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Old 11th November 2008, 16:10   #1  |  Link
LaTo
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LSFmod [v1.9 - Update 2009/10/05]

Code:
################################################################################################
###                                                                                          ###
###                       LimitedSharpenFaster MOD : function LSFmod()                       ###
###                                                                                          ###
###                                Modded Version by LaTo INV.                               ###
###                                                                                          ###
###                                  v1.9 - 05 October 2009                                  ###
###                                                                                          ###
################################################################################################
###
###
### +--------------+
### | DEPENDENCIES |
### +--------------+
###
### -> Masktools    (v2a36)
### -> Removegrain  (v1.0pre)
### -> Warpsharp    (2003.11.03) [for Smode=1]
### -> Variableblur (v0.30)      [for Smode=2]
###
###
###
### +-------+
### | USAGE |
### +-------+
###
### LSFmod( strength, Smode, Smethod, kernel, 
###         preblur, secure, source,
###         Szrp, Spwr, SdmpLo, SdmpHi,
###         Lmode, overshoot, undershoot, overshoot2, undershoot2,
###         soft, soothe, keep,
###         edgemode, edgemaskHQ,
###         ss_x, ss_y, dest_x, dest_y,
###         show, screenW, screenH,
###         defaults )
###
###
###
### +---------+
### | GENERAL |
### +---------+
###
### strength [int]
### --------------
### Strength of the sharpening
###
### Smode [int: 1,2,3,4,5]
### ----------------------
### Sharpen mode:
###    =1 : Unsharp masking (from warpsharp)
###    =2 : Unsharp masking (from variableblur) 
###    =3 : Range sharpening
###    =4 : Nonlinear sharpening (original  version)
###    =5 : Nonlinear sharpening (corrected version)
###
### Smethod [int: 1,2,3]
### --------------------
### Sharpen method: (only used in Smode=3,4,5)
###    =1 : 3x3 kernel
###    =2 : Min/Max
###    =3 : Min/Max + 3x3 kernel
###
### kernel [int: 11,12,19,20]
### -------------------------
### Kernel used in Smethod=1&3
### In strength order: + 19 > 12 >> 20 > 11 -
###
###
###
### +---------+
### | SPECIAL |
### +---------+
###
### preblur [string: "ON","OFF",...]
### --------------------------------
### Mode to avoid noise sharpening & ringing (only used in Smode=3,4,5)
### "ON" is sufficient to prevent ringing, but to prevent noise sharpening you should set your own denoiser
###    Usage:   LSFmod(preblur="YourFavoriteDenoiser()")
###    Example: LSFmod(preblur="FFT3Dfilter(sigma=4,plane=0)")
###
###
### secure [bool]
### -------------
### Mode to avoid banding & oil painting (or face wax) effect of sharpening
### (only used in Smode=3,4,5)
###
### source [clip]
### -------------
### If source is defined, LSFmod doesn't sharp more a denoised clip than this source clip
### In this mode, you can safely set Lmode=0 & PP=off
###    Usage:   denoised.LSFmod(source=source)
###    Example: last.FFT3Dfilter().LSFmod(source=last,Lmode=0,soft=0)
###
###
###
### +----------------------+
### | NONLINEAR SHARPENING |
### +----------------------+
###
### Szrp [int]
### ----------
### Zero Point:
###    - differences below Szrp are amplified (overdrive sharpening)
###    - differences above Szrp are reduced   (reduced sharpening)
###
### Spwr [int]
### ----------
### Power: exponent for sharpener
###
### SdmpLo [int]
### ------------
### Damp Low: reduce sharpening for small changes [0:disable]
###
### SdmpHi [int]
### ------------
### Damp High: reduce sharpening for big changes [0:disable]
###
###
###
### +----------+
### | LIMITING |
### +----------+
###
### Lmode [int: ...,0,1,2,3,4]
### --------------------------
### Limit mode:
###    <0 : Limit with repair (ex: Lmode=-1 --> repair(1), Lmode=-5 --> repair(5)...)
###    =0 : No limit
###    =1 : Limit to over/undershoot
###    =2 : Limit to over/undershoot on edges and no limit on not-edges
###    =3 : Limit to zero on edges and to over/undershoot on not-edges
###    =4 : Limit to over/undershoot on edges and to over/undershoot2 on not-edges
###
### overshoot [int]
### ---------------
### Limit for pixels that get brighter during sharpening
###
### undershoot [int]
### ----------------
### Limit for pixels that get darker during sharpening
###
### overshoot2 [int]
### ----------------
### Same as overshoot, only for Lmode=4
###
### undershoot2 [int]
### -----------------
### Same as undershoot, only for Lmode=4
###
###
###
### +-----------------+
### | POST-PROCESSING |
### +-----------------+
###
### soft [int: -2,-1,0...100]
### -------------------------
### Soft the sharpening effect (-1 = old autocalculate, -2 = new autocalculate)
###
### soothe [bool]
### -------------
###    =true  : Enable soothe temporal stabilization
###    =false : Disable soothe temporal stabilization
###
### keep [int: 0...100]
