Help on Morphing

5 replies [Last post]
Main Man
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Joined: Jun 24 1999

Hi, I have just got hold of Gryphon's Morph Artist, which is the best Morphing program that I have currently come across. The main reason in using this over my previous morphing program (Ulead's one) was the fact that you can morph moving video as well as still images.

So what is my problem?

Well, for example, when morphing two faces, with a background, the faces morph ok, but the background also morphs which is not what i want.

I want the two faces to morph but the background to stay perfectly still, just as it originally was!!! The background is exactly the same and in the same place relative to the screen in both images.

How can it be done??

Does anyone know of any web sites devoted to morphing and morphing techniques?

Thanks in advance,

Main Man,
Click below to see a sample of the problem http://www.mainman.currantbun.com/morph.gif

[This message has been edited by Main Man (edited 12 September 1999).]

[This message has been edited by Main Man (edited 12 September 1999).]

Christian Lett
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Joined: Apr 26 1999

I think to do it properly you're going to need a blue screen.

Shoot the two sequences you want to morph together against a blue screen, do the morph in your program and then superimpose the morphed sequence onto a backplate. As I've found out though, unless you've got a grand or so to spend on decent chromakeying software, getting a convincing blue screen to work will be very difficult.

Which part of the background is morphing? I assume that it's the area immediately around the foreground subject (as the rest shouldn't change)?

Christian.

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Christian J. Lett
[email=clett@nationalexpress.co.uk]clett@nationalexpress.co.uk[/email]

Christian Lett After Effects and Maya Artist www.quarterlightpictures.com

chris thomas
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Joined: Apr 23 1999

Assuming that particular morphing program works in a similar way to the ones I've seen, you will need to morph the background back into the same place.

As well as picking control points on the faces of the two people being morphed, you'll need to pick other control points for the background.

I think the best way would be to pick background points very, very close to the control points for the faces, yet keep the background points identically positioned between the two clips. Hopefully, your background will not move much.

I suspect that Christian's way is better, though.

Chris.

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Chris Thomas.
[email=chris@computer-manuals.co.uk]chris@computer-manuals.co.uk[/email]
http://computer-manuals.co.uk

Chris Thomas. http://cptv.co.uk - over 30 minutes of streaming video to bore yourself with!

Main Man
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Joined: Jun 24 1999

Thanks, I have access to a blue screen at college, but as you say, it probably won't give very convincing results. I have done a similar thing to Chris, but instead of placing control points on the background, I place a "boundary" around the morphing area to prevent anything outside the boundary from morphing too.

Here are the results, not to bad, eh?

Thanks again,

Main Man.

Main Man
Offline
Joined: Jun 24 1999

Thanks, I have access to a blue screen at college, but as you say, it probably won't give very convincing results. I have done a similar thing to Chris, but instead of placing control points on the background, I place a "boundary" around the morphing area to prevent anything outside the boundary from morphing too.

Here are the results, not to bad, eh?

Thanks again,

Main Man.

chris thomas
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Joined: Apr 23 1999

Pretty good! You can still see the background moving slightly around the top of the head, and there's a little black bar across the bottom of the first image. It's only noticable if you look for it, but I guess it would be obvious on a full screen TV. Any ideas on how to improve it? How much was the software, and where did you get it from?
Chris.

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Chris Thomas.
[email=chris@computer-manuals.co.uk]chris@computer-manuals.co.uk[/email]
http://computer-manuals.co.uk

Chris Thomas. http://cptv.co.uk - over 30 minutes of streaming video to bore yourself with!