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8th April 2020, 11:23 | #542 | Link | |
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Much depends on the particular noise/grain of the source. There is no one fits all filter. Last edited by Sharc; 8th April 2020 at 12:34. |
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8th April 2020, 12:39 | #543 | Link |
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KNLMeansCL could be one to test. Maybe add some motion compensation with MVTools.
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8th April 2020, 12:43 | #544 | Link | |
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I.e. SMDegrain that I correctly use. On some reels I have to use tr>3 and it’s where VS stops being of any use.
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8th April 2020, 12:47 | #545 | Link |
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The higher tr is, the better the results, mostly on fast speed scenes. Strong settings is all another matter. On really old BW movies I have to use tr=9 with lot less detail loss than tr=3.
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8th April 2020, 12:55 | #547 | Link | |
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It would be interesting to have sample clips of before and after filtering of one severe case where a high temporal radius is needed. I personally never go above 1 when denoising, but then again, I prefer keeping things as close to the original as it's possible.
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8th April 2020, 12:57 | #548 | Link | |
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Again: higher tr means more precise results as motion vectors. High thSAD is where details start be lost.
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8th April 2020, 13:00 | #550 | Link | |
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On very high quality scans, i.e. 4k or more, you can easily see the single silver particle grain. Anyway we are going OT. All i need is a VS MVTools with support for tr>3
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8th April 2020, 13:14 | #551 | Link | |
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Only affects the detection of motion, indirectly to the results.
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8th April 2020, 13:16 | #552 | Link |
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Unless scene change (and it is the main limit of MVTools), object mostly tend to move in a way that the more frames you sample, the best interpolation you can get. I don't know exactly the MV algorithm but at least on math, to have good interpolation and extrapolation, you need data, the more, the better.
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8th April 2020, 13:32 | #553 | Link |
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Also every mvtools based deboiser can't really denoise single frames with sudden changes like flashes, explosions etc (typically found in action animes) becouse it does not have any reference frames to work with.
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AVSRepoGUI // VSRepoGUI - Package Manager for AviSynth // VapourSynth VapourSynth Portable FATPACK || VapourSynth Database Last edited by ChaosKing; 8th April 2020 at 13:40. |
8th April 2020, 13:38 | #554 | Link | |
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Nothing last one frame only, unless it is flash from a photo. The more frames you can sample, the better results. With very grainy noise, it’s absolutely impossible to denoise a fast moving object with tr=3. You could have to rise until 9 on some material. I did many many times. I have a collection of almost 3 thousand DVD and BD, plus digital transfers of reels. I am not rich, I simply collect things people want to throw. I know what I am talking about.
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12th April 2020, 18:06 | #555 | Link |
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By the way, changing SMDegrain to support tr 1-6 should not be very hard. If you take a look at MCTemporalDenoise inside havsfunc, you can see how it is done there. I didn't check the function thoroughly, but there are a few things that need to be done, basically copying the functionality which is already done for deltas 1-3 and then do the degraining with weighted merging.
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12th April 2020, 18:17 | #556 | Link | |
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12th April 2020, 18:46 | #557 | Link | |
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12th April 2020, 18:57 | #559 | Link |
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I don't think tormento would mind blurring And the limit parameter could be used to control it quite well as the default seems to be 255..
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