### -------------------
### Minimum percent of the original sharpening to keep (only with soothe=true)
###
###
###
### +-------+
### | EDGES |
### +-------+
###
### edgemode [int: -1,0,1,2]
### ------------------------
###    =-1 : Show edgemask
###    = 0 : Sharpening all
###    = 1 : Sharpening only edges
###    = 2 : Sharpening only not-edges
###
### edgemaskHQ [bool]
### -----------------
###    =true  : Original edgemask
###    =false : Faster edgemask
###
###
###
### +------------+
### | UPSAMPLING |
### +------------+
###
### ss_x ; ss_y [float]
### -------------------
### Supersampling factor (reduce aliasing on edges)
###
### dest_x ; dest_y [int]
### ---------------------
### Output resolution after sharpening (avoid a resizing step)
###
###
###
### +-------+
### | DEBUG |
### +-------+
###
### show [bool]
### -----------
### Show debug clip & informations
###
### screenW ; screenH [int]
### -----------------------
### Screen resolution (for show clip)
###
###
###
### +----------+
### | SETTINGS |
### +----------+
###
### defaults [string: "old" or "slow" or "fast"]
### --------------------------------------------
###    = "old"  : Reset settings to original version (output will be THE SAME AS LSF)
###    = "slow" : Enable SLOW modded version settings
###    = "fast" : Enable FAST modded version settings
###  --> /!\ [default:"fast"]
###
###
### defaults="old" :  - strength    = 100
### ----------------  - Smode       = 3
###                   - Smethod     = Smode==3?2:1
###                   - kernel      = 11
###
###                   - preblur     = "OFF"
###                   - secure      = false
###                   - source      = undefined
###
###                   - Szrp        = 16
###                   - Spwr        = 2
###                   - SdmpLo      = strength/25
###                   - SdmpHi      = 0
###
###                   - Lmode       = 1
###                   - overshoot   = 1
###                   - undershoot  = overshoot
###                   - overshoot2  = overshoot*2
###                   - undershoot2 = overshoot2
###
###                   - soft        = 0
###                   - soothe      = false
###                   - keep        = 25
###
###                   - edgemode    = 0
###                   - edgemaskHQ  = true
###
###                   - ss_x        = Smode==3?1.50:1.25
###                   - ss_y        = ss_x
###                   - dest_x      = ox
###                   - dest_y      = oy
###
###                   - show        = false
###                   - screenW     = 1280
###                   - screenH     = 1024
###
###
### defaults="slow" : - strength    = 100
### ----------------- - Smode       = 5
###                   - Smethod     = 3
###                   - kernel      = 11
###
###                   - preblur     = "OFF"
###                   - secure      = true
###                   - source      = undefined
###
###                   - Szrp        = 16
###                   - Spwr        = 4
###                   - SdmpLo      = 4
###                   - SdmpHi      = 48
###
###                   - Lmode       = 4
###                   - overshoot   = strength/100
###                   - undershoot  = overshoot
###                   - overshoot2  = overshoot*2
###                   - undershoot2 = overshoot2
###
###                   - soft        = -2
###                   - soothe      = true
###                   - keep        = 20
###
###                   - edgemode    = 0
###                   - edgemaskHQ  = true
###
###                   - ss_x        = 1.50
###                   - ss_y        = ss_x
###                   - dest_x      = ox
###                   - dest_y      = oy
###
###                   - show        = false
###                   - screenW     = 1280
###                   - screenH     = 1024
###
###
### defaults="fast" : - strength    = 100
### ----------------- - Smode       = 3
###                   - Smethod     = 2
###                   - kernel      = 11
###
###                   - preblur     = "OFF"
###                   - secure      = true
###                   - source      = undefined
###
###                   - Szrp        = 16
###                   - Spwr        = 4
###                   - SdmpLo      = 4
###                   - SdmpHi      = 48
###
###                   - Lmode       = 1
###                   - overshoot   = strength/100
###                   - undershoot  = overshoot
###                   - overshoot2  = overshoot*2
###                   - undershoot2 = overshoot2
###
###                   - soft        = 0
###                   - soothe      = true
###                   - keep        = 20
###
###                   - edgemode    = 0
###                   - edgemaskHQ  = false
###
###                   - ss_x        = 1.25
###                   - ss_y        = ss_x
###                   - dest_x      = ox
###                   - dest_y      = oy
###
###                   - show        = false
###                   - screenW     = 1280
###                   - screenH     = 1024
###
################################################################################################

