Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion. Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules. |
14th March 2017, 01:43 | #43061 | Link | |
Registered User
Join Date: Feb 2002
Location: San Jose, California
Posts: 4,406
|
Quote:
I much prefer sharpening with Upscaling Refinement as opposed to Image Enhancement but the effect is not as strong with the same settings.
__________________
madVR options explained |
|
14th March 2017, 01:44 | #43062 | Link |
Registered User
Join Date: Dec 2014
Posts: 1,127
|
Yes, that's correct. But only if you are outputting at 1080p. 1080p -> 2160p involves upscaling, so you'll want to use upscaling refinement.
__________________
HOW TO - Set up madVR for Kodi DSPlayer & External Media Players Last edited by Warner306; 14th March 2017 at 01:52. |
14th March 2017, 01:46 | #43063 | Link |
Registered User
Join Date: Feb 2002
Location: San Jose, California
Posts: 4,406
|
__________________
madVR options explained |
14th March 2017, 02:12 | #43064 | Link | |
X Cinema Projectionist NZ
Join Date: Feb 2006
Location: Auckland NZ
Posts: 310
|
Quote:
What I want to know then is, should I use Image enhancements or Upscaling refinement if I want to add a bit of extra sharpness? |
|
14th March 2017, 03:04 | #43065 | Link |
Registered User
Join Date: Nov 2016
Posts: 181
|
disable GPU gamma ramps
Hi. Can someone explain to me how "disable GPU gamma ramps" option works? I have 2 separate calibrations. One for madvr (3d lut file) and one for windows (matrix icc v4 file). If I enable the "disable GPU gamma ramps" option, does madvr ignore the windows calibration?
__________________
"To infinity, and beyond!" |
14th March 2017, 03:10 | #43066 | Link |
Registered User
Join Date: Mar 2016
Location: Switzerland
Posts: 140
|
Is there any way to use NGU Sharp (med) for chroma doubling with NGU Sharp (high) for luma doubling ?
When I select "very high" for chroma doubling, it doesn't let me when "high" is selected for luma doubling. I try to do this : artifact removal : reduce banding artifacts medium & high chroma upscaling : NGU Anti-Alias (high) image downscaling : Bicubic150 + AR [relaxed] luma doubling : NGU Sharp (high) 2x supersampling chroma doubling : NGU Sharp (med) 2x supersampling image upscaling : Jinc + AR upscaling refinement : add grain 3 dithering : Ordered + colored noise + change dither I don't think that NGU Sharp (med) for chroma doubling is a bad choice considering the rest of the configuration. The limit for chroma doubling should be equal or at maximum one step below the luma doubling IMO, not two... @madshi ? any chance to change this ? Last edited by Neo-XP; 14th March 2017 at 20:11. |
14th March 2017, 03:31 | #43069 | Link | |
X Cinema Projectionist NZ
Join Date: Feb 2006
Location: Auckland NZ
Posts: 310
|
Quote:
Im sorry you are so upset with me asking a question! Last edited by 70MM; 14th March 2017 at 03:40. |
|
14th March 2017, 03:45 | #43071 | Link |
Registered User
Join Date: Dec 2014
Posts: 1,127
|
I'd use NGU Sharp, as it doesn't require added sharpening. If I wanted to add sharpening, I'd use SuperRes under upscaling refinement. But it isn't necessary with NGU Sharp.
__________________
HOW TO - Set up madVR for Kodi DSPlayer & External Media Players |
14th March 2017, 04:12 | #43072 | Link | |||
Registered User
Join Date: Nov 2012
Posts: 32
|
Quote:
Quote:
Quote:
I was only confirming what you said in the below quotation, not accusing you...
__________________
Best Regards! Leo! |
|||
14th March 2017, 04:50 | #43073 | Link |
Registered User
Join Date: Nov 2012
Posts: 32
|
SVP it's already without GPU acceleration, thanks for suggesting it.
I think that SVP + madVR NGU HIGH is the max that I can use for low res (480/576) -> 1080, but picture quality is amazing and some artifacts depends only from the frame rate conversion. so I really thank Madshi for his works!!!
__________________
Best Regards! Leo! |
14th March 2017, 05:27 | #43074 | Link | |
Registered User
Join Date: Jan 2014
Posts: 123
|
Quote:
The issue is not apparent when using the Enhanced Video Renderer (custom presenter), and MPC-HC's internal Fullscreen options to switch video refresh rates. It thus looks like the issue is limited to when madVR is used as the renderer in MPC-HC. Does anyone have a solution for this? |
|
14th March 2017, 07:55 | #43075 | Link |
Registered User
Join Date: Mar 2009
Posts: 3,646
|
My own testing shows different results, while I am a fan of NNEDI3 for chroma it's performance impact for it isn't what I'm prepared to pay. Also I've seen super-xbr come off sharper in situations than NNEDI3 which I prefer the look of as well, so I've drawn my own conclusions with this after many hours and hundreds of screenshots of inspection, I know exactly what I'm getting.
