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Old 2nd December 2007, 02:52   #1  |  Link
*.mp4 guy
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Super Slow Sharpen

Code:

#version 0.1, optimizations by Didée


function halomaskM(clip c, int "hthr", int "hbias", int "agmrad"){

	hthr = default(hthr, 256)
	hbias = default(hbias, -128)
	agmrad = default(agmrad, 1)

	s = c
	Mblur = (agmrad==1) ? s.removegrain(4,-1) : s.Quantile(radius_y=agmrad,radius_u=-1,radius_v=-1)
	gblur = (agmrad<=5) ? s.binomialblur(vary=agmrad, varc=0) : s.gaussianblur(vary=agmrad, varc=0)
	maskM = mt_lutxy(Mblur, Gblur, "y x - abs "+string(hthr)+" * "+string(hbias)+" +", U=1, V=1)
	
return(maskM)}

function halomaskMR(clip c, int "hthr", int "hbias"){

	hthr = default(hthr, 256)
	hbias = default(hbias, -128)
	
	s = c
	Ablur = s.removegrain(4)
	gblur = s.gaussianblur(vary=1, varc=0)
	mask3 = mt_lutxy(Ablur, Gblur, "y x - abs "+string(hthr)+" * "+string(hbias)+" +", U=1, V=1)

return(mask3)}


function SSW(clip c){
c#.unsharp()
w = width
h = height

spline36resize(w*3, h*3)

awarpsharp(cm=0, depth=3, blurlevel=1, thresh=0.99)
awarpsharp(cm=0, depth=3, blurlevel=1, thresh=0.99)
awarpsharp(cm=0, depth=3, blurlevel=1, thresh=0.99)
awarpsharp(cm=0, depth=3, blurlevel=1, thresh=0.99)
awarpsharp(cm=0, depth=3, blurlevel=1, thresh=0.99)

awarpsharp(cm=0, depth=3, blurlevel=1, thresh=0.99)
awarpsharp(cm=0, depth=3, blurlevel=1, thresh=0.99)
awarpsharp(cm=0, depth=3, blurlevel=1, thresh=0.99)
awarpsharp(cm=0, depth=3, blurlevel=1, thresh=0.99)
awarpsharp(cm=0, depth=3, blurlevel=1, thresh=0.99)

spline36resize(w, h)}

function SSSharp(clip c, float "rad", bool "ssw", float "strength", int "iter", bool "ss", int "denoise"){

rad = default(rad, 0.25)
ssw = default(ssw, true)
strength = default(strength, 4)
iter = default(iter, 1)
ss = default(ss, true)
denoise = default(denoise, iter)

c
w = width(c)
h = height(c)


sswc = ssw ? c.ssw() : c
(iter >= 1) ? MT_Merge(unsharp(vary=rad, varc=1, strength=strength), sswc, spline36resize((ss ? w*4 : w), (ss ? h*4 : h)).halomaskM(hbias=-128, hthr=256, agmrad=(ss ? round(rad*4) : round(rad))).spline36resize(w, h)) : last
(denoise >=1) ? degrainmedian(mode=3).dctfun4b(2,2) : last
(iter >= 2) ? MT_Merge(unsharp(vary=rad, varc=1, strength=strength), sswc, spline36resize((ss ? w*4 : w), (ss ? h*4 : h)).halomaskM(hbias=-128, hthr=256, agmrad=(ss ? round(rad*4)  : round(rad))).spline36resize(w, h)) : last
(denoise >=2) ? degrainmedian(mode=3).dctfun4b(2,2) : last
(iter >= 3) ? MT_Merge(unsharp(vary=rad, varc=1, strength=strength), sswc, spline36resize((ss ? w*4 : w), (ss ? h*4 : h)).halomaskM(hbias=-128, hthr=256, agmrad=(ss ? round(rad*4)  : round(rad))).spline36resize(w, h)) : last
(denoise >=3) ? degrainmedian(mode=3).dctfun4b(2,2) : last
(iter >= 4) ? MT_Merge(unsharp(vary=rad, varc=1, strength=strength), sswc, spline36resize((ss ? w*4 : w), (ss ? h*4 : h)).halomaskM(hbias=-128, hthr=256, agmrad=(ss ? round(rad*4)  : round(rad))).spline36resize(w, h)) : last
(denoise >=4) ? degrainmedian(mode=3).dctfun4b(2,2) : last
return(last)
}
Rad must be a multiple of 0.25 when ss=true, or 1 when ss=false. usable range is 0.25 to ~8, using a rad that is not close to the radius of the bluring present in your source will give suboptimal results. Higher iter, with lower strength will give more precise masking (less halos for same sharpening) but will be very slow.


