red links in the middle of the page. Two of those are for...
Forum: Avisynth Scripting 07-17-2003, 12:18 PM
Replies: 49
Views: 11,445
Posted By FredThompson
ok, in examining sample picture 5 I see what you...

ok, in examining sample picture 5 I see what you are doing. If you look at the people, their immediate right edge has a light color halo int he before but not in the after. The after has some...
Forum: Avisynth Scripting 07-16-2003, 04:30 AM
Replies: 20
Views: 1,704
Posted By FredThompson
oh, I just remembered why each filter has a...

oh, I just remembered why each filter has a colortransform in front of it.

That made it easy to move them around. The focus was on function first and when a script would crash in VirtualDub it was...
Forum: Avisynth Scripting 07-16-2003, 04:19 AM
Replies: 20
Views: 1,704
Posted By FredThompson
yes, I know. The intent is to build a modular...

yes, I know. The intent is to build a modular script collection such that all the details are hidden.

Shadow Smoother forces me to have RGB at some point because it's a VirtualDub filter....
Forum: Avisynth Scripting 07-16-2003, 03:19 AM
Replies: 20
Views: 1,704
Posted By FredThompson
ok, the site is updated ...

ok, the site is updated

http://www.geocities.com/fredthompson6

Something went bad wrong because there is some blurring that shouldn't be there. It should be fixed fairly soon. It's 4 AM and I'm...
Forum: Avisynth Scripting 07-15-2003, 11:52 PM
Replies: 49
Views: 11,445
Posted By FredThompson
Would someone please create some before and after...

Would someone please create some before and after screenshots for this filter? The hardware I've got is quite good and I don't seem to have the problem this filter is supposed to correct. I'd like to...
Forum: Avisynth Scripting 07-15-2003, 11:51 PM
Replies: 98
Views: 6,743
Posted By FredThompson
There is a sample screenshot on my page showing...

There is a sample screenshot on my page showing RAW DV, KVCD filtering, KVCD with VagueDenoiser and VagueDenoiser by itself.

That particular grab is a little misleading because it looks like the...
Forum: Avisynth Scripting 07-15-2003, 05:07 AM
Replies: 20
Views: 1,704
Posted By FredThompson
I guess "better" is a personal opinion ;) ...

I guess "better" is a personal opinion ;)

Full script should be up within a day or so. I got sidetracked with wavelet noise compression and have also played with Shadow Smoother for near-black...
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