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Old 20th March 2015, 10:01   #288  |  Link
youli
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Join Date: Mar 2015
Location: Ukraine
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I compared the two methods of interpolation - bilinear and Lanczos (see the pictures below).

The first frame was resized to 1920x540 by VerticalReduceBy2(Left) - left eye only, and restored to 1920x1080 by built-in DXVA decoder with Daum PotPlayer.

The second frame was resized to 1920x540 by Lanczos4Resize(Left, 1920, 540) - left eye only, and restored to 1920x1080 by built-in DXVA decoder with Daum PotPlayer.

It has a little differences, but I can not choose that is better.
Perhaps for size reduction by 2 in one axis interpolation method does not important, because it has a insignificant differences.

I'll compare again later with brighter, more detailed and grainy video.

bilinear:

Lanczos:

bilinear:

Lanczos:
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