Is there such a thing as an app that will minimize loss of image clarity when upscaling/upconverting to a larger size? For example upconverting 16:9 720x480 to HD resolution size?
Thanks
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How are you upscaling now?
Anything wrong with using nnedi3_rpow2 followed by some sharpening? -
Convert it to 2K, adjust contrast/brightness, downsize to 1080. If that's not good enough, no there's nothing.
In Vegas, you would set the project to 2K, then render out to 1080. Then change the project to whatever you need. Vegas will automatically scale the preview to project settings -
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Last edited by jagabo; 22nd Jan 2014 at 23:44.
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Sure. I was just surprised you had never heard of it as it's well-known as the best AviSynth upsizer. Or try Video Enhancer by Infognition. Except it's not all they claim it to be:
http://www.infognition.com/VideoEnhancer/ -
On the upscaled image, I see smoothing. In this case, the upscale became better than the original. But the color palette is limited. What about a 480 still from a DVD?
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When I set it to 300ppi lot of artifacts appear. Besides, this is the only thread worth posting in.
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I found this script on the 'net while I was nosing about in various places. I've never tried to do this before, but it gave surprisingly
good results. I had a demo 1080p video on my PC (it's a bunch of fish swimming around). I first encoded to DVD using HCenc,
then recreated 1080 from the dvd using the script (it ran so slow on my PC, I only encoded the first 200 frames)
Here it is, if anybody's curious. I was unable to find one of the functions, Framecache().
I just commented it out. It worked, but was extremely slow.
LoadPlugin("F:\Documents and Settings\Dave Xnet\My Documents\Downloads\dgmpgdec158\DGDecode.dll")
DGDecode_mpeg2source("F:\Documents and Settings\Dave Xnet\Desktop\movies _temp\samsung.d2v", info=3)
degrainmv(200)
nnedi3_rpow2(rfactor=2,cshift="spline64resize",psc rn=false)
spline64resize(1440,1080,0,5,0,0)
ColorMatrix(mode="Rec.601->Rec.709")
noise()
function noise(clip clp)
{
m1 = mt_luts(clp,clp,"avg",mt_square(1),"y x 0.98 * < 0 y x 1.02 * > 0 255 ? ?",u=1,v=1)
cgrain = blankclip(clp,color_yuv=$808080).addgrainC(0,10,0, 0).temporalsoften(1,0,255,255,2)
grain = clp.grainfactory3(g1str=20,g2str=30,g3str=50,temp_ avg=100).mt_makediff(cgrain,y=2,u=3,v=3)
AGmask = m1.mt_inpand().removegrain(19,-1).mt_lutxy(clp,"x y 200 + 455 / 0.5 ^ *",u=1,v=1)
mt_merge(clp,grain,AGmask,luma=true)
}
function degrainmv(clip clp,int "thSAD"){
thSAD = default(thSAD,150)
clp
framecache(7)
sclip = msuper()
vf1 = manalyse(sclip,isb=false,delta=1,overlap=4,blksize =8,search=5,pelsearch=2,truemotion=true,sadx264=0)
vb1 = manalyse(sclip,isb=true,delta=1,overlap=4,blksize= 8,search=5,pelsearch=2,truemotion=true,sadx264=0)
vf2 = manalyse(sclip,isb=false,delta=2,overlap=4,blksize =8,search=5,pelsearch=2,truemotion=true,sadx264=0)
vb2 = manalyse(sclip,isb=true,delta=2,overlap=4,blksize= 8,search=5,pelsearch=2,truemotion=true,sadx264=0)
vf3 = manalyse(sclip,isb=false,delta=3,overlap=4,blksize =8,search=5,pelsearch=2,truemotion=true,sadx264=0)
vb3 = manalyse(sclip,isb=true,delta=3,overlap=4,blksize= 8,search=5,pelsearch=2,truemotion=true,sadx264=0)
mdegrain3(clp,sclip,vb1,vf1,vb2,vf2,vb3,vf3,thSAD= thSAD)
mt_merge(clp,last,clp.blur(1.5).mt_lut("x 80 > 255 x 3 * ?"),luma=true)
} -
Degrain followed by added noise? I don't get it. Added noise alone sure, but why denoise then.
And can't that Spline64Resize call go directly into NNEDI for the proper centering at the same time as the final resize? -
I have not analyzed the script yet, but I believe it is supposed to compensate for too much smoothness being introduced.
Here's some of the output, enlarged from 720x480 DVD, and the x264 settings.
x264.exe" --preset veryfast --crf 18 --level 4 --keyint 100 --ref 3 --bframes 2 --vbv-bufsize 25000 --vbv-maxrate 20000 --sar 4:3
Also, the source m2v.Last edited by davexnet; 23rd Jan 2014 at 17:29.
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