Update 2009.10.05 : LSFmod v1.9


v1.9:
tweaked settings
default preset is now defaults="fast" /!\

v1.8:
changed preblur to allow more tweaking (bool->string)
tweaked settings
cleaned the code
updated documentation

v1.7:
changed Smethod=4 to "source"

v1.6:
added preblur option
added new Smethod=4

v1.5:
fixed LUT expression (thanks to Didée)
changed Smethod to Smethod+secure

v1.4:
changed defaults="new" to defaults="slow" & defaults="fast"
added show parameter
cleaned a little the code

v1.3:
changed a little Smethod=3&5 (same effect, but more precise)
added new calculation for soft (soft=-2) [default on]
added warning about bad settings (no more silent)
updated the documentation

v1.2:
added new Lmode<0 (limit with repair)
added 2 new Smode (unsharp masking)
changed Smode order: now old Smode3-4 is new Smode3-4 to avoid mistake

v1.1:
fixed a bug with dest_x!=ox or dest_y!=oy
replaced Lfactor by over/undershoot2

v1.0:
deleted old Smode(1-4), added new Smode(1-3) & Smethod(1-5)
added parameters for nonlinear sharpening (Szrp,Spwr,SdmpLo,SdmpHi)
corrected the nonlinear formula
added new Lmode 2 & 4 + fixed Lmode 0
added faster edgemask
added soothe temporal stabilization, 2 parameters: soothe & keep
replaced lanczosresize by spline36resize
moved "strength" parameter (first place)
deleted wide, special and exborder
changed some code (cosmetic)
added "defaults" parameter (to switch between original and modded version)
added documentation


Quote:

Last edited by LaTo; 3rd June 2010 at 17:57.
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Old 11th November 2008, 16:13   #2  |  Link
LaTo
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A small mod (with new options, improvements...) needed for MCTemporalDenoise v1.0.00...

Speed comparaison (with v1.9):
Code:
LimitedSharpenFaster()  = 17.4 fps
LSFmod(defaults="fast") = 16.8 fps
LSFmod(defaults="slow") = 7.6 fps

Last edited by LaTo; 5th October 2009 at 18:02.
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Old 11th November 2008, 17:08   #3  |  Link
pitch.fr
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w00t, LaTo does it again

so atm I'm using LimitedSharpenFaster(ss_x=1.0,ss_y=1.0,strength=40)

an improved(speed-wise? PQ-wise?) LSFmod call would be : LSFmod(Smode=3,ss_x=1.0,ss_y=1.0,strength=40) ?

I dunno what do to with Smethod...

any chance you could use the limitedsupport.dll for realtime speed increase ?



EDIT: w00ps, LSF is 310fps, LSFmod is 113

Last edited by pitch.fr; 11th November 2008 at 17:10.
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Old 11th November 2008, 17:22   #4  |  Link
LaTo
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Quote:
Originally Posted by pitch.fr View Post
EDIT: w00ps, LSF is 310fps, LSFmod is 113
change Lmode to 1 & soothe to false for speed
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Old 11th November 2008, 19:10   #5  |  Link
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ok, thanks for the tip!

so LSFmod(Smode=3,Lmode=1,ss_x=1.0,ss_y=1.0,strength=40,soothe=false) is 290fps

still a bit slower than the LSF that uses limitedsupport.dll, any chance you could use it ?
I might as well mod your script and call it LSFMod2()

is there any point using this LSFMod call over the original one ? you said you "fixed" some stuff if I got it right
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Old 11th November 2008, 19:14   #6  |  Link
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Quote:
Originally Posted by pitch.fr View Post
still a bit slower than the LSF that uses limitedsupport.dll, any chance you could use it ?
No...

