Great- thanks, all! I was leaning towards OpenCV since it looks like the best opportunity to get to know the <meta charset="utf-8"> <a href="http://docs.racket-lang.org/foreign/index.html?q=ffi" class="RktModLink" style="text-decoration: none; color: blue; ">ffi/unsafe</a> module, and make something interesting at the same time. I'm sure I'll be back with more questions any minute... <div class="gmail_quote">On Tue, Jan 11, 2011 at 12:46 PM, Anthony