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Major17Wood 05-19-2022 02:51 PM

QTGMC output is blurred?
 
1 Attachment(s)
I'm noticing that deinterlacing is causing loss of sharpness in my captures.

Left side of screenshot is software yadif deinterlace in VLC, right is QTGMC deinterlaced

The jaggies on the date and time numbers have been smoothed. I do not like this. How can I stop QTGMC from smoothing the image?

My only QTGMC setting is
Code:

QTGMC(Preset="Slow")
Is there a way for me to upload a better quality screenshot? The image uploaded here is being super compressed for some reason and kinda making it hard to see what I'm talking about. If you look at the "2's" you may be able to see it. On the left, the "2" has a pixelly staircase look, on the right its been totally smoothed flat into a diagonal line.

lordsmurf 05-19-2022 04:13 PM

Do not use slow. Use faster.
Slow has excess filtering that blurs. That's the difference.

Major17Wood 05-19-2022 06:49 PM

2 Attachment(s)
It's still smoothing it out it seems.

Heres the script I'm using:

AviSource("C:\Users\Dave\Desktop\test.avi")
AssumeTFF()
QTGMC(Preset="faster")
Crop(4, 0, -4, -8)
LanczosResize(1440, 1080)

Hushpower 05-20-2022 03:26 AM

Quote:

The image uploaded here is being super compressed for some reason and kinda making it hard to see what I'm talking about.
We're trying to convince the Lordsmurf to increase the allowable postable image size! :D

lollo2 05-20-2022 04:04 AM

QTGMC reduces jagged shapes created by deinterlacing procedures. This is one of its major benefits, a side effect is the one you experimented on a "real" jagged shape.

QTGMC can rarely be used with its defaults parameters, whatever preset you choose (BTW "fast" in only recommended for speed reason, not for optimal results).

Try to use QTGMC's lossless and sourcematch features:

Code:

QTGMC(Lossless=2, SourceMatch=3, ...)
For a "natural" look I sometimes use the following set, but you have to experiment with your own material:

Code:

QTGMC(preset="slow", matchpreset="slow", matchpreset2="slow", sourcematch=3, tr1=2, tr2=1, NoiseTR=2, sharpness=0.1)

lordsmurf 05-20-2022 04:46 AM

Quote:

Originally Posted by Hushpower (Post 84868)
We're trying to convince the Lordsmurf to increase the allowable postable image size! :D

No convincing necessary. It's part of a larger forum upgrade. That monster project is just taking time. Must hire some devs for key pieces, so that's the bottleneck. And people think I'm slow sometimes!


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