|Originally posted by NiToNi|
What kind of issues Vlad?
It shows as blocking, almost like a grid, in my system.
How many bits precision today?
Don't know, but would doubt it's more than 8-bit.
What is ffdshow Lanczos today, Catmull-Rom or Spline? Obviously, we need Catmull-Rom, but is Andy really the right guy to develop this? Integrate the code, yes, but to write the algo itself?
Not sure again. Andy was asking in another thread for some guidance where could he find better algos as he wanted to integrate that better algo with 32 bit floating precision into a new algo.
What is aSharp really doing to the image, in technical terms, especially at the settings you prefer to run it at?
Except for video card/driver issues, I am more practical than theory guy. At one point I did some read on it, but that was a while back. There was a lot of discussion on Asharp on Avisynth form.
Have you played with LimitedSharpen as suggested by Socio?
Not really. I am home only for weekends for the last couple of month, so just don't have time. At this point I am quite happy with the image quality and Asharp does a great job sharpening without excessive ringing, when set up correctly. The key is finding the right balance between unsharp masking threshold and adaptive sharpening strength. The two are inter-dependent. I'd reduce adaptive sharpening strenght to the point you can tolerate ringing at certain level of unsharp masking threshold (probably between 0.1 and 0.8), and then play around with more combinations.