• Apple Final Cut Pro Legacy

  Jitter on edges

  Posted by Nate on March 30, 2007 at 5:53 am

  I am getting an anoying jitter on the edges of a scaled down, cropped and feathered DV image with drop shadow in a YUV NTSC Cine 8 bit timeline.

  I am taking DV footage scaled down, cropped and if you add a feather and drop shadow you get this terrible jitter along the edges. The feather is at 23 on the slider and the jitter is still there at 12. When viewed on an external ntsc monitor. When viewed in FCP canvas the edges have an every other line look -dark-light- and it only shows when playing the time line. Still pictures look great.

  If you take away the feather completely the jitters goes away. (I am seeing similar jitters with a freeze frame with alpha, but I am still trying to fiqure out how to explain this version.)

  I have updated everything FCP 5.11.4 /OS 10.4.9 /QT 7.1.5 and still the jitters

  I have a G4 Dual Gig with the Cinewave RT Card

  Nate replied 19 years, 1 month ago 3 Members · 4 Replies
• 4 Replies

• 

  Rafael Amador

  March 30, 2007 at 11:21 am

  The jittering freeze-frame has being de-interlaced?
  About your scsled-croped footage, make sure that is centered (x=0, y=0) or if you reposicion it make sure that “y” is an even number, never odd.
  Cheers,
  rafael
• 

  Nate

  March 30, 2007 at 1:44 pm

  I have tried de-interlacing and flicker filter..

  I will check my ‘y’ number, thanks
• 

  David Mcgiffert

  March 30, 2007 at 4:05 pm

  Hi,

  Have you looked at this solution? Hope it helps…

  https://www3.telus.net/bonsai/Step-by-Step.html

  David
• 

  Nate

  March 30, 2007 at 4:15 pm

  rafalaos, I did what you suggested. All x-y cordinates is an even number. And I still have the jitters..

  This is a Dv camera tape scaled down, cropped with a feathered edge and drop shadow in a YUV NTSC Targa Cine 8bit timeline placed over a generic color green matte. If I take the drop shadow off – NO Jitter…

  I have made a work around by placing a flat black matte color same size etc behind the DV camera footage and then put the drop shadow on it…. while taking the drop shadow off the camera footage.

  Not the way I want to work but with FCP there is always a way to skin the goose…

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