Last edited by ryrynz; 14th March 2017 at 13:22. |
14th March 2017, 10:12 | #43076 | Link |
Registered User
Join Date: May 2009
Posts: 115
|
Hey guys, so I'm a little confused about how switching on some of the functions behave, in particular upscaling for 4K, anti-ringing for SSIM, and 200% super sampling for NNEDI3.
To begin with, I should mention that my source is a 4K video being played back on a 1080p display. If it matters, it comes from a UHD source which contains HDR merged/converted using pixel shader math. So for the first issue, I'm confused why changing any of the upscaling options as any effect AT ALL when the only possible configuration I could obviously have of the video is downscaling. For the second issue, how in the world would the anti-ringing filter when applied to anything (in this case only to the SSIM algorithm) result in the image being sharper? In this case, it's a significant difference too. Lastly, never mind that it shouldn't do anything anyway given the mentioned setup, why does super sampling completely screw up and otherwise also have the opposite effect of blurring the image if using the NNEDI3 algorithm? Thanks in advance to anyone who may have a clue XD PS- I've had this question in mind for a while and was wondering if there was any real answer to it. With pretty much any scaling or other related options (excluding any image enhancements or sharpness refinement of course), do any of them actually add sharpness (as in contrast that's added between line edges) to the picture or in each case does it simply bring out more/less of the original image in its original resolution closer to if it were like a vector object? If it's the latter, would it be accurate to say that the sharper the image becomes, the better/more accurate it is, where it then just becomes a matter of lowering the sharpness on your display? I get that there can be parallel differences depending on the algorithm where increases in sharpness may be in different areas, but that aside... Obviously if I max everything out, the image appears to be overly sharp but, again, if the previous statement is accurate, this I guess would simply be because the picture was overcompensated for prior to the optimized/more accurate rendering provided by MadVR. |
14th March 2017, 13:20 | #43077 | Link | |
Registered User
Join Date: Mar 2016
Location: Switzerland
Posts: 140
|
Quote:
Last edited by Neo-XP; 14th March 2017 at 18:25. |
|
14th March 2017, 13:30 | #43078 | Link | ||||
Registered User
Join Date: Jun 2007
Posts: 68
|
Quote:
Image upscaling will only apply in this case if you've asked it to always supersample (I assume) and that's because you've told it to do so (hence the option called "always - supersampling"). Quote:
Quote:
I believe what you are seeing is the interaction of how NNEDI "fills in the gaps" so to speak, then the downscaling algo interacting with NNEDI after that. The additional gap fill in seems to give it a better "anti-aliased" look, which you may percieve as a decrease in sharpness. But there is no detail loss. And I wouldn't call it blurring the image. I expect in your test you are looking at scene with high contrast edges only, or a test pattern? Quote:
The algos result in different levels of perceived sharpness. There's no way to tell what it really should be (i.e. accuracy), unless you are doing a comparison with a "groundtruth", that is downscaled, then upscaled. Then it introduces a dependency on the downscaling algo anyway, so its great for your controlled test but on other sources, who knows?? Downscaling might be a different affair but I don't know too much about this stuff. Sharpness is not accuracy itself. I think a reason why madVR users appreciate the choices is that everyone can choose an option that suits their taste in sharpess, detail retention (or interpolation) and real-time performance, whilst considering the input quality of their sources. Last edited by webs0r; 14th March 2017 at 13:33. |
||||
14th March 2017, 14:09 | #43079 | Link |
Registered User
Join Date: May 2009
Posts: 115
|
webs0r,
For upscaling, I wasn't talking about the chroma channel. For the anti-ringing filter, were you trying it out with a 4k video? Regarding NNEDI, no, it has the opposite effect on it vs. any other algorithm, and it actually does appear as a loss in detail/accuracy. Also, I mentioned that I was playing/testing this with a native 4K video, and it wasn't a test pattern; it was a demo nature video used by Samsung to showcase their Quantum Dot displays. I was watching it on a 1080p display though. With respect to what upscaling is intended for, well, that's what I already knew and I guess the further logic of what you said makes sense. I guess I was wondering what someone really knowledgeable would make of what I further said. My main intention in the end would really just be to retain as much detail as possible without LOSING any sharpness. I would imagine there's a somewhat objective way of finding which options together give you that best. Last edited by Ditto666; 14th March 2017 at 23:13. |
Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
Thread Tools | Search this Thread |
Display Modes | |
|
|