This has been a bit of an unforeseen mission! Generally speaking it has gone along fine but there have been a few moments of 'when will it end!' After keying out the blue colour, there was still a bit of grey fringing going on. On the good latte I thought it was necessary to keep all the hands in for Tom to trace over and create the cartoon hands. Half way through doing it Alex mentioned that I didn't need to worry about the hands as Tom could just start using the live action footage to trace over and then comp it later. I thought I may as well continue tracing areas out around the hands for the rest of the good latte and it could go on my showreel. On the bad latte I adopted a much simpler method as you will see further down..
Heres an image from the original footage.
I divided the images into groups of 50 and set up a work flow through composite, keying the images then adding several animated garbage masks to go over the grey zones. The grey fringing occurred because when I extracted all the blue background using the keyer it also extracted other parts of the image where the blue was reflected (such as parts of the cup.) So I could use keying but only to a certain extent.
Generally it was fine - I added around 5-10 masks for each 50 frames but for the penultimate 50 frames of the good latte I had to add over 30 animated masks! This was mainly to eliminate the grey fringing caused by motion blur from the hands and jug.
The first image shows the grey areas that needed extracting, then the next one shows all the masks that I needed to create to do it! This was after Alex told me I didn't have to worry about the hands so it was my own provocative.
This image is taken from the badly poured latte. In contrast to above, I did this way quicker. It just required 2 masks - 1 static mask for the cup then another animated one for the jug. As you can see I didn't worry about the arms or hands here. I kept the keyer applied to keep the colours consistent to the good latte.
Here is the result of my work. You can see white fringing around the hands in the good latte movie, but in practice once these are imported into animate pro and the transparency is set to straight the white fringing goes away so it shouldn't be a problem.
It feels good to say I have now completed this task!
(provided that Alex is happy with it..)
Wednesday, 6 April 2011
Barista Post progress - rotoscoping complete :-)
Posted on 07:03 by Unknown
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