Marco 1c724d01aa vp9: Updates to noise estimation.
Add threshold/condition on spatial_variance and brightness level.
Modification to normalization of block variance.
Change resolution limit below which we disable noise estimation.

Change-Id: If5be08a26ceda351242d8a58d2f0bc88c0a918f0
2015-11-05 18:19:01 -08:00
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2015-11-05 18:19:01 -08:00