SVP 4 artifacting is unacceptable (Page 2 of 3)

I experience exactly the same (SVP4 more (HALO like) artifacts and therefore reverted to SVP3 as well untill this will be resolved.

Just wanted to say thanks for these SVP 4 settings (with two changes: 2m interpolation and x2/x3 instead of fixed 60fps) . It's A LOT smoother and less artifacts for me than the semi-default settings that I was using (for SVP4 Pro). I didn't use 3.x so I couldn't comment on the issue. But I trust your words and hope they will fix/improve SVP 4 or else it would be a waste of my money to get an "inferior" product when the old, free version is better.

I am glad that my settings preview helped you achieve better video quality, even if outside the purpose of this thread, but something I have not mentioned is that I combine SVP with my Panasonic's Motion Smoother (set at low) - hence I can spread out the effect and achieve a smoother image for less artifacting. A small number of movies will also require to have "Search radius" set to "Small" (Dark Knight trilogy) in order to eliminate artifacting and animated films to have "Motion vectors grid" set to "12 px" / "14 px" otherwise fast scenes will produce line breaks, especially in highly detailed anime (Vampire Hunter D / Akira / GitS).

In the end game, if you find something in the video that bothers you artifacting wise, or find that you can bare a little bit more artifacting but require more smoothness, you can use these settings as a base and read about the effects of each and every setting via either Googling or reading developer comments in these forums to get what is best for you and your co-viewers.

However, the main issue persists, developers have yet to confirm that these problems can / will be fixed or even confirmed they exist. SVP 4.0 runs better, and we need and expect it to run at least at the same quality as SVP 3.x.

I would just like to point out that using svp 3.1.7 with the settings Fabulist provided barely increases the smoothness of a 24fps video and requires twice the amount of processing power than what can be achieved with SVP 4 pro

I myself has been struggling with the amounts of artifacting that SVP causes for years now (still do) and have spent countless hours discussing and tweaking settings (also still do), and sometimes even given up on using it for periods of time. But just recently with the SVP 4 pro release and some updates later, i believe that SVP 4 can do a very fine job. (even though less artifacting would be Very much appreciated )

These are my settings:
I am very aware that this is not artifact free. But it is not possible to get artifact free without reducing the smoothness by like 80%
These settings are used with my blu-ray movies, so 1080p content.

@ stefanogiusio

I find the smoothness increase to be substantial and adequate with my settings combined with my TV's smoothness, but of course you can get an even smoother image, which would be 'better'. However, you cannot get a smoother image without having a significant increase in artifacting. You can always increase the "Frames interpolation mode", but as I said; everyone finds a different set of settings perfect for him or her, mine are just set in a way that almost eliminate artifacts, my best friend who watches only animations has slightly different settings from me, which completely eliminates visible artifacts, for example.

The problem with SVP 4 is that although it provides a smoother video overall (and performs better in general), it has significantly more artifacts, specifically haloing, at any given set of settings. Haloing is actually so strong, that settings which are supposed to deter the problem seem to actually disregard it and just process every other artifact issue but halos.

@ JeepingJohnny

I can assure you that having access to the advanced settings will not do much for the problems discussed here.

But the newest version of SVP4 Pro is also 4.0.0.56...

Re: "type", default setting of 4 in SVP 3 and 2 in SVP 4...  I know where to position it in a script however I can't find a document wherein there is a description of the function. The Plugins: SVPflow 3.1 document makes no mention of it and web searches came up empty.  Perhaps you know where I might find an updated copy covering the new(?) functions in SVP? TIA

I definitely hope that the artifacting will be reduced in the future I find myself spending more time changing settings during a movie than actually watching it.

Hello,

I am sorry I could not provide frame comparisons for the films you listed, which is why I described it as a quick comparison. I had none on hand at the time and this was the best I had available (which was a 1080p copy, though I was aware the original film source was not.) I alsorealised that the test may have been effected by the use of the same version of Avisynth or the use of MadVR as the renderer. There are differences between the Developer and Pro versions of SVP but I'm not sure how much this extends beyond the naming and the available components for install.

