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jpegs look interlaced
Hello,
I am working on a project that is 90% jpegs and the rest a mix of ntsc and small amount of HD video. This is going to be for dvd and probably screened on a big LCD TV. My Seq. settings are Apple ProRess 422 (I read that this is good for jpegs), 29.97 timebase, field dom. lower/even. I am doing a lot of zooming and moving the jpegs around the screen. Any suggestions about how to keep quality and remove the interlacing lines that are appearing.
Any help would be appreciated.
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7 Replies
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JPEG can’t be interlaced but if you process them in an interlaced sequence, they will be rendered in a field base. Nothing wrong if you are watching in an interlaced monitor.
If you are watching in a computer monitor (Progressive) you may notice interlacing artifacts, The only way to get rid of this is to render in a Progressive sequence. To do so, you need to de-interlace your NTSC footage.
rafael -
Thanks for your reply.
I have a couple of questions about your reply. I have switched to a dv50 timeline and I am thinking this project will be viewed through a dvd player onto a LCD tv (most are progressive right?) You are suggesting a progressive seq? How do I alter my dv50, 29.9 ntsc sequence to that? and this would effect any ntsc video aswell needing a filter on the footage ?I Appreciate the help.
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All TVs, and that includes LCDs and plasmas, display interlaced video just fine. You seem to be confusing computer monitors with LCD TVs, which are completely different.
David Roth Weiss
Director/Editor/Colorist
David Weiss Productions, Inc.
Los AngelesPOST-PRODUCTION WITHOUT THE USUAL INSANITY ™
EPK Colorist – UP IN THE AIR – nominated for six academy awards
A forum host of Creative COW’s Apple Final Cut Pro, Business & Marketing, Indie Film & Documentary, and Film History & Appreciations forums.
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Hi Carl,
Set “NONE” as your sequence field order; then you need to apply a de-interlace filter in your NTSC footage.
Don’t use the default FC de-interlace filter; is very bad. You can use Nattress de-interlacer or Re_Vision Fields kit. If you don’t want to spend money, you can use Compressor, MPGStreamclip or Jess De-interlacer.
rafael -
Thanks for your reply. I changed the field order to off in seq settings and I looked better. As far as the ntsc footage I’ll have to use compressor. As far as that goes, I see the de-interlace filter but what setting (format) would you suggest I use? I do this before I bring it in to FCP?
Thanks again for your help
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Hi Carl,
Yes you have to do it before to bring it to FC.
Try with MPGStreamclip. Export with the same parameters than your footage and set “De-interlace”.
DON”T EXPORT TO DV, try Prores.
rafael -
I have to ask; what is the quality of ur jpegs? Are they sized to big or to small?
You should be able to edit – interlaced – with jpegs and have it look good.
Chris Tompkins
Video Atlanta
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