Resize vs AddBorders

[AviUser]

So I have some 704x480 video. It was originally on VHS, but moved to DVD by a VHS->DVD player. I opened the VOB files using DGIndex and honor pulldown flags.

The video itself is 704x480, but after cropping crap around the video, it comes down to 700x472.
Now, the target resolution I want is 700x480.

Which option is better?
1. AddBorders(0,4,0,4)
2. BicubicResize(700,480)

Thank you in advance!

Original (700x472):
700x472.jpg


BicubicResize (700x480):
BicubicResize.jpg

[jackoneill]

Which option is better?
1. AddBorders(0,4,0,4)
2. BicubicResize(700,480)


Better for what? There is also nothing wrong with leaving it at 700×472.

[AviUser]

Thanks for the reply.

I mean better for quality and preservation. I am doing this conversion for some important people to me and want the best quality.
I want the video to be 700x480, as the other videos in the batch I already finished are at 700x480.

[jackoneill]

Resize it. I doubt anyone will notice that the image got vertically stretched a bit, whereas the black borders are easy to spot.

[AviUser]

Thanks jackoneill. I'll wait to see what others suggest also.

[Sharc]

I suggest to add borders.
Your video looks interlaced. Just resizing interlaced material without deinterlaceing may produce ugly results.

[AviUser]

Oh, I will deinterlace before resizing or adding borders if this makes a difference.

[Sharc]

With same rate deinterlacing you will loose temporal resolution which is perhaps not the best choice for sports.
My recommendation: Add borders and encode as interlaced.

[AviUser]

Thanks all for you ropinions. I went with encoding as de-interlaced and using bicubic resize, as this seemed the best for my particular video.

[SamKook]

If you de-interlace it, make sure you use a deinterlacer that will keep the movement fluidity by interpolating each missing half of the fields like QTGMC.

And have you given Blackmanresize a try? It's usually quite good at what it does.

[AviUser]

Thanks SamKook for these ideas.
I will probably try QTGMC and Blackmanresize on my next videos.

[2Bdecided]

You need to bob-deinterlace, re-size, and then re-interlace.

Or just add mod(2) borders.

For interlaced content, I always choose to add borders. The quality hit of deinterlacing, resizing a small amount, and re-interlacing is just too great. There are no perfect deinterlacers.

Small borders will always be lost in the overscan on a TV, so you will never see them, except on a PC. The very very small number of people who have their TVs set to 1:1 pixel / underscan will already be used to seeing all kinds of crap around the edges of their screen in regular broadcasts, so you needn't worry about them.

If you ever upload to YouTube etc, then of course you'll deinterlace and crop to get a clean-to-the-edges video.

Cheers,
David.