Quote:
Originally Posted by Gavino
Isn't QTGMC(...).SeparateFields().SelectEvery(4,0,3) the same as (but much slower than) a simple SeparateFields()? (and with some quality loss, given the latter is lossless.)
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Er... yes... scratch that thought. Well, not quite, you do get temporal effects in the original fields as well as deliberate adjustments to help fit the interpolated fields (it's not quite "quality loss"). But that's only very marginally helpful.
I don't have time (nor, it would seem, the ability) to think about this deeply right now, but I had the gut feeling that something like that sub-pixel shifted rescale in the script above could be done on a progressive source. Then separate fields/weave on the reduced size image to give a more usable result. Kinda what I was hinting at at the end of that other post.
And I completely agree that there doesn't seem to be too much point doing elaborate bobbing. Maybe you might avoid certain aliasing in the result if you interpolate properly at the higher resolution?