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Old 19th March 2015, 17:07   #282  |  Link
jdobbs
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Join Date: Oct 2001
Posts: 20,973
Quote:
Originally Posted by r0lZ View Post
Thanks for the link, |1313|, but I prefer the human readable explanation. (See the links in the edits of my previous post.)

And thanks jdobbs for the confirmation. BTW, can you also confirm that the ReduceBy2 filters are really good to, well... reduce by 2? Or is it better to use the Bicubic filter?
ReduceBy2 uses bilinear resizing. I would suggest it is just as good if not better than bicubic. The improvements introduced in bicubic, lanczos, spline (and others) are there (generally) to improve the introduction of the "imaginary" pixels needed for image upscaling, not downscaling. Of course you're bound to get arguments from people either way -- like anything else.

I personally use bilinear resizing for downsizing and either lanczos or spline for upsizing. That's also what's implemented as defaults in BD Rebuilder.
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