10-10-2017, 07:39 PM
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Site Staff | Video
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Join Date: Dec 2002
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@sanlyn: The saturation is a bit aggressive, but not illegal. I don't have a major problem with it. However I do like more realism. If I want super colors, that's what the color setting on the TV is for.
That ringing however ... yeesh. No, no, no.
Don't sharpen VHS, except in some situations.
It's hard to argue the cast correction. Nice work there, themaster1.
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10-11-2017, 12:01 AM
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Sanlyn the corrected color cast/ white balance is what caught my eye, since that's what I failed miserably at in my own attempt. My eye isn't trained enough yet to notice negative effects of oversharpening.
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10-11-2017, 09:15 PM
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Sanlyn could you share how you view the three separate RGB channels like this? I'm going to play around with some hardware settings.
Quote:
Originally Posted by sanlyn
The crippled and distorted blue channel is still there, and looks worse here. Notice how Blue has a solarized effect ("solar flare" on contrasting edges) and posterization:
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10-11-2017, 09:52 PM
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Location: N. Carolina and NY, USA
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Quote:
Originally Posted by ragu0012
Sanlyn could you share how you view the three separate RGB channels like this? I'm going to play around with some hardware settings.
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Code:
source = Avisource("path:\test indoor wrestling.avi")
source=source.AssumeTFF().ConvertToYV12(interlaced=true)\
.QTGMC(preset="Super fast").converttoRGB(interlaced=false)
BL = source.ShowBlue().Subtitle("BLUE",size=42,text_color=color_aqua).converttoYV12(interlaced=false)
RE = source.ShowRed().Subtitle("RED",size=42,text_color=color_red).converttoYV12(interlaced=false)
GR = source.ShowGreen().Subtitle("GREEN",size=42,text_color=color_palegreen).converttoYV12(interlaced=false)
Source=source.Subtitle("Source",size=42,text_color=$EBEBEB).ConvertToYV12(interlaced=false)
clip1 = stackhorizontal(source,RE)
clip2 = stackhorizontal(GR,BL)
clip3 = stackvertical(clip1, Clip2)
Clip3=Clip3.Trim(220,320) #<- optional
clip3=Clip3.AssumeFPS(5005/1001) #<- optional
return Clip3
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The following users thank sanlyn for this useful post:
ragu0012 (10-12-2017)
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10-13-2017, 01:52 AM
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All right, am I making any progress? Where am I still falling short?
This time I did not push saturation at all and did not sharpen. Worked on fixing chroma bleeds and shifts and halos. Tried to adjust the color cast without overdoing it or turning it completely green.
new edited frame.png
On example 2, i pushed the color cast slightly less. Which is more pleasing?
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And just for reference, here is a frame with no chroma fixes or color corrections, just fast QTGMC to deinterlace to give a clean frame.
new edited frame2.png
(and PS Sanlyn thanks for the R-G-B separate script. I am learning lots by experimenting on that.)
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