What's wrong with this capture?

[stixster]

I am just trying to find optimum capture settings for my card. Now, I think I have got the quality I want, but what is wrong with this cap?

http://s21.yousendit.com/d.aspx?id=03196FAJRH1SL11VZ9S3YA9W81

Ignore the fact that it's going through 1 speaker because it was a temporary connection. The picture looks quite distorted like all the things on the screen have a trail.

I used iuVCR with the Picvideo MJPEG codec at 19 quality which I then converted to DivX with Dr.DivX. It's a composite connection.


Can anyone help me to sort out the "trails"?

Thanks in advance


-Nick

[junkmalle]

At some point you used a blend deinterlace. Don't!

[stixster]

At some point you used a blend deinterlace. Don't!

I forgot to add, I used a De-Interlace filter on iuVCR. Without it, I get lines all over the picture. I don't find this suitable for PC viewing.

-Nick

[junkmalle]

Apparently iuVCR uses a blend deinterlace -- all this does is blur the two fields together. This is the worst way to deinterace cartoons.

Does iuVCR have a "drop field" deinterlace? If so, try that instead. That combined with a good resize back to the original frame size would work pretty well.

Can you control the field order you card captures in? That would probably take care of the problem too. And it would be the best solution.

Otherwise you'll have to capture interlaced then run through another program to deinterlace. Try the following:

1) Capture a short segment with interlace.

2) Open the file in VirtualDub.

3) Add the Deinterlace Filter.

4) Select "Drop Field 1" or "Drop Field 2" as the deinterlace mode. This will eliminate one field reducing the vertical resolution to half. For example 720x576 to 720x288.

5) Add the Resize filter with Lanczos3 and bring the size back up to the original height, 720x576 in my example.

6) Step through the animation and view the results in the output pane. Save AVI if you're happy.

[stixster]

5) Add the Resize filter with Lanczos3 and bring the size back up to the original height, 720x576 in my example.

Where would I find this filter??


Thanks

-Nick

[lordsmurf]

Do not deinterlace. Use software on the computer that does a special playback deinterlace when you watch it. PowerDVD and WinDVD are two, and yes they can playback AVI files just fine, not just DVDs.

[junkmalle]

5) Add the Resize filter with Lanczos3 and bring the size back up to the original height, 720x576 in my example.

Where would I find this filter??


Thanks

-Nick

VirtualDub -> Video -> Filters -> Add -> Resize -> Filter Mode pulldown -> Lanczos3. And set the size fields.

Smurf's suggestion of a bob deinterlacing player will work for viewing interlaced video on a PC.

[stixster]

VirtualDub -> Video -> Filters -> Add -> Resize -> Filter Mode pulldown -> Lanczos3. And set the size fields.

I don't see this filter.

-Nick

[junkmalle]

VirtualDub -> Video -> Filters -> Add -> Resize -> Filter Mode pulldown -> Lanczos3. And set the size fields.

I don't see this filter.

-Nick

Scroll down on the pulldown. Lanczos3 is the last one. Also try Bilinear or Bicubic.

[stixster]

Scroll down on the pulldown. Lanczos3 is the last one.

Not for me it isn't.

I've got a side question aswell. Say I have an MPEG2 file which is 27 mins long. If I want to encode to DivX to get the file size down, what settings should I be aiming for.

2000k is dreadful quality, 4000k is better but the filesize is 816mb.

-Nick

[lchiu7]

I capture also using iuvcr and the mjpeg codec. Though I have rarely ever encoded the output to divx format when I encode to MPEG2 I never de-interlace. As noted in this forum

1. if you watch on a PC that needs progressive video, use a player that does it on the fly like PowerDVD. This should remove the scan lines

2. For DVD authoring leave it interlaced and for a TV that will be fine. If you have a progressive scan output device then hopefully your player can de-interlace for you