reader, it-consultant, love funny things, passionate
Munich, Bavaria, Germany
Joined July 2008
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- Following1.9K
- Followers447
- Likes59K
@Techmoan experiment?
I think I've figured out why the Star Trek DVDs look so bad.
While testing LaserDisc files, which have decent color out of the box, I tried separating the YUV channels using ffmpeg. I was using a different decoder for the luma than for the chroma and wanted to see if I could save some disk space. But when I recombined them, the LaserDiscs started to resemble the DVD's color. Baffled, I began to investigate what happened during the ffmpeg conversion.
At first, I tried adjusting the offset for the U/V channels. It helped, but the colors still felt off. Then I remembered that limited luma ranges from 16-235, while chroma ranges from 16-240.
After creating a basic script and loading a few very different-looking DVD episodes from both Voyager and Deep Space Nine, I expanded the chroma's levels range from 16-235 to 16-240. It was like putting on glasses for the first time—the colors snapped into place, and the DVDs resembled very closely to the LaserDisc files and as I remember them from broadcast TV.
So it seems the Star Trek DVDs were somehow incorrectly scaled, with the chroma range set to 16-235 instead of 16-240. 🤷♂️ Not sure how or why this happened.
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cleansing nach @NukaRhyPiratin
Wie Viennetta Eis hergestellt wird. Und ich will ja nicht nerven, aber:
Das ist alles #Verfahrenstechnik!
Und damit Guten Morgen!
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Hang on @neilhimself is that a lost chapter of American Gods?
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@PlayChessUp hello
My app is not working, see screenshot
Yes, I logged off and on
I restarted the app
I restarted the phone
I un- and reinstalled the app
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@FlugschuleE sie sind überall – at Markt Indersdorf, Deutschland
Big Vegetable are suppressing the cure for tetanus, apparently.
#FacebookScience #MedicineFails #Woo
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@HannahReloaded I was innocently pre-ordering Dune part 2 and the big A flashed this into my face.
We are still afraid that the quality will be fucked up? But can’t be helped.
Release Date Germany: 26th April
German word of the day: verschlimmbessern, making worse by improving – at Markt Indersdorf, Deutschland
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@_ByteMyBits Raspberry Pi 5 is out. I wonder, what it can do with @plex – at Markt Indersdorf, Deutschland
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Yesterday DHL announced a package being on my way. Sender didn’t ring a bell.
Package just arrived. No idea from the outside.
Reveals demon
All hail #baphy
@EmmaTheGoblin – at Munich, Bavaria
ALT Standard sized demon next to standard sized frog
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@Schwarzenegger du warst gestern da?
Komm doch nächste Woche Freitag ins Schützenlisl Zelt
Ich zahl a Maß – at Markt Indersdorf, Deutschland
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@Vlesk youtu.be/4BmM9sbsOTw?si=d_ff… :-) wusste ich noch nicht über Among Us aber sehr interessant
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Hear me out @FilmUpdates
Margot Robbie as Misato Katsuragi in a 6 part film series of Neon Genesis Evangeliob directed by Guillermo del Toro
Margot Robbie has worked with Martin Scorsese, Quentin Tarantino, Damien Chazelle, Cathy Yan, Craig Gillespie, Wes Anderson and Greta Gerwig.
Who do you want her to work with next?
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