De-interlacing at DVinfo.net

Jason Tammemagi · July 28th, 2003, 02:47 AM

I used a trick, which I saw in one of the tutorials on this site, which was to have two layers in After Effects - one with the bottom layer first and then one above at 50% with the top layer first. However, I have noticed that I'm getting a slight grid effect.

Is there a better way of de-interlacing or is this grid effect normal?

Thanks in advance,
Jason.

Michael Robinson · July 28th, 2003, 11:20 AM

This trick has been around for awhile (a gentleman on 2-pop stumbled across it). As for the grid effect, are you referring to jaggies, or stairstepping on your edges? If so, then you will still get some. Another method is to use the Adobe Photoshop deinterlacer plug in directly inside of After Effects, just move your plug-in from your Photoshop plug ins folder to your AE one.

A free deinterlacer for AE is available from Pete Warden @--

http://www.petewarden.com/

Try that one, and see if you like it. There are some other filters in there like Glow, Bloom, Dilate, and Smear that make it worth the download though.

Reelsmart Fieldskit is the best deinterlacer on the market. For a comprehensive article on deinterlacing from Barend Onneweer (he posts on here and at the Cow)--

http://www.creativecow.net/articles/...ing/index.html

Gerald Lee · July 29th, 2003, 09:42 AM

I tried frameblending and while they destroyed all the jaggies, the picture was pretty blurred. I guess that's good if you want that effect.

Jason Tammemagi · July 29th, 2003, 09:54 AM

Really? Thanks. Looking forward to see what my footage looks like when I get home.

I'm joking of course, did you mean to post in a different thread?

Jay.

James Farley · July 29th, 2003, 02:59 PM

Try checking out this web site. It has instructions on Deinterlacing your 60i footage with Progressive Scan deinterlacing using freeware programs. It also presents the advantages and disadvantages of various deinterlacing methods.

Link: http://www.100fps.com/

Gerald Lee · July 30th, 2003, 01:09 PM

I'm getting that problem again. When I follow that motion clarity tutorial in aftereffects, I keep ending up with 12 fps. I set the posterize time to different framerates, but I always end up with 12 fps. Anything I'm doing wrong?

Jason Tammemagi · July 31st, 2003, 01:20 AM

That grid effect I was getting actually looks like the same 'vertical lines' effect that is in a topic in the 'editing on pc' board so it's quite possible that it had nothing to do with the method of deinterlacing but actually the program.

I used After Effects, although the people in that topic were using Premiere. Not sure what to do about that...

Jay.

Gerald Lee · July 31st, 2003, 02:09 AM

Okay I fixed my problem. I get those jaggies as well. I just tried the same method with Pete Warden's deinterlacer which smoothed out the jaggies but not completely. Any other free deinterlacers out there?

July 28th, 2003, 02:47 AM	#1
Jason Tammemagi Regular Crew Join Date: Mar 2003 Location: Dublin, Ireland Posts: 43	De-interlacing I used a trick, which I saw in one of the tutorials on this site, which was to have two layers in After Effects - one with the bottom layer first and then one above at 50% with the top layer first. However, I have noticed that I'm getting a slight grid effect. Is there a better way of de-interlacing or is this grid effect normal? Thanks in advance, Jason.

July 28th, 2003, 11:20 AM	#2
Michael Robinson Regular Crew Join Date: Jan 2003 Location: Philly, PA Posts: 40	This trick has been around for awhile (a gentleman on 2-pop stumbled across it). As for the grid effect, are you referring to jaggies, or stairstepping on your edges? If so, then you will still get some. Another method is to use the Adobe Photoshop deinterlacer plug in directly inside of After Effects, just move your plug-in from your Photoshop plug ins folder to your AE one. A free deinterlacer for AE is available from Pete Warden @-- http://www.petewarden.com/ Try that one, and see if you like it. There are some other filters in there like Glow, Bloom, Dilate, and Smear that make it worth the download though. Reelsmart Fieldskit is the best deinterlacer on the market. For a comprehensive article on deinterlacing from Barend Onneweer (he posts on here and at the Cow)-- http://www.creativecow.net/articles/...ing/index.html

July 29th, 2003, 09:42 AM	#3
Gerald Lee Regular Crew Join Date: Jun 2003 Location: Arlington, TX Posts: 64	I tried frameblending and while they destroyed all the jaggies, the picture was pretty blurred. I guess that's good if you want that effect.

July 29th, 2003, 09:54 AM	#4
Jason Tammemagi Regular Crew Join Date: Mar 2003 Location: Dublin, Ireland Posts: 43	Really? Thanks. Looking forward to see what my footage looks like when I get home. I'm joking of course, did you mean to post in a different thread? Jay.

July 29th, 2003, 02:59 PM	#5
James Farley New Boot Join Date: Jun 2003 Location: N.Y,N.Y. Posts: 20	Try checking out this web site. It has instructions on Deinterlacing your 60i footage with Progressive Scan deinterlacing using freeware programs. It also presents the advantages and disadvantages of various deinterlacing methods. Link: http://www.100fps.com/

July 30th, 2003, 01:09 PM	#6
Gerald Lee Regular Crew Join Date: Jun 2003 Location: Arlington, TX Posts: 64	I'm getting that problem again. When I follow that motion clarity tutorial in aftereffects, I keep ending up with 12 fps. I set the posterize time to different framerates, but I always end up with 12 fps. Anything I'm doing wrong?

July 31st, 2003, 01:20 AM	#7
Jason Tammemagi Regular Crew Join Date: Mar 2003 Location: Dublin, Ireland Posts: 43	That grid effect I was getting actually looks like the same 'vertical lines' effect that is in a topic in the 'editing on pc' board so it's quite possible that it had nothing to do with the method of deinterlacing but actually the program. I used After Effects, although the people in that topic were using Premiere. Not sure what to do about that... Jay.

July 31st, 2003, 02:09 AM	#8
Gerald Lee Regular Crew Join Date: Jun 2003 Location: Arlington, TX Posts: 64	Okay I fixed my problem. I get those jaggies as well. I just tried the same method with Pete Warden's deinterlacer which smoothed out the jaggies but not completely. Any other free deinterlacers out there?