Can you do this in AE?

Redstreak

Redstreak

Active member
Exhibiting my woeful lack of VFX knowledge, I shot some video a few months ago, thinking I would replace part of it in After Effects. After several hours of frustration, I've realized that I really know next to nothing about After Effects, and can't get this done.
Here's the situation:
I've got someone holding a piece of canvas, which supposedly has a painting on it. I taped a piece of white paper with black squares onto the canvas, intending to replace that later with an image of a painting.
There are three shots altogether. I'd like to be able to replace all of them if possible, but I'll take what I can get. Here are the three shots.
Small:
http://www.davidkong.net/imagereplacement.mp4
Large:
http://www.davidkong.net/imagereplacement.mpg


I realize that the moment when the front of the canvas first becomes visible in the second shot (when the board appears as a straight line for an instant as it is turned) is probably very difficult. I could probably cut around that moment, but I do need the rest of the shot.

 How hard would it be to replace the canvases in those three shots with another image? Say, if it's beyond my abilities, could I hire someone (someone from dvxuser, perhaps?) to do the job for me for a fairly small price? I'm shooting this movie on zero-budget, with no prospects of making money with it. Anything I pay is coming out of my (a high-school kid's) pocket. I'd greatly appreciate any comments or advice.

Thanks, guys!
 - David
 
I want to replace the front of the board with an image of a painting. I don't need to replace the actual three-dimensional object - I just want to paste an image onto it.
 
After effects has a strong tracking ability. I'm pretty sure triple gave you the run through. I could send you a link if you need more info.
 
I was going to run of a test for you, but I'm concerned with two things. First, your edit where you go immediately from the girl holding it face out to the guy taking it off the easel facing the other direction. Then there is the fact that when the girl is showing it, it's in "portrait" orientation and when the man shows it, it's in "landscape". While this doesnt matter so much when getting advice for learning how to do the effect, it might help with continuity of your film.

I'm less concerned with the man picking it up off the easel than I am of the orientation.

Just something to think about.


Edit: On a second viewing, I guess the one the man picks up is a different painting entirely. Maybe if this bit was in context of the whole scene it wouldnt play as confusing.
 
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this is actually really simple to do...

even the parts where you can't see the dots are so short that it can be done by hand. the rest will get picked up by the trackers.
 
Ok, thanks a lot everyone for your help! I guess I'm just going to spend some time watching Lynda tutorials so I have a better general knowledge, and then find a good tutorial on the motion tracker online somewhere. I think I was expecting it to be more difficult that it'll actually be.

GageFX, I just pulled these three shots out of my edit to show you guys. They do not appear in that order in my sequence.

Also, there are three separate paintings being shown. I should have made that clear in my first post. Two of the paintings are landscapes, and one is a portrait. That was intentional.

- David
 
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