how do i change interlaced 2 progresive? applies 2 all video editing apps not just AE

[africanmarty]

how do i change interlaced 2 progresive? (applies 2 all video editing apps not just AE) for FREE, without the use of buying plug-ins ? fee plug ins are fine:grin:
i thought someone might know.

The software i have at my finger tips are :

premier pro 2
after effects 7
vegas 7
virtual dub
avi synth

if anyone knows a tutorial, or can walk me through this it would be greatly appriciated.

[WesCoughlin]

(applies 2 all video editing apps not just AE)

I think your fallacy is over generalization. There is no one method that applies to all video editing apps for deinterlacing video. And secondly, it seems like a lot of work for someone to explain all those programs to you, maybe try google and see what you get.

But since your in the AE thread, here is a link to a video tutorial on how to deinterlace your video in AE.

http://www.creativecow.net/articles/kramer_andrew/deinterlace/deinterlace.html

[Matt Grunau]

Good tutorial. With miniDV, though, After effects with give you non-interlaced footage when you drag it into the composition by default.

[africanmarty]

thankyou for suck a quick response.

regards Marty.

[Matt Grunau]

You're welcome. But, you need to know that while separating fields and properly interpreting them will allow you to export at 29.92p, you do lose a little resolution, and can have other problems with jagged edges, depending on the shot. AE does a good job giving you noninterlaced frames, but that isn't true progressive, and if you are doing something that will ultimately be viewed on a TV, you need to output with the fields as they were in the original footage. You will retain the most quality that way.

[africanmarty]

AE does a good job giving you noninterlaced frames, but that isn't true progressive

Does that mean if i used that tutorial on my footage , the end result footage wont look progressive ? It wil look like the standard interlaced footage ? Or somewhere in between.
I would have tried the tutorial by now but i'm @ work and the computers @ work are shi* and we dont have sound.

- regards Marty.

EDIT: I'm thinking deinterlacing interlaced footage should make a progressive image in the sense that all NLE's will treat it as such, But the image quality wont be as good as the raw footage.

[Matt Grunau]

Does that mean if i used that tutorial on my footage , the end result footage wont look progressive ? It wil look like the standard interlaced footage ? Or somewhere in between.
I would have tried the tutorial by now but i'm @ work and the computers @ work are shi* and we dont have sound.

- regards Marty.

EDIT: I'm thinking deinterlacing interlaced footage should make a progressive image in the sense that all NLE's will treat it as such, But the image quality wont be as good as the raw footage.


That tutorial does not really give you noninterlaced frames, rather it is a workaround to give the appearance of it. I took the project file from that tutorial, opened it and took a look see. Then I took the footage it came with, told AE to treat it as Lower Field first, and checked each frame against the other. The results were identical, with no extra work. There is a reason for all these workarounds and tutorials to have your interlaced footage look like progressive, and the reason is simple: Make your footage look like individual frames. You don’t need anything other than AE’s built in processes to get that look, But the biggest factor is: if you shot interlaced, stay interlaced.

Noninterlaced and progressive are almost the same thing, but not quite.

The end result of that tutorial will look like individual frames, but will not give you any better results than if you simply had AE interpret your footage as Lower Field, applied the Preserve Edges in the Interpret Footage dialogue, and then rendered without fields. But you will lose detail, because of the conversion. Not a hell of a lot, but you will lose some.

That's why working with interlaced footage can be so damn tricky. AE needs to recognize the footage as interlaced, and separate the fields accordingly, and give you in the composition something that will not suffer from interlaced artifacts during manipulation. But it is not a true deinterlacer. It is close, but not perfect. AE still has to try and assemble full frames from interlaced, and that causes problems. Most people won't notice or be able to tell the difference, especially on TV, which is most forgiving in that regard. It all really comes down to what your end product will be viewed on. If it's a TV, allow AE to interpret the footage as it will, and make your adjustments and tweaks there. But, render out as interlaced. If you truly need noninterlaced, AE will give acceptable results. But not as good as if you stayed within the standards you shot.

So it all depends on what the end result if for, TV, or web. If it is regular TV, which can’t display noninterlaced or progressive footage, in your final steps of making a DVD or other output to TV, your software will take your footage and again reduce it to interlaced. Best to stay there the entire time.

It is a little confusing, so I suggest you look online for interlaced to progressive or interlace to noninterlaced for more info. And before you ask, no, shooting with your camera in frame mode or in progressive mode (not counting Panasonic 24p, obviously) won’t do much better. All your camera will do is try and assemble full frames from what is essentially an interlaced based system, and the same minor loss of quality and resolution will happen in camera just as it will in software.

But we are getting to the point of nerd numbers really. AE’s “progressive” output will be fine in most cases, if that is the final destination of your footage. What really is important is how much detail you have to have, and if using AE’s native features will do the job.

[africanmarty]

thanks matt, learnt alot :)