Jump to content

Roxio Community

Digital artifacts on slide show


  • Please log in to reply
1 reply to this topic

#1 bhochman

bhochman

    Newbie

  • Members
  • Pip
  • 1 posts

Posted 21 June 2006 - 06:49 PM

Burning dvd any way after video wave produces slides that are fuzzy around edges with digital artifacts on high def tv.  I have imported uncompressed tif files.  Is the fuzziness because of the size of the file?  What is the optimum  size and resolution of picture file to import to videowave to use in burning dvds to play on a wide variety of dvd players and tv sets?
    Bill H.

#2 vid2man97

vid2man97

    Digital Master

  • Members
  • PipPipPipPipPip
  • 393 posts
  • Gender:Male
  • Location:Niagara Falls, Canada

Posted 22 June 2006 - 07:33 AM

If you are talking about 'regular' TV, your pics should be 640X480 (square pixels).  
Going to HD TV, size your pics to match your particular screen...e.g., 1280X720.
As far as file sizes go, you'll save yourself time and harddrive space by using small ones.  There's a guidline that the TV shows 72 ppi, so a file that's 640X480@72ppi is all that's needed and it's up to you if you want to use tif or jpeg.  That might be why you're getting artifacts.  I'll just make a guess that rendering it from a large tif did that to you.  It shouldn't but it's an imperfect world.

Because your computer uses square pixels, and regular TV uses rectangular, your 640X480 'expands' to 704X480.  This gives you two choices.  Size your pic to 640X480 on your computer and let it grow or use your imaging program (if you have one and if it allows you to change the pixel aspect ratio to .9) to make a 704X480(p.a.r. 0.9) pic and use that.

That all said (I tried to be brief and if you need more detail, let me know), if you want to get picky, you just have to know where your DVD will be played.  The pictures will look very different played from regular tv, to 50" widescreen tv and so on.  You can't make one-size-fits all right now.  I'm stating the obvious, but the tv world is in transition and everyone have something different.  You could make a slideshow specifically for every customer for their particular tv, or make one and tell everyone to watch it and if it looks a little 'odd', enjoy it anyway.  It depends on how much work you want to make for yourself.

By the way, last I heard, to make true HD dvds, you need to get the ver.8 program.
"I'd rather be happy than right any day of the week"

i7 950
300 gig velociraptor
1000 gig WD
12 gig DDR3
2-Pioneer burners
ATI 5670 1gig card
Win7 Pro 64bit
750W Thermaltake ps




1 user(s) are reading this topic

0 members, 1 guests, 0 anonymous users