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stepping and de-interlacing
I am editing some old NTSC DV footage for the first time on FCP7, I am seeing some stepping on hard/contrasty horizontal surfaces which I don’t remember seeing from my old NLE. This seems to change depending on what size I set my viewer, but the stepping is most evident when I view full frame (Digital Cinema Desktop Preview) on my MBP. I don’t have a proper monitor. I have tried the default Apple De-Interlace effect (upper odd) and it seems to take the edge off, at the cost of considerably softening the entire image. I wonder if this is the best solution. I also wonder if I have imported the footage correctly (DV NTSC 48Khz) in the first place, not having noticed the stepping before on other non-linear editors?
I greatly appreciate any light that anyone can shed on this problem.
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4 Replies
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[Peter Hall] “his seems to change depending on what size I set my viewer,”
That’s the proper way of setting the window.[Peter Hall] ” I have tried the default Apple De-Interlace effect (upper odd) and it seems to take the edge off, at the cost of considerably softening the entire image.”
DV is LOWER FIRST.
The default de-interlacer is not a good filter. You can try Revision FieldsKit or, the Nattress deinterlacers or JES de-interlacer (stand alone),.
Rafael -
Thanks Rafael, the sequence is set to lower (even) dominance, but the default de-interlacer only removes the stepping when it is set to upper (odd). I agree it is probably not very good but it is better than Stibs and TMTS de-interlacers I have already installed. I shall look into those products you suggested. Thanks for coming through, once again!
Peter Hall
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If your footage is interlaced it will not look good on a computer screen as they only display progressive.
Don’t deinterlace that DV footage if going to DVD.
Deinterlace it when you create a delivery for web or comp. screen.
Chris Tompkins
Video Atlanta LLC -
Thanks Chris, valuable points, well noted. Looks like I’ll have to make different versions applying de-interlace in the few clips that need it. Mostly it will be for Youtube/Vimeo or QT file distribution. Much obliged for your info.
Peter Hall
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