VsTTempSmooth
From Avisynth wiki
| Abstract | |
|---|---|
| Author | Asd-g |
| Version | v1.2.3 |
| Download | vsTTempSmooth-1.2.3.7z |
| Category | Temporal Denoisers |
| License | GPLv2 |
| Discussion | |
Contents |
Description
vsTTempSmooth is a motion adaptive (it only works on stationary parts of the picture), temporal smoothing filter.
vsTTempSmooth is a port of the VapourSynth plugin TTempSmooth.
Requirements
- [x86]: AviSynth+ or AviSynth 2.6
- [x64]: AviSynth+
- Progressive input only
- Supported color formats: Y8, YV12, YV16, YV24
- AviSynth+: all planar Y/YUV/YUVA formats (8/10/12/14/16/32-bit) are supported.
- *** vcredist_x86.exe is required for vsTTempSmooth-x86
- *** vcredist_x64.exe is required for vsTTempSmooth-x64
Syntax and Parameters
- vsTTempSmooth (clip, int "maxr", int "ythresh", int "uthresh", int "vthresh", int "ymdiff", int "umdiff", int "vmdiff", int "strength", float "scthresh", bool "fp", int "y", int "u", int "v", clip "pfclip", int "opt")
- clip =
- A clip to process. It must be Y/YUV(A) 8..32-bit format.
- clip =
- int maxr = 3
- This sets the maximum temporal radius. By the way it works vsTTempSmooth automatically varies the radius used... This sets the maximum boundary.
- Must be between 1 and 7. At 1 vsTTempSmooth will be (at max) including pixels from 1 frame away in the average (3 frames total will be considered counting the current frame). At 7 it would be including pixels from up to 7 frames away (15 frames total will be considered). With the way it checks motion there isn't much danger in setting this high, it's basically a quality vs. speed option. Lower settings are faster while larger values tend to create a more stable image.
- int maxr = 3
- int ythresh = 4
- Luma threshold for differences of pixels between frames. vsTTempSmooth checks 2 frame distance as well as single frame, so these can usually be set slightly higher than with most other temporal smoothers and still avoid artifacts.
- Must be between 1 and 256.
- Also important is the fact that as long as
ymdiffis less than the threshold value then pixels with larger differences from the original will have less weight in the average. Thus, even with rather large thresholds pixels just under the threshold wont have much weight, helping to reduce artifacts.
- int ythresh = 4
- int uthresh = 5
- int vthresh = 5
- Same as ythresh but for the chroma planes (u, v).
- Must be between 1 and 256.
- int uthresh = 5
- int ymdiff = 2
- Any pixels with differences less than or equal to
ymdiffwill be blurred at maximum. Usually, the larger the difference to the center pixel the smaller the weight in the average.ymdiffmakes vsTTempSmooth treat pixels that have a difference of less than or equal toymdiffas though they have a difference of 0. In other words, it shifts the zero difference point outwards. Setymdiffto a value equal to or greater thanythresh-1to completely disable inverse pixel difference weighting. - Applied only to the luma plane.
- Must be between 0 and 255.
- Any pixels with differences less than or equal to
- int ymdiff = 2
- int umdiff = 3
- int vmdiff = 3
- Same as
ymdiffbut for the chroma planes (u, v). - Must be between 0 and 255.
- Same as
- int umdiff = 3
- int strength = 2
- vsTTempSmooth uses inverse distance weighting when deciding how much weight to give to each pixel value. The strength option lets you shift the drop off point away from the center to give a stronger smoothing effect and add weight to the outer pixels. It does for the spatial weights what mdiff does for the difference weights.
- int strength = 2
- 1 = 0.13 0.14 0.16 0.20 0.25 0.33 0.50 1.00 0.50 0.33 0.25 0.20 0.16 0.14 0.13
- 2 = 0.14 0.16 0.20 0.25 0.33 0.50 1.00 1.00 1.00 0.50 0.33 0.25 0.20 0.16 0.14
- 3 = 0.16 0.20 0.25 0.33 0.50 1.00 1.00 1.00 1.00 1.00 0.50 0.33 0.25 0.20 0.16
- 4 = 0.20 0.25 0.33 0.50 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.50 0.33 0.25 0.20
- 5 = 0.25 0.33 0.50 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.50 0.33 0.25
- 6 = 0.33 0.50 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.50 0.33
- 7 = 0.50 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.50
- 8 = 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
- The values shown are for
maxr=7, when using smaller radius values the weights outside of the range are simply dropped. Thus, setting strength to a value ofmaxr+1or higher will give you equal spatial weighting of all pixels in the kernel. - Must be between 1 and 8.
- The values shown are for
- float scthresh = 12.0
- The standard scenechange threshold as a percentage of maximum possible change of the luma plane. A good range of values is between 8 and 15.
- Set to 0 to disable scenechange detection.
- Must be between 0.0 and 100.0.
- float scthresh = 12.0
- bool fp = true
- When true will add any weight not given to the outer pixels back onto the center pixel when computing the final value and it's much better for reducing artifacts in motion areas and usually produces overall better results. When false will just do a normal weighted average.
- bool fp = true
- int y = 3
- int u = 3
- int v = 3
- Planes to process.
- 1: Return garbage.
- 2: Copy plane.
- 3: Process plane.
- Planes to process.
- int y = 3
- clip pfclip =
- This allows you to specify a separate clip for vsTTempSmooth to use when calculating pixel differences. This applies to checking the motion thresholds, calculating inverse difference weights, and detecting scenechanges. Basically, the
pfclipwill be used to determine the weights in the average but the weights will be applied to the original input clip's pixel values.
- This allows you to specify a separate clip for vsTTempSmooth to use when calculating pixel differences. This applies to checking the motion thresholds, calculating inverse difference weights, and detecting scenechanges. Basically, the
- clip pfclip =
- int opt = -1
- Sets which cpu optimizations to use.
- -1: Auto-detect.
- 0: Use C++ code.
- 1: Use SSE2 code.
- 2: Use AVX2 code.
- 3: Use AVX-512 code.
- Sets which cpu optimizations to use.
- int opt = -1
Examples
vsTTempSmooth with default settings:
AviSource("Blah.avi") vsTTempSmooth(maxr=3, ythresh=4, uthresh=5, vthresh=5, ymdiff=2, umdiff=3, vmdiff=3, strength=2, scthresh=12.0, fp=true, y=3, u=3, v=3)
Changelog
Version Date Changes
v1.2.3 2023/03/04 - Improved SIMD code. (@DTL2020). v1.2.2 2023/03/02 - Fixed used frames for scene change detection. - Fixed memory allocation for inverse pixel difference weighting. - Fixed inverse pixel difference weighting to work properly for every processed plane. v1.2.1 2023/02/28 - Fixed processing with float clips. (regression from 1.2.0) - Added parameter opt. - Added SSE2, AVX2, AVX-512 code. - Fixed earlier exit of the scene change detection. - Fixed memory misalignment. v1.2.0 2023/02/27 - Fixed crash when releasing memory. - Changed the type of parameters y, u, v to int. v1.1.3 2020/08/24 - Throw error for non-planar formats. v1.1.2 2020/06/11 - Fixed memory leak. v1.1.1 2020/05/31 - Fixed memory misalignment for AviSynth 2.6. v1.1.0 2020/05/30 - Added scthresh paramter. v1.0.0 2020/05/28 - Initial release - Port of the VapourSynth plugin TTempSmooth.
External Links
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