why does a 1920x1080 (1080p) wallpaper look bad on a 3D HDTV used as a monitor?

high quality hdtv wallpapers image

bdawwl

Ok asked this question a few days agou and got a good answer but read bottom for my new question:

I have done some research and from what i can see a 1080p still frame is about two megapixels in quality. After researching spatial resolution my understanding is that for 1920x1080 to be displayed accurately it would have to be displayed on a 19" x 10" screen? So does that mean my wallpaper looks lame because its having to stretch it to over double the size on a 47" HD screen? now i have tried to use a 3840x2160 wallpaper but it didn't fit the screen. So i resized it in photoshop (but wouldn't this knock the resolution down (i mean quality)? As you can see i'm confused and not very aware of what i'm talking about...in short i guess my question is.... How do i get a wallpaper to look good on a large (47") 3D HDTV being used as a monitor for a computer?

extra info:

I do have a hdtv card that I use to watch tv (looks great from a distance!) when using tv as a monitor viewing distance is about a 70-100cm

New Question:

If I was to take a larger image i.e. 3840x2160 and open it in photoshop, then create a new 1080p size image and increase the dpi to say 200 and then free transform the large image to fit the 1920x1080 canvas would that make an image look sharper by cramming more dpi into a smaller canvas? or am i completely off there?

Answer
1920x1080 as in pixels , inches unknown, due to resolution unknown
http://www.wallpaperfx.com/view_image/dry-leaf-art-1920x1080-wallpaper-10765.jpg
http://www.wallpaperfx.com/3d/others/dry-leaf-art-wallpaper-10765.htm
__________

(1080p) HDTV progressive scan, not / (1080i) interlaced
http://www.wikipedia.org/wiki/1080p

so set the monitor aspect aside, and look at image quality itself,
the inches or centimeters, the resolution ppi/dpi, and effectively pixel count,
___________

open you original image in photoshop, view image size details,

1920x1080 at 72 ppi is 26.6 x 15 inches,
1920x1080 at 300 ppi is 6.4 x 3.6 inches,
yet > 26.6 x 15 inches at 300 ppi is 8000 x 4500 pixels

quality print size for resolution is 300 ppi/ dpi,
but that from photo being large 30 x 20 inches at 72ppi , as example
is resized down to photo 5x7" at the 300 dpi,
not the monitor screen size of 47" or ~ (40.96 by 23.04 inches)

if for 41 by 23 inch guesstimate size, at 72 ppi resolution,
you want 2949 by 1656 pixel which is around 6.2 mega pixel image from camera,
still suggest 7 mp 3128 x 2346 *or higher , then size down or resample,

you do not or can not take smaller 1920x1080, the double or resize, as its quality/ sharpness/ blur focus is only enhanced, not the detailing,

you can take larger image greater than 6.2 megapixel, and bring down to 16:9 [2949 by 1656] ratio,
the higher the original mp, or quality, the better for viewing and refitting to wallpaper,
other issue could be large size and high resolution, then would require more memory to store data in file, where 1 megabyte file could increase by colour and depth,

MegaPixels
http://www.hugge.netg.se/java/MegaPixels.html

47" LG , M4712C / example
http://www.lg.com/uk/commercial-display/lg-M4712C

16:9 aspect ratio
http://www.wikipedia.org/wiki/16:9
..

PS3 vs Xbox 360?

Joey

I am thinking of buying one of them but i dont know which one to get. I am used to the plastation paddles. I know Xbox has Halo which is a plus for that. But I also want to use it as a computor in my bedroom. So which ever one is better at online. Just give me your reasons why you like one of them.

Answer
i would go for the ps3 for these reasons: It has a great built in web browser. also has built in wifi so u wouldn't need to connect it directly to an Ethernet cable is you have a wireless router.
The PSN (playstation Network) is free to all playstation owners, and is great for online play. also the psn has the playstation store which is great for downloading free demos, videos, trailers,wallpapers and themes and psn games which cost a little doe. also the ps3 has a built in blu ray player for playing the highest quality movies on the market. an 80 gig system makes for a great central entertainment piece, can store movies, music, pics and games. Wanna really get set up and get the full experience, then get an hdtv and 5.1 surround sound!
The xbox 360 has xbox live which costs 50-60bux a year. the 360 does not have a web browser yet but might be added in future updates. if you buy the elite system you will get built in wifi but if you don't you will have to pay and extra 100-120 bux for it. When it comes to games xbox does have halo, but you can only have so much fun with 1 game, ps3 has some great games and some great games on the horizon(metal gear solid 4, gran turismo 5, resistance 2, killzone 2....)
2008 is definitely gonna be a great year for ps3, tons of great games are coming out... and Home too, look it up.
i traded in my 360 for a ps3 near launch and i don't regret it. but the final decision is up to you of course. good luck, and if you get i ps3 add me, "proffesor_chaos"

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