Therefore I will try the test again when I have time, primarily with Ant Man (when I can get hold of a copy.) I will compare SVP 3.1.7a and SVP 4 Pro using EVR renderer with no image enhancements and the versions of Avisynth installed by default for SVP 3 and 4 (unless anybody has a better suggestion?)

Also, are there one or two other movies that would be especially insteresting to test? I also need three or more points in the movie that I can seek to for the most meaningful comparisons.

MistahBonzai
mashingan has covered your question, but I would like to add that the documentation is present here: https://www.svp-team.com/wiki/Plugins:_SVPflow though you need to look for it under the table for SVSuper.

Yes it does. Use BD remux or atleast 1080p rip

Ok, I have now experimented with the setup I described previously using the exact settings as shown in the screenshots below (those used by Fabulist for SVP 3.)

I tested Ant Man and many other video clips and can verify the difference in quality you are experiencing.
I have got to the root of the difference but I did not do a qualitative analysis to do this.
I generated images showing where pixel colours differed between interpolated frame screenshots.
This was a VERY slow process, and I compared those interpolated by SVP 3/SVP 4 with default scripts and also edited SVP 4 scripts (to bring it closer to the SVP 3 script.)
The result: At least in the case with Fabulist's settings, modifying the two parameters (those I mentioned previously) to the values in SVP 3 is sufficient to achieve zero difference between the SVP 3 and SVP 4 screenshots.

These are:
"analyse.main.search.coarse.distance" change -8 to -10
"analyse.main.search.coarse.type" change 2 to 4 (default SVPflow setting)

The major factor that changed the amount of artifacting is the "analyse.main.search.coarse.distance" setting which completely changed how sharp and large the artifacts in interpolated frames were.

The "analyse.main.search.coarse.distance" setting is controlled directly by the "Search radius" setting but the values used by SVP 4 and SVP 3 for each setting differ as follows:

                                  SVP 4      SVP 3   
Small and fast:             -6            -6        Also: "analyse.main.search.coarse.satd" set to false, "analyse.main.search.coarse.type" set to 2
Small:                          -6            -6
Average:                      -8            -10
Large:                          -12          -14

The "analyse.main.search.coarse.type" setting can only be controlled partly by the "Search radius" (as mentioned above for "Small and fast").  This makes no difference for SVP 4 since it is set to 2 by default, but it does for SVP 3 since it is set to 4 by default.

Now, this wouldn't be a problem if these settings were controllable through the "all settings" screen but unfortunately they are not.
Therefore to change these settings the simplest way is as follows:
1. Run notepad/wordpad as administrator.
2. Open "override.js" file found in SVP 4 program folder, inside the script folder (you will have to select all files from the drop down list to see it.)
3. Search for each of the settings mentioned before and do the following:
4. Remove the double foward slash at the beginning of the line.
5. Change the values: 4 for "analyse.main.search.type", -10 for "analyse.main.search.coarse.distance".
6. Save and test.
The values have only been tested specifically with the profile settings used by Fabulist, but editing these values should work the same way with different profile settings.

This may still not be enough to achieve the same interpolated video quality because with one of my computers I was having issues with Avisynth MT 2.6 and Avisynth+ that can be used by SVP 4. Frames were being skipped/repeating with no indication in the EVR information overlay and was hard to percieve using 1.5m interpolation mode (I had to use uniform mode.) This made some interpolated frames remain on screen for twice as long, which makes them more noticable compared to using Avisynth 2.5 MT used by defualt with SVP 3. This problem did not exist on my other computer so I cannot recommend a definate fix if you have a similar problem to this.

I would also like to recommend trying these settings which I use on a regular basis and give me minimal artifacts in SVP 4 by default. It also (as far as I can tell) gives smoother motion because of uniform interpolation mode and uses a lot less CPU resources.

Hope this helps!

Excellent results ThomasLiddiard, this information will get me back into testing stuff out myself. More importantly, this is vital information for the developers, which should help them better tweak SVP 4 / or provide a different set of rules and options which are comparable to SVP 3.0.

Also, I would like to note that this is not about my settings, which were a mere example, under most situations artifacting (haloing specifically) happens more often and at a higher scale.

Thank you for your time, I will report back when able, I hope others do so as well.