PDA

View Full Version : Motion Tracking+ Colour Correction

dell
04-27-2007, 02:21 PM
Hi All





I'm in the process of tracking some DV footage; I've painted over a window from the footage within photoshop, then imported that layer and tracked it over the footage within AFX, which works great. But because the painted area is a static image, the light does not change with the footage.



How can I colour match the painted area & DV footage dynamically, which I have tracked. I've tried colour stabilize with poor results. I'm hoping I don't need to manually key a colour corrector.




Please view the attched movie,

Sorry for the poor quality, due to compression


http://img531.imageshack.us/my.php?image=trackingcompletexq8.flv








Thanks in adv
scrimski
04-27-2007, 03:15 PM
Apply a gradient on that area, pick and animate the colors for both points over time.
dell
04-27-2007, 08:48 PM
Sorry I'm to sure what you mean, what would this gradient do?


Thanks
Hugh
04-28-2007, 07:24 PM
Rather than animating it by hand, what you want to do is use your track to isolate a bit of wall next to it and get some kind of colour analysis from it - I'm not an AE user, but there must be some way of doing this. If you can do this on all four corners of the window and use a 4-corner grad to adjust the colour as the shot progresses, you'll get the best result.
dell
04-30-2007, 09:23 AM
Thanks Hugh

There's no native dynamic colour sampling tools within AFX 7. Unlike within CS 3 which has based on expressions. So you could create an interactive eyedropper tool.

My only other option is to by a plugin like digital Anarchy Toolbox, but thats not going to happen any time soon.


Thanks again ;-)

PS great blog
scrimski
04-30-2007, 12:18 PM
There is no need for a dynamic tool. Analyze you footage and set keyframes from time to time for the colors of the gradient.
CGTalk Moderation
04-30-2007, 12:18 PM
This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.