panning

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panning

Postby seasons » Thu Jul 14, 2011 2:52 am

I'm making an AMV with about a half dozen different sources of different aspect ratios. I've decided to make the whole thing widescreen, which will require me to crop my 4:3 footage.

Here's an image from a clip that I plan on using, first in its original 4:3 aspect ratio:
Image


Here's the same image from the clip with 78 pixels cropped off the top and bottom, now with a 16:9 AR:
Image

This doesn't look very good. So I've been trying to come up with other solutions. Is there a way to "pan" from the bottom of the clip upwards to the top? Essentially, what I want to do is begin the 4-second clip at 0:00 with this:

Image

have the "camera" pan up from the bottom of the top of the original 4:3 frame and end with this:

Image
(note that the motorcycle is moving from left to right in this clip)

I hope I'm making sense, I don't know how better to describe what I'm looking to do here.
The clip, for whatever its worth or anyone who wants to see it, is here: http://www.mediafire.com/?r8796ulk1e5zd5d
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Re: panning

Postby seasons » Thu Jul 14, 2011 3:03 am

I wrote that post this morning but had to run to work before coming home to actually post it.

In the last hour I've been playing around with Virtualdub's pan filter and found a way to pan from top to bottom in my clip using these settings:

Image

Try as I may, by changing the Y Origin and the value of the T Speed, I can't make it begin at the "bottom" of the clip and pan to the top by the time the clip has finished. I think if I put 480 for my Y origin, it begins where I want it to begin, but no changes to the Y Speed (or checking the "Neg" box) makes it go anywhere. Does anyone have any experience using this for vertical panning?
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Re: panning

Postby mirkosp » Thu Jul 14, 2011 4:11 am

Why not just keeping it at 848x636 and panning in your NLE? That oughta be easier... :?
Image
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Re: panning

Postby Mister Hatt » Thu Jul 14, 2011 6:11 am

Animate+crop in avisynth is one way, you can also do it with math I guess, allows you to control speed and whatnot more easily, but harder to adjust. Your NLE should allow you to import the separate clips and run operations like that on them though.

Your frame looks like shit because you upscaled it and not in a particularly good way. If you crop the top, you need to keep it the same width.
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Re: panning

Postby BasharOfTheAges » Thu Jul 14, 2011 10:56 am

mirkosp wrote:Why not just keeping it at 848x636 and panning in your NLE? That oughta be easier... :?

This.

Bonus: If you're mixing ARs and the video is supposed to be high motion, you automatically have an excuse to play around with movement even more than you would have otherwise, and you can add motion to all those static shots you would otherwise pass over.
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Re: panning

Postby seasons » Mon Oct 10, 2011 10:27 pm

delete
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