I've used Sam's demo to present high-throughput screening in MATLAB, and am a big fan. This is an extremely well-thought-out demo that describes in great detail a very nice image-processing and curve-fitting workflow. It includes discussions of image exploration and algorithm development, stepping through to automation and batch processing, and ending with a nice implementation of the code in a distributed (cluster) environment. The subject matter is real and relevant. I highly recommend this to anyone who wants to improve his or her understanding of how MATLAB can help streamline an otherwise tedious image processing workflow.