How to do resizing after capture

[roh]

Hello,

I capture to AVI in Vdbub at 480 x 576 using ATI AIW Radeon. Now I would like to resize it to VCD resolution 352 x 288 (PAL).

While reading in the forums some suggest that I use tmpgenc to resize using the bicubic or bilinear filters and some suggest that I open the original AVI file simply in Vdub, and use the VCD Template, that would automatically resize.

Which will give me a better quality? Should I resize using Tmpgenc and then frameserve to Vdbub or should I directly convert to VCD in Vdbub.

If Tmpgenc is the way to go using filters, should it be bilinear or bicubic.

Thanks,
Roh

[bugster]

Reading your post, I think you have got your TmpGenc and Vdubs reversed!

Use Vdub to resize then frameserve to TmpGenc for conversion to VCD.

TmpGenc can resize for you, removing one step, but it is less efficient and lower quality than the vdub resize filter.

[roh]

bugster,

Yes, you are right and thanks for the suggestion.

Now what should be the settings for the resize filter - bicubic? bilinear? and even some setting within those?

Regards,
Rohit

[eagleone]

Hello,

I capture to AVI in Vdbub at 480 x 576 using ATI AIW Radeon. Now I would like to resize it to VCD resolution 352 x 288 (PAL).

I have the same card. The way I do it for VCD is capture at 384*576 then resize high quality with vdub to 384*288 (keeps one field but deinterlaces at the same time). This keeps the aspect ratio at 4:3. Then I crop left and right to get 352*288. This I have found the best and quickest way in Virtualdub. Test it.

[bugster]

As for which is the best resize filter, it very much depends on how much time you have on your hands and what you find acceptable. I dont have to resize oftne but when I do I tend to use the Bilnear (IIRC) filter at the highest quality setting.

Basically its a case of try it and see what you are happiest with.

[roh]

Thank you, I will try in vdub to resize instead of directly resizing in Tmpgenc.

Eagleone, could you please give me more details of your settings in Vdub when you resize. I did not quite get what you mean by 'resize in high quality.

Thanks,
Roh