Kathleen,
Thanks, I could see this used two ways with students:
1. In a project where the algorithm is already coded and you simply tune a parameter for your particular Green Screen and lighting. 2. Where the kids themselves learn the algorithm and code it (I am uploading a video now to explain how the algorithm works).
I am uploading a video now explaining how the code works and testing the whole idea out on a group of kids 10-16 where they write the code. These kids actually used the algorithm in a course I told them to take in parrallel to what I am teaching (Coursera CS101). Now I am going to try and see how well that knowledge transfers when they try and implement it in Squeak. One thing I will probably do different next time is break down certain portions of the lesson into smaller chunks.
Stephen
On Sun, Jun 10, 2012 at 10:29 PM, Harness, Kathleen kharness@illinois.eduwrote:
Hi Steve, I liked the green screen idea. You do give a very clear explanation in a very short time. Thanks for the idea Kathleen ________________________________________ From: squeakland-bounces@squeakland.org [squeakland-bounces@squeakland.org] on behalf of Steve Thomas [sthomas1@gosargon.com] Sent: Sunday, June 10, 2012 7:59 PM To: squeakland Subject: [squeakland] Green Screen using Etoys
FYI, I just uploaded a video demonstrating how you can use Etoys to create a Green Screen effecthttp://youtu.be/B39DU7LRgL4.
To do this I purchased a $30US Green Screen, but it can also be done with a green folder (~$0.35US). Kids can use this to create their own stop motion animations, recording a set of movements once, then re-using that set of movements in multiple scenes, with different backgrounds and other "actors".
In the next Etoys Minute and hopefully Blog Post I'll do a Squeak code walk through of code and post a link to the project so others can try it for themselves.
Stephen