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hello_hello · 22nd May 2017, 17:19

An SMDegrain question.....

Should contrasharp=50 (or some other value for sharpening with LSFMod) work for HD (720p) sources as contrasharp=true does? (although the latter is usually so subtle I wonder if it's working and I'm seeing placebo sharpening much of the time)
I ask, because contrasharp=50 (or some other value) appears not to work, although it does produce artefacts around the edges if you crank the sharpening up too much, even though it doesn't sharpen. For example (small section of the frame):

SMDegrain(thSAD=150)
LSFMod(strength=100)
Probably over-sharpened a bit, but to illustrate the difference.

SMDegrain(thSAD=150, contrasharp=500)
Note the bottom scan line.

Thanks.

22nd May 2017, 17:19	#75 \| Link
hello_hello Registered User Join Date: Mar 2011 Posts: 4,829	An SMDegrain question..... Should contrasharp=50 (or some other value for sharpening with LSFMod) work for HD (720p) sources as contrasharp=true does? (although the latter is usually so subtle I wonder if it's working and I'm seeing placebo sharpening much of the time) I ask, because contrasharp=50 (or some other value) appears not to work, although it does produce artefacts around the edges if you crank the sharpening up too much, even though it doesn't sharpen. For example (small section of the frame): SMDegrain(thSAD=150) LSFMod(strength=100) Probably over-sharpened a bit, but to illustrate the difference. SMDegrain(thSAD=150, contrasharp=500) Note the bottom scan line. Thanks.