Ole Alm wrote:
> Prøv og læse denne her, der får du det meste forklaret
>
>
http://dvddemystified.com/dvdfaq.html
Er der ikke en fejl her:
<snip>
[3.4.1] What does "lines of resolution" mean?
[...]
Technically, lines of horizontal resolution refers to visually
resolvable vertical lines per picture height. In other words, it's
measured by counting the number of vertical black and white lines that
can be distinguished
an area that is as wide as the picture is high. The idea is to make the
measurement independent of the aspect ratio. Lines of horizontal
resolution applies both to television displays and to signal formats
such as that
produced by a DVD player. Most TVs have ludicrously high numbers listed
for their horizontal resolution.
Since DVD has 720 horizontal pixels (on both NTSC and PAL discs), the
horizontal resolution can be calculated by dividing 720 by 1.33 (for a
4:3 aspect ratio) to get 540 lines. On a 1.78 (16:9) display, you get
405
lines.
[...]
<snap>
Skal man ikke dele de 405 med 2 (og altså nå ned på sølle 203) - da der
skal to pixel-linier til at lave en synlig lodret linie - ligesom at
cd'ens 44100 hz kun kan gengive lyd op til 22050 hz?
-Rune