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Old 15th September 2015, 16:37   #1  |  Link
I'm Siri
feisty2's Avatar
Join Date: Oct 2012
Location: Los Angeles, California
Posts: 2,119
reconstruct 420/422 back to 444 with NLMeans

no more bullshits, getting to the point now

test image (RGB)

converttoyv12 (chromaoutplacement="mpeg2")
converttoyv24 (chromainplacement="mpeg2")

subsampled to 420 and then back to 444, looks like a piece of shit now

converttoyv12 (chromaoutplacement="mpeg2")
converttoyv24 (chromainplacement="mpeg2")

y=converttoy8 ()
u=utoy8 ()
v=vtoy8 ()
unew=u.knlmeanscl (a=24,s=0,h=4,rclip=y)
vnew=v.knlmeanscl (a=24,s=0,h=4,rclip=y)
ytouv (unew,vnew,y)

magic just happened, well, not that good like the original copy, but still sky rocket better than the result above

just a rough idea kinda thing, ain't tested it much and... just in case u guys would like to try something different and funny and, whatever
If I got new ideas, will post here: https://github.com/IFeelBloated
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