example usage:
Code:
source = MPEG2Source("J:\GITS_D1\VIDEO_TS\GITS.d2v", cpu=0, info=3).colormatrix(hints=true, interlaced=true).crop(8,8,-8,-8).assumetff()
Deint = Source.securedeint().selecteven
IVTC = source.TFM(mode=7, clip2=deint, pp=7, slow=2, d2v="J:\GITS_D1\VIDEO_TS\GITS.d2v")
IVTC

SSSharp(ssw=true, iter=1, strength=1, rad=1)
SSSharp(ssw=true, iter=2, strength=3)

deen("m2d", 20, 12, 0)
example pic
no processing

Last edited by *.mp4 guy; 3rd December 2007 at 19:52.
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Old 2nd December 2007, 07:44   #2  |  Link
TheRyuu
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I can't find 2 plugins needed for the script: unsharp, and gaussianblur.

And I always though I had all the filters I'd ever need :P
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Old 2nd December 2007, 09:04   #3  |  Link
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They are both part of the variableblur plugin by tsp.
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Old 2nd December 2007, 12:28   #4  |  Link
Didée
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There is a possible speed improvement, target is MedianBlur. MedianBlur alas is rather slow compared to the available faster alternatives.

MedianBlur(1) can be replaced by RemoveGrain(4). That's 2.5 to 3 times faster.

With radii > 1, MedianBlur(r) can be replaced by Quantile(), which is part of kassandro's new RemoveGrainHD filter package.
The parameters are a bit unintuitive at first glance, however Quantile runs at least 2.5 times as fast as MedianBlur, if not more.

Not sure how much impact this has in the context of the whole script (it seems very very slow just by looking at the script's code), but at least this particular filter is an obvious target for optimization.
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Old 2nd December 2007, 22:01   #5  |  Link
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also using binomialBlur instead of gaussianblur might be worth a try.
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Old 3rd December 2007, 04:47   #6  |  Link
*.mp4 guy
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@ tsp

How big is the difference between a vary=1 guassianblur and a var=1 binomialblur?

@Didée

Do you know if removegrain(4) has higher or lower ram usage then medianblur(1)?

[edit]
I tried to implement removegrain instead of medianblur for aplicable radii, but avisynth is barfing on all of the if : then's, I might just split out a separate function for it.

Last edited by *.mp4 guy; 3rd December 2007 at 05:26.
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Old 3rd December 2007, 12:17   #7  |  Link
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Quote:
Originally Posted by *.mp4 guy View Post
How big is the difference between a vary=1 guassianblur and a var=1 binomialblur?
Big enough to make a noticeable difference.

Quote:
Do you know if removegrain(4) has higher or lower ram usage then medianblur(1)?
From testing with your function: a bit lower, it seems.

Quote:
I tried to implement removegrain instead of medianblur for aplicable radii, but avisynth is barfing on all of the if : then's,
Hmm, I cannot reproduce that. To make use of the alternative filters, I changed two lines in HaloMask():

Code:
	s = c
      # Ablur = s.medianblur(agmrad)
	Ablur = (agmrad==1) ? s.removegrain(4,-1) : s.Quantile(radius_y=agmrad,radius_u=-1,radius_v=-1)
      # gblur = s.gaussianblur(vary=agmrad, varc=0)
	gblur = (agmrad<=5) ? s.binomialblur(vary=agmrad, varc=0) : s.gaussianblur(vary=agmrad, varc=0)
	mask3 = mt_lutxy(Ablur, Gblur, "y x - abs "+string(hthr)+" * "+string(hbias)+" +", U=1, V=1)
- That's all. No crashes or anything, even with insane settings.

Measures with SetMemoryMax(300) on a 2.8GHz Core2, 720x576 PAL smaple:
(Note that it's frames per *minute* ...)

