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tritical · 5th June 2005, 05:56

v2.6.1 is exactly the same as v2.4 except for 4 things:

1.) Speed, 2.6.1 is quite a bit faster in YV12
2.) rounding differences (maximum of +- 1 change in pixel values)
3.) scene change detection method is different
4.) 2.6.1 doesn't crash

So if you are noticing big differences between v2.4 and v2.6.1 it is the scene change detection as it resets filtering after scene changes. The default for 2.4 is really low (it has a lot of false detections) compared to v2.6.1. However, the default settings for the other variables are pretty strong so the false scene change detections on moderate movement help prevent ghosting. If you want v2.6.1 to act more like v2.4 lower the scene threshold to 7 or 8. Both versions have a "log" option that allows one to see when the filter has detected a scene change.

I also ran a test on a 5000 frame clip to make sure this was true, and indeed the clips matched exactly (except for +- 1 due to rounding) after both versions detected scene changes in the same places.

5th June 2005, 05:56	#18 \| Link
tritical Registered User Join Date: Dec 2003 Location: MO, US Posts: 999	v2.6.1 is exactly the same as v2.4 except for 4 things: 1.) Speed, 2.6.1 is quite a bit faster in YV12 2.) rounding differences (maximum of +- 1 change in pixel values) 3.) scene change detection method is different 4.) 2.6.1 doesn't crash So if you are noticing big differences between v2.4 and v2.6.1 it is the scene change detection as it resets filtering after scene changes. The default for 2.4 is really low (it has a lot of false detections) compared to v2.6.1. However, the default settings for the other variables are pretty strong so the false scene change detections on moderate movement help prevent ghosting. If you want v2.6.1 to act more like v2.4 lower the scene threshold to 7 or 8. Both versions have a "log" option that allows one to see when the filter has detected a scene change. I also ran a test on a 5000 frame clip to make sure this was true, and indeed the clips matched exactly (except for +- 1 due to rounding) after both versions detected scene changes in the same places.