de-interlace effect

[David Roth weiss]

Rob,

What exactly is your reason for deinterlacing?

For the record, the use of the deinerlace filter has but one good use and inummerable uses that only seem good in one’s imagination and ulimately create problems rather than solutions.

In addition, the deinterlace filter in FCP, even when used properly, is not known as a particulary good one.

David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los Angeles

POST-PRODUCTION WITHOUT THE USUAL INSANITY ™

A forum host of Creative COW’s Apple Final Cut Pro, Business & Marketing, and Indie Film & Documentary forums.

[Rob Grauert]

What I did in my timeline was have a clip play, and then when it got to a certain point i made it a freeze frame. I used the de-interlace filter to stop the frame from vibrating. It made it easier to bring that freeze frame into Motion.

Here’s the vid so you can see what I mean:

https://vids.myspace.com/index.cfm?fuseaction=vids.individual&videoid=2111669544

I was curious to see what it would do if I did it on a clip that had motion. I didn’t really see a difference. I kind of looked choppier, but I kinda liked that look though. I wanted to know if anyone on here knew if it would cause any problems.

Robert J. Grauert, Jr.

[Rafael Amador]

The clips where you have applied the effect will look like progressive, but your movie still being interlaced. You wont have problem for exporting or recapturing as such.
If your images have a lot of movement, just choose a good deinterlacer.

Mac OX 10.5.2-FC 6.02-QT 7.4.1
G5 2x2Gh 4GbRAM-BlackMagic Extreme
PMBP 17″Core2Duo 4GbRAM-AJA ioHD
JVC DTV-17″
SONY EX-1 . SONY PD170
..and always a big mess on top of the table.

[Rob Grauert]

awesome. whats a good de-interlacer. can you download one and place it in the “plug ins” folder for final cut?

Robert J. Grauert, Jr.

[Andy Mees]

[Rob Grauert] “I didn’t really see a difference”

were you looking on a external reference monitor or just in the canvas/computer display? you’re not seeing interlaced output on your canvas/computer display so you probably wouldn’t see any difference there … adding the deinterlace in FCP is basically like throwing away half of the vertical resolution of your source. how drastically that affects your footage, whether adversely or not, is something only you can judge.

[Rob Grauert]

I was looking at it on an external monitor. There was a difference, it just wasn’t much. I didn’t think it was a big deal, but then again, I’ve only been doing video since 2005.

I just wanted to know if using this effect would cause any major problems that I was missing or was lucky enough not to experience. Thats all. I understand FCP’s isn’t that good though, so I probably won’t ever use it again unless I have too.

Robert J. Grauert, Jr.

[Andy Mees]

i’m with you … as noted, technically you’ll be absolutely fine, so if you’re OK with the look then you’re good to go.

as for a good deinterlacer … not something I have need of so I’m no expert in this field (groan, sorry) but do take a look at Re:Vision’s Fields Kit which I believe is considered to be very good.
https://www.revisionfx.com/products/fieldskit/

then there’s Graeme Nattress’ excellent plugin collections which include filters which apply his big brain to the task of deinterlacing
https://www.nattress.com/Products/filmeffects/G_Smart_DeInterlace.htm

in the cheap seats you might want to have a look at JES Deinterlacer
https://www.xs4all.nl/~jeschot/home.html

[David Roth weiss]

Rob,

Andy mentioned what I was referring to in my post late last night. Deinterlacing may sound like “a cure,” or it may even appear to be a cure, but it rarely is as it fixes an appren problem but it loses half your vertical resolution in the process. Thge reason it seems like a fix is because you can’t see the problem at half its original rez and you might as well have dropped a blur on it.

When making a still frame from moving footage, choosing another frame often fixes the jitter, but with fast moving footage you may be stuck having to deinterlace.

David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los Angeles

POST-PRODUCTION WITHOUT THE USUAL INSANITY ™

A forum host of Creative COW’s Apple Final Cut Pro, Business & Marketing, and Indie Film & Documentary forums.