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Old 8th February 2008, 23:11   #1  |  Link
jamos
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Converting 1080p to 720p

I would like to use a avisynth script to do this but the issue is I need to readd the borders while keeping the same aspect ratio.

original is 1920x800 (borders cropped I am assuming just adding 140 top and bottom borders would make it full 1080p)

But i want to downsize it to 720p. I would like to get a proportional 1280x??? with adding borders to make the ??? turn into 720.

I have tried this but it seems to strech the picture so I am assuming the borders have to be bigger and the height smaller.

Lanczos4Resize(1280,588).addborders(0,66,0,66)

thanks for any help.

ok doing some math which i am not good at it seems that correct proportions would be

Lanczos4Resize(1280,534).addborders(0,93,0,93)

am I correct?

Last edited by jamos; 8th February 2008 at 23:19.
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Old 8th February 2008, 23:24   #2  |  Link
Atak_Snajpera
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It's very simple
1920/800 = 2.4
1280/2.4 = ~533

Lanczos4Resize(1280,534).addborders(0,93,0,93)
so this line is correct
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Old 9th February 2008, 05:47   #3  |  Link
jamos
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Quote:
Originally Posted by Atak_Snajpera View Post
It's very simple
1920/800 = 2.4
1280/2.4 = ~533

Lanczos4Resize(1280,534).addborders(0,93,0,93)
so this line is correct
Thanks I did it correctly then.
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