Quote:
Originally Posted by pitch.fr View Post
is there any point using this LSFMod call over the original one ? you said you "fixed" some stuff if I got it right
Look at the changelog
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Old 11th November 2008, 20:08   #7  |  Link
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Very interesting. I will have to play with this. Oh, and I can't wait for Didee to spin by. He may offer some great insight.
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Old 11th November 2008, 21:42   #8  |  Link
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Quote:
Originally Posted by LaTo View Post
Look at the changelog
well it's not too clear to me

the only thing I find annoying is getting jaggies with ss1.0, coz >1.0 it's too soft to my taste...but you can't get it all I guess
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Old 11th November 2008, 21:53   #9  |  Link
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You say look at the change-log but that doesn't really help explain some of the new features. Such as, just what is smethod and how/why would we use it? Why did you remove smode=4 and only have 3?
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Old 11th November 2008, 22:18   #10  |  Link
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LaTo, congratulations for the good work.
In the comments write that the "SdmpHi" work in the opposite way than "SdmpLo".
Small number for "SdmpHi" mean big reduction for "big sharpening changes" and usefull numbers are 15~30.
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Old 12th November 2008, 06:19   #11  |  Link
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Quote:
Originally Posted by Nikos View Post
In the comments write that the "SdmpHi" work in the opposite way than "SdmpLo".
Small number for "SdmpHi" mean big reduction for "big sharpening changes" and usefull numbers are 15~30.
Yes...
SdmpLo: the higher, the stronger reduction
SdmpHi: the lower, the stronger reduction

Quote:
Originally Posted by Nightshiver View Post
You say look at the change-log but that doesn't really help explain some of the new features. Such as, just what is smethod and how/why would we use it? Why did you remove smode=4 and only have 3?
new Smode=3 + Smethod=2 is the old Smode=3
new Smode=4 + Smethod=1 is the old Smode=4

new Smode=5 is the same as Smode=4 but with a fix in the formula (no Szrp shift with SdmpLo&SdmpHi!=0)

new Smethod=3 is the same as Smethod=2 but softer, I like the result...
maybe too soft, so Smethod=5 is the same as Smethod=3 but sharper

Smethod=4 is the sharpest...

I will post some screenshot later

Last edited by LaTo; 23rd November 2008 at 19:10.
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Old 12th November 2008, 15:47   #12  |  Link
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So, this is some screenshots about Smethod with LSFmod(Smode=1,strength=300,Smethod=X)... (High strength to see better)

Screenshot 1:

Smethod=1
Smethod=2
Smethod=3
Smethod=4
Smethod=5


Screenshot 2:

Smethod=1
Smethod=2
Smethod=3
Smethod=4
Smethod=5


In order of strength:
- 1 < 3 < 5 < 2 < 4 +

In order of speed:
- 5 < 4 < 3 < 2 < 1 +

In order of quality:
- 4 < 2 < 1 < 3 < 5 +

By default in Limitedsharpenfaster:
With Smode=3, similar as Smethod=2 is used... (It's sharp but produce some ugly artefacts... look at the sky in the screenshot1 & in the back of the chair in the screenshot2)
With Smode=4, similar as Smethod=1 is used... (It's too soft, especially with a default power at 2 and an "auto SdmpLo" changing with strength)

By default in LSFmod:
With Smode=1, Smethod=5 is used... (It need a sharp Smethod because this Smode is linear sharpening)
With Smode=2&3, Smethod=3 is used... (This Smethod is soft but it's compensated by the Spwr parameter of nonlinear sharpening)


Rmq: You can change Skernel to 19, it will be sharper... but there are little artefacts

Last edited by LaTo; 28th November 2008 at 18:35.
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Old 12th November 2008, 19:15   #13  |  Link
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About the difference between Smode4 & Smode5 :






In the original version, when SdmpLo or SdmpHi != 0 the curves don't pass through Szrp...

So, in the corrected version, all curves pass through Szrp...

It's not very important, but I'm a perfectionnist



EDIT: Oups I forgot the 1/Spwr when I made these graph! It isn't a problem, the principle remains the same... I will correct these graph when I have time

EDIT2: Now all is ok, curves are fixed

Last edited by LaTo; 28th November 2008 at 18:34.
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Old 12th November 2008, 20:57   #14  |  Link
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Quote:
Originally Posted by LaTo View Post
in the corrected version, all curves pass through Szrp...
It's not very important, but I'm a perfectionnist
ORLY ?

all this stuff doesn't make much sense to me, I think I'll stick to the original LSF that uses limitedsupport.dll
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Old 12th November 2008, 22:24   #15  |  Link
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LaTo
1. There is something wrong in your graphs. The bellow graph is from Didee:



Light blue shows "Szp=16, Spower=4, SdampLo=0.01, SdampHi=255".
Dark blue shows "Szp=16, Spower=2, SdampLo=3, SdampHi=255"
Dark green shows "Szp=16, Spower=4, SdampLo=4, SdampHi=24"


2. From the original SeeSaw function:
Sstr = default( Sstr, 1.5 )
Szp = default( Szp, 16 ) # or 16+2
Szp = Szp / pow(Sstr, 1.0/4.0) / pow( (ssx+ssy)/2.0, 1.0/2.0 )

SdampLo = default( SdampLo, 5) # Spower+1
SdampLo = SdampLo / pow(Sstr, 1.0/4.0) / pow( (ssx+ssy)/2.0, 1.0/2.0 )


from your LSFmod:
strength = default( strength, Select(num, 100 , 100 ) )
Szrp = default( Szrp, Select(num, 16 , 16 ) )
strength = float(strength)/100.0
Szrp = Szrp == 0 ? 1 : Szrp

SdmpLo = default( SdmpLo, Select(num, strength/25 , 4 ) )



If you want explain the differents.
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Last edited by Nikos; 13th November 2008 at 00:44.
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Old 13th November 2008, 06:11   #16  |  Link
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Quote:
Originally Posted by Nikos View Post
LaTo
1. There is something wrong in your graphs. The bellow graph is from Didee:
I know... Look a little:
Quote:
Originally Posted by LaTo View Post
EDIT: Oups I forgot the 1/Spwr when I made these graph! It isn't a problem, the principle remains the same... I will correct these graph when I have time
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Old 13th November 2008, 17:19   #17  |  Link
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LaTo one more comment.
I prefer separate overshoot value for edges and non edges instead of Lfactor,
but this is just my opinion, your mod is nice.
Thanks to Didee for the wonderful ideas.

Edit
Another comment.
Code:
### SOFT

sharpdiff = mt_makediff(tmp,last,U=1,V=1)
sharpdiff = mt_lutxy(sharpdiff,sharpdiff.removegrain(19,-1),
 \                   "x 128 - abs y 128 - abs > y "+string(soft)+" * x "+string(100-soft)+" * + 100 / x ?",U=1,V=1)

soft==0 ? last : mt_makediff(tmp,sharpdiff,U=1,V=1)
  
(ss_x > 1.0 || ss_y > 1.0) || (dest_x != ox || dest_y != oy) ? spline36resize(dest_x,dest_y) : last


### SOOTHE

diff  = mt_makediff(clp,last,U=1,V=1)
diff2 = diff.temporalsoften(1,255,0,32,2)
diff3 = mt_lutxy(diff,diff2,"x 128 - y 128 - * 0 < x 128 - 100 / "+string(keep)+
\                           " * 128 + x 128 - abs y 128 - abs > x "+string(keep)+" * y 100 "+string(keep)+" - * + 100 / x ? ?",U=1,V=1)

soothe ? mt_makediff(clp,diff3,U=2,V=2) : last.mergechroma(clp)

return edgemode!=-1 ? last : edge.spline36resize(dest_x,dest_y).greyscale()
}
If (dest_x != ox || dest_y != oy) then last and clp have different dimensions.
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Last edited by Nikos; 13th November 2008 at 18:31.
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Old 13th November 2008, 20:12   #18  |  Link
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Quote:
Originally Posted by Nikos View Post
If (dest_x != ox || dest_y != oy) then last and clp have different dimensions.
Thanks for the report, I will fix this (and graph) tomorrow
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Old 14th November 2008, 17:30   #19  |  Link
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Update v1.1

v1.1:
fixed a bug with dest_x!=ox or dest_y!=oy
replaced Lfactor by over/undershoot2

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Old 15th November 2008, 09:42   #20  |  Link
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Quote:
Originally Posted by Jeremy Duncan View Post
The new lsfmod is pretty much identical in detail compared to my lsf, when both plugins use dfault settings.
Yes on your "artificial" test, but on real content it's not the same deal, I haven't time to post screenshot... Test by yourself
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