HDTV MythTV and HD Tivo series 3 compared.
 

Wes Newell ) wrote in alt.video.ptv.tivo:
On Tue, 14 Feb 2006 22:35:17 -0500, Jeff Rife wrote:

If that's all you can see 1" from the screen that that says your display
can resolve a whopping 400x300. Even I know your monitor isn't that bad.

Well, I can see 3 on this monitor,

Then, that's all your monitor can resolve.

But it doesn't matter what I see as
this chart is virtually worthless for the human eye.

It's the standard that is used for determining resolution, and other
people have no problem with it.

There's not a person
living that can distinguish black lines spaced as close together as .21mm.

Funny, but on my 1600x1200 LCD monitor it's nice and clear down to the
"10", which gives me 1000 line pairs, or a total resolvable amount of
1333x1000. And, I paid less than $500 for that monitor, so I knew I
wasn't getting full 1600x1200, but it's still a lot better than what
yours can display.

That equates to about .0008", or 8 ten thousands of an inch for those that
have trouble with decimal places.

You mean, like you? You added an extra zero...the correct number is
0.0082, or about eight *one thousands* of an inch.

Or about 110dpi to put it another way.

Actually, it's almost exactly 120dpi. Can't you find the 1/x button on
your calculator?

Now what I can do to verify the resolution is use the mouse to output
the pixel location of the screen and make sure it goes from 0 to 1599.

All that says is that the video card is outputting 1600 pixels per line.
You can't distinguish all those pixels individually.

So, like I said, there are no monitors under $500 that are capable of
fully resolving 1600x1200.

--
Jeff Rife |
| http://www.nabs.net/Cartoons/Dilbert...dCoWorkers.gif

HDTV MythTV and HD Tivo series 3 compared.
 

Randy S. ) wrote in alt.video.ptv.tivo:
Bull****. The human eye can easily see distinguish differences well
above 110 DPI. In fact nearly everyone can distinguish individual
pixels at 300 dpi at reading distances, which is why printer resolutions
for higher quality prints were increased from 300 dpi to 600 or even
1200 dpi several years ago.

Correct, and when I print out that same resolution chart on my 1200dpi
printer, I can clearly distinguish all the way down to 1600 lines, and
almost down to 2000. The extra resolution is because of the "Resolution
Enhancement Technology" that does anti-aliasing.

--
Jeff Rife |
| http://www.nabs.net/Cartoons/Dilbert/SalesToFriends.gif

HDTV MythTV and HD Tivo series 3 compared.
 

Randy S. ) wrote in alt.video.ptv.tivo:
OMFG you are so full of crap. I'm looking at a 17" monitor right now
running at 1280x1024, and I can *easily* distinguish individual pixels
from about 1' or closer. Beyond 1' I cannot distinguish them.

And, unlike viewing distance, resolution chart analysis allows you to
"cheat" and get as close as you want. This is to take your eyes out of
the equation.

When looking at the printout from 12", I can't really tell for sure if
the 1200 lines are resolving correctly (my eyes aren't perfect). But,
it's easy to see that 1600 *is* resolving at 6" from the paper, and 1200
has black/white gaps that look like a picket fence.

Just for grins, I printed the chart at 50% on the 1200dpi printer, and
it's absolutely clear down to the 10 mark, and just the slightest bit
of noise at 12. That gives my printer between 2000 and 2400dpi of
effective resolution. Not bad for what is advertised as a 1200dpi printer.

I'll have to do the same thing on the really high-res printers we have
at work...they claim 2400dpi actual before the "enhancement" technologies.

--
Jeff Rife | "Eternity with nerds. It's the Pasadena Star
| Trek convention all over again."
|
| -- Nichelle Nichols, "Futurama"

HDTV MythTV and HD Tivo series 3 compared.
 

On Wed, 15 Feb 2006 13:26:24 -0500, Jeff Rife wrote:

Wes Newell ) wrote in alt.video.ptv.tivo:
On Tue, 14 Feb 2006 22:35:17 -0500, Jeff Rife wrote:

If that's all you can see 1" from the screen that that says your display
can resolve a whopping 400x300. Even I know your monitor isn't that bad.

Well, I can see 3 on this monitor,

Then, that's all your monitor can resolve.

My wife can seen 5, so that just goes to prove how worthlerss checking it
this way is.. All of it is BS.

Now what I can do to verify the resolution is use the mouse to output
the pixel location of the screen and make sure it goes from 0 to 1599.

All that says is that the video card is outputting 1600 pixels per line.
You can't distinguish all those pixels individually.

Now you got it right. Even though they are there, I cna't distinguish
them.

So, like I said, there are no monitors under $500 that are capable of
fully resolving 1600x1200.

And you know this has already been proved as BS. Like the person said,
math doesn't lie. Need a .225mm horizontal dot pitch for 1600 pixels
across a 14.5" 19" monitor. There's lots of 19" monitors with .22mm or
less dot pitch under $500. Most under $200.

--
Want the ultimate in free OTA SD/HDTV Recorder? http://mythtv.org
http://mysettopbox.tv/knoppmyth.html Usenet alt.video.ptv.mythtv
My server http://wesnewell.no-ip.com/cpu.php

HDTV MythTV and HD Tivo series 3 compared.
 

Jeff Rife wrote:
Randy S. ) wrote in alt.video.ptv.tivo:

OMFG you are so full of crap. I'm looking at a 17" monitor right now
running at 1280x1024, and I can *easily* distinguish individual pixels
from about 1' or closer. Beyond 1' I cannot distinguish them.


And, unlike viewing distance, resolution chart analysis allows you to
"cheat" and get as close as you want. This is to take your eyes out of
the equation.

When looking at the printout from 12", I can't really tell for sure if
the 1200 lines are resolving correctly (my eyes aren't perfect). But,
it's easy to see that 1600 *is* resolving at 6" from the paper, and 1200
has black/white gaps that look like a picket fence.

Just for grins, I printed the chart at 50% on the 1200dpi printer, and
it's absolutely clear down to the 10 mark, and just the slightest bit
of noise at 12. That gives my printer between 2000 and 2400dpi of
effective resolution. Not bad for what is advertised as a 1200dpi printer.

I'll have to do the same thing on the really high-res printers we have
at work...they claim 2400dpi actual before the "enhancement" technologies.


Yep. The Moire effect helps pick out the hardware limitation doesn't
it? Kind of like inteference patterns with lasers? I've used laser
interferometry (a very long time ago) to measure very exact distances
that were *much* smaller than could be measured by simple mechanical
methods.

Randy S.

HDTV MythTV and HD Tivo series 3 compared.
 

Wes Newell ) wrote in alt.video.ptv.tivo:
Well, I can see 3 on this monitor,

Then, that's all your monitor can resolve.

My wife can seen 5, so that just goes to prove how worthlerss checking it
this way is..

In that case, you're blind as a bat and shouldn't be allowed to go
anywhere without a guide dog.

So, like I said, there are no monitors under $500 that are capable of
fully resolving 1600x1200.

And you know this has already been proved as BS. Like the person said,
math doesn't lie. Need a .225mm horizontal dot pitch for 1600 pixels
across a 14.5" 19" monitor.

That's still theoretical maximum, not actual resolvable pixels.

Geez, why the hell am a arguing with a guy with no brains and no eyes,
anyway?

--
Jeff Rife |
| http://www.nabs.net/Cartoons/OverThe...ortOfKings.gif