[mythtv-users] Objective IVTV quality measurement instructions
papenfuss at juneau.me.vt.edu
Sat Aug 14 10:55:42 EDT 2004
> *Ghod*, I love grad students.
... that would rather work on fun stuff like mythtv than their
research, no less... :)
> We just wouldn't get as much done in the US with grad students.
> I'll be trying this out in the next day or three, Cory; thanks. Does
> the image have any other useful test patterns on it? I align a fair
> number of TV's and projectors in a year...
It's just a work in progress. I collected a few more test images. I
don't really believe the colorbars' accuracy (not sure if you can even
*generate* a true colorbar pattern with COTS hardware like a DVD player).
There's a B&W gamma pattern, and a simple aspect-ratio geometry pattern. I was
mainly after the resolution test pattern.
Shortly after I announced this a few months back, someone asked for a
PAL version. I think I tried to generate it and put it up there. All of this
comes with a HUGE YMMV disclaimer... :)
Actually, for my own resolution tests, I hacked up a modeline and had
the computer generate the test signal at 1800x480. A DVD player at 720x480 is
not too bad, though.
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