How to remove text crawls from avi?

[chuck1j]

I record to TIVO, copy to Sony DV camcorder, capture via firewire to Studio 8, edit the avi's in Studio and/or VirtualDub, encode with Tmpgenc, and burn to VCD with Nero. Can anyone tell me the best way to remove the bottom few lines containing text crawls from some of my recorded material. These areas contain things like sports scores and news headlines. They are present throughout the whole program. I've tried to clip in v'dub and also tried to resize in tmpgenc without much success. I end up with lots of edge noise on objects when they have complicated patterns and are in motion, and the screen size is no longer the correct ratio, sorry, don't know the proper terminology for these defects!

Thanks in advance,
chuck1j

[chuck1j]

No suggestions, so far! Maybe it will help if I add that I can mask the area and end up with a solid bar over the text area with no reduction in quality, but I'd really like to remove the text crawl area and resize with no loss in quality, if possible. Come on folks, surely someone else has done this before?

chuck1j

[BJ_M]

not many lines to begin with with TV broadcast ... best to mask it and not resize ..

[dphirschler]

Use the Virtual Dub resize filter. Say you cropped 20 lines with the null transform filter. So use same width (352?) and same height (220?). Then check the "expand frame and letterbox image" and put in the new size (352x240). The picture will be centered with black bars above and below. You will have most likely gained a small portion of the picture that was hidden by your TV and about half of the black bars will now be hidden.

Now, I am assuming your capture size is 352x240. Please tell us if it is different.


Darryl

[chuck1j]

@BJ_M - Thanks, I learned something. I wasn't aware that the difference between TV broadcast capture and other sources would have that much effect.

@dphirschler - Thanks to you for your suggestion. I'll give that a try tonight. You are correct in assuming the capture size is 352x240. It's not easy for a newbie to determine just how much information is required for a solution. I didn't want to "muddy the water" with superfluous details.

Thanks to both,

chuck1j