SSSharp()
original: 23fpm
modded: 53 fpm

SSSharp(rad=3,ssw=true,iter=4)
original: 3.4 fpm
modded: 6.5 fpm


Those were quick'n dirty tests - short sample, only one repetition, no reboot inbetween, etc. Short of time, sorry. Still, it seems that the speed is roughly doubled by those changes, perhaps even more.
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Old 3rd December 2007, 19:01   #8  |  Link
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Thanks Didée, the way I was trying to implement it was pretty braindead... which is, I'm sure why I had problems.
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Old 4th December 2007, 22:37   #9  |  Link
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Wow! After seeing the long aWarpSharp chain, I was a bit shocked... But looking at your example n considering how blurry the source is, the result surprises me... Looks almost like some sort of deconvolution! How does it look in motion? [Is the effect "stable"?] Can you give some more samples? [Different content, less blurry -> less filtering, a source with higher resolution...] :]


Thx n' Bye
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Last edited by Soulhunter; 4th December 2007 at 22:46.
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Old 4th December 2007, 22:53   #10  |  Link
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Quote:
Originally Posted by Soulhunter View Post
Wow! After seeing the long aWarpSharp chain, I was a bit shocked... But looking at your example n considering how blurry the source is, the result surprises me... Looks almost like some sort of deconvolution! How does it look in motion? [Is the effect "stable"?] Can you give some more samples? [Different content, less blurry -> less filtering, a source with higher resolution...]


Thx n' Bye
The effect is completely stable (aslong as super sampling is used during mask generation, as it was in the example). To answer your second question, yes I can provide some more samples using a higher quality source, but the effect will be more subtle because there isn't as much room for improvement with good sources. I should also mention that this sharpening method sharpens halos just as much as it sharpens everything else, so given a source with haloig, sharpening it with SSSharp will make it worse, just to a much lesser extent then a regular unsharp mask.

I'm currently running a very ram hungry script, it should be done soon, and when it is I'll edit this post with a few more examples.

[edit]
script:
Code:
MPEG2Source("J:\THANKYOUFORSMOKING_WS\VIDEO_TS\TYFS.d2v", cpu=0, info=3).colormatrix(hints=true).crop(0, 60, 0, -60)

SSSharp(denoise=1, iter=2, ssw=true)
SSSharp, no processing
SSSharp, no processing
SSSharp, no processing

Keep in mind that these examples are actualy very oversharp, and wouldn't look good after being scaled up to fullscreen, realistically this source doesn't need such strong sharpening.

Last edited by *.mp4 guy; 5th December 2007 at 00:00.
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Old 6th December 2007, 16:27   #11  |  Link
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I vote for calling it GlacialSharpen, though thanks to Didée it's no longer EpochSharpen. (EpicSharpen?) Works great for scans, though waiting 10 seconds every attempt while finding the right settings can be rather frustrating.
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Old 9th December 2007, 06:12   #12  |  Link
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Very Very Very Slow!
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Old 14th December 2007, 05:09   #13  |  Link
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I get an error message when I tried the script - no function named "unsharp". Where can I download the unsharp filter.

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Old 14th December 2007, 05:22   #14  |  Link
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Sorry guys. Forget my previous post. I didn't read the posts correctly from the beginning.

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Old 10th January 2008, 11:42   #15  |  Link
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May you please list down all the plugin's needed to run this Super Slow Sharpen script please, thank you.
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Old 10th January 2008, 17:54   #16  |  Link
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removegrain, quantile, variableblur, masktools 2, awarpsharp, degrainmedian and dctfun4b.
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Old 11th January 2008, 01:33   #17  |  Link
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Can you give a sample full working script with all the loaded plugins + syntax & everything else please, thank you.
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Old 11th January 2008, 23:15   #18  |  Link
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Just put the plugins in the autoload directory. The only thing you should bother changing is the strength parameter, 4, the default value, is very strong.
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Old 12th January 2008, 02:15   #19  |  Link
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Quote:
Originally Posted by *.mp4 guy View Post
Just put the plugins in the autoload directory. The only thing you should bother changing is the strength parameter, 4, the default value, is very strong.
I do not compute, seriously I dont understand, can you give a step by step guide please, thank you. I hope it's not too troublesome. Also I get this error -> unsharp unknown command
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Old 12th January 2008, 02:31   #20  |  Link
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Quote:
Originally Posted by foxyshadis View Post
(EpicSharpen?)
<3
+1


also
this looks really cool
I've got some lame scans and such laying around that would benefit from this
'course that means I'd have to set avisynth again
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