DQI is a simple filter that simulates real quantization similar to jpeg compression and decompression.
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Originally Posted by redfordxx
Well the question is whether smoothing noisy areas is bad or good;-) But definitely, fine detail was problem in SmoothDeblock2. SmoothDeblock3 is little better... But it does not remove the cause of the problem it only rescues something of what was damaged
benefits of 16:
little sharper and less artifact (artifacts appear when are highly quantized hi freq areas... compare SmoothDeblockLayer(quant=6,density=2 or 4))
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So you are curing the symptoms
Maybe improving the previous step is better.
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Originally Posted by redfordxx
I have one more approach to try to implement: First adapting and then merging shifts.
For instance split the frame to areas 32x32 and apply appropriate quant only to that area. It would be milions of crops in script...;-)
For this is needed very good and smooth adaptation mask prepared.
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Yeah! As a script it's ugly. As a filter even 8x8 is easy and fast.
bis besser,
T0B1A5