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6th February 2017, 03:32 | #42302 | Link |
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In my video examples, the higher the algorithm is set, the better it looks.
I would probably not use medium either - which is puzzling since on the Mario image I wasn't bothered at all by it.
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6th February 2017, 07:15 | #42303 | Link | |
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NGU pix low isn't terrible, but NNEDI3 16 handles thick low res lines more elegantly. So I had a look vs NNEDI3 on the HTPC, the high preset is the closest in terms of visual appearance to NNEDI3 with how it enhances lines. Very high is more aggressive with parts of the image which is thinks are not lines and sometimes removes them (yes they're blurry but NNEDI3 does not do this) So in this way it seems to operate very much like NGU. Basically NGU just comes off as a tad aggressive with how it operates on lines to me, even with this version of it. When I compare the original image upscaled with Lanczos to NNEDI3 64 neurons + my Avisynth profile it looks similar in appearance just more refined, lines are similar in shape and appearance. With NGU pix in places there's shrinking of lines, some areas it works nicely with line edges curving them naturally and in other places it just looks a bit off. NNEDI3 is more natural with lines and in places it's sharper too which just gives it a more drawn feel to it where as NGU just looks rather bland almost artifical in appearance by comparison, this is more important to me than anything else. NGU pix might be a better fit for me with upscaling 720p content due to the extra resolution (will have to take a look) but for DVD level stuff I'm sticking with NNEDI3. Basically you'd have to improve on what I almost consider to be basically perfect for my use case. I guess I'll have to upload pictures to show you, my guess it will be hard to make me replace NNEDI3, it's a great alternative only IMO because obviously in certain situations it shines, just not for me where I need it most. Last edited by ryrynz; 6th February 2017 at 10:30. |
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6th February 2017, 07:25 | #42304 | Link | |
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3) Yes because NGU pixart looks better for low quality sources and NGU already looks better for high quality sources. 4) I've liked super-xbr because it looks good and requires little power to run. But NGU pixart on low runs just as fast and looks better than super-xbr for low quality sources. Regular NGU on low looks pretty much the same as super-xbr for high quality sources, and runs at the same speed. So I don't see the need for super-xbr anymore. |
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6th February 2017, 08:14 | #42305 | Link | |
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6th February 2017, 09:09 | #42306 | Link | |
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I don't see any differences between the chroma upscaling options, from different passes to different algorithms, on low resolution low quality video, so I used the same one. For chroma doubling, you are restricted to choosing what you want based on the luma option, so I left that on default as well. The changes are obvious in luma doubling. In the mario picture, pixart low doesn't look that great, but neither does nnedi3 compared to pixart very high. In my sources, with actual people, pixart low performs better than in the mario. I would choose it over any configuration with nnedi3 or superxbr. Again though, with my sources, veryhigh pixart looks very good, just like in the mario. |
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6th February 2017, 10:22 | #42307 | Link | ||||||
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Thank you - coming from you this means high praise! I'll reply to your question via PM. Quote:
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FWIW, it seems most other users actually prefer NGU pixart over NNEDI3, or at least don't prefer NNEDI3, so I might end up removing NNEDI3 soon, unless I find evidence that NGU pixart is really clearly worse in some situations. Quote:
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6th February 2017, 10:55 | #42308 | Link |
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Well, you say they are pretty much the same except that NGU smooth looks better for low quality images. But then again speed does depend on chroma so super-xbr is still faster in some cases. Since I would prefer one algorithm that handles more cases over several different ones, overall I still prefer super-xbr for now.
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6th February 2017, 11:08 | #42309 | Link | |
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I'll be able to show you this, but you may not deem the differences significant enough which has me a little concerned. Adding blue edges and a touch of sharpness seems to bring things closer in line to NNEDI3 but there's still that slightly more aggressive line creation/deletion going on which I don't like. Why does NGU pix very high look a good step more unnatural than high? Scaling up NNEDI3 looks the same regardless, the lines just get better though beyond 64 neurons almost seems pointless in many situations but it least it looks the same, with NGU you get one step forward and one step sideways, they're all quite different in appearance. I guess I'm going to have to take a lot of screenshots.. Any way.. I can duplicate an issue with scaling although this applies to NNEDI3 on screen not NGU. If I start a video using NGU pix (let madVR decide everything) and then switch to NNEDI3 (any neurons, let madVR decide everything) NNEDI3 doesn't activate and I get whatever madVR chose (in this case bicubic 60 all the way). If I change neuron count then NNEDI3 applies properly. This is using D3D9 on the Intel HD4000. Last edited by ryrynz; 6th February 2017 at 11:17. |
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6th February 2017, 11:31 | #42310 | Link | ||
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Unnatural or not, I'll wait for your screenshots. Quote:
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6th February 2017, 11:39 | #42311 | Link | |
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Same for pixart, to a greater extent probably, higher NGU levels look quite a bit better than low/super-xbr. As for having one algorithm that works for all cases, you still have to make profiles for different content if you want optimal settings, so it doesn't really matter. |
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6th February 2017, 13:53 | #42313 | Link |
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Pixart doesn't seem to do 4X upscaling yet so I can only assume quality will be even better later. Tested it quickly watching older Simpsons and Futurama (meaning: closer to that hand-drawn style) and it works very, very well. Definitely will use it instead of NNEDI myself.
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6th February 2017, 14:23 | #42314 | Link | |
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6th February 2017, 15:07 | #42315 | Link |
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I guess I could, but I'm not sure if it's worth it since I can only use NNEDI16 before my GPU fan goes nuts. I can use NGU or pixart medium with almost completely silent fan, so it's more of a performance thing for me, although I DO like NGU more also quality-wise. I'll check later if I can find some good examples anyways.
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6th February 2017, 18:17 | #42316 | Link |
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I am happy that I chose rx 470 over rx 460
Still can't use NGU Very High but by seeing some people mentioning ''unnatural'' look I am calm with NGU med. @Madshi confess it,you get paid by AMD and NVidiots.... I see in the future GPUs with ''MadVR optimized'' sticker in the box. |
6th February 2017, 18:53 | #42319 | Link | |
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Source sample (frame 80).
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I'm infected with poor sources. Last edited by cork_OS; 6th February 2017 at 19:11. |
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Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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