TV question

#1 Wed, 7 Jul 2004 - 12:22

TV signals are at a fixed size - why is it that a TVs can be big and not get fuzzy - but if you blow up captured video on a Computer it gets fuzzy?

Is it because the TV screen is analogue - whereas the computer expands the image pixels digitally?

[edit] - damn - this was meant to go in the lounge...
[edit: done. --tooki]

#2 Thu, 8 Jul 2004 - 06:43

Quote:

Originally posted by Diggory Laycock:
TV signals are at a fixed size - why is it that a TVs can be big and not get fuzzy - but if you blow up captured video on a Computer it gets fuzzy?

Is it because the TV screen is analogue - whereas the computer expands the image pixels digitally?

[edit] - damn - this was meant to go in the lounge...

It's because the resolution of a TV screen is always the same, no matter how big it is! (a small TV is usually a lot sharper than a big one because of the same amount of pixels in a smaller area)

#3 Thu, 8 Jul 2004 - 07:21

But I have a relatively large TV (Sony Wega WideScreen 32") - and it looks pretty sharp - how can that be when it's such poor resolution?

If you use a large monitor and set the resolution to as near to TV res as possible it looks poor.

I suppose you sit closer to a monitor than a TV though...

</changes Powerbook's resolution and moves it far away...>

Ahhh... I see.

Thanks.

#4 Thu, 8 Jul 2004 - 07:37

Quote:

Originally posted by Diggory Laycock:
why is it that a TVs can be big and not get fuzzy

Well, they can't.

Not sure what you've been looking at, but it sure warn't regular tv.

#5 Thu, 8 Jul 2004 - 07:38

Quote:

Originally posted by Diggory Laycock:
But I have a relatively large TV (Sony Wega WideScreen 32") - and it looks pretty sharp - how can that be when it's such poor resolution?

If you use a large monitor and set the resolution to as near to TV res as possible it looks poor.

The TV signal is interlaced and the computer monitor isn't. Try and download MacMame and play a game with interlacing turned on - the huge pixels don't seem as bad now.

#6 Fri, 9 Jul 2004 - 14:09

Another major reason why a TV doesn't appear fuzzy is that you sit much closer to a computer monitor than to a TV. If you blow up a video on your computer, play it full screen, and sit 5 feet away, it won't look nearly as pixelated as it would if you were sitting right in front of it.

#7 Fri, 9 Jul 2004 - 16:45

Someone correct me if I'm wide of the mark, but I believe certain companies are now putting "enhancement" technologies into their TVs which increase the number of pixels viewed.

#8 Fri, 9 Jul 2004 - 17:12

Quote:

Originally posted by Sherwin:
Someone correct me if I'm wide of the mark, but I believe certain companies are now putting "enhancement" technologies into their TVs which increase the number of pixels viewed.

Yep, and they do not "enhance" at all IMO. Philips for ex. makes those things. They give an unnatural sharpness to the image and everything seems to be in slow motion. I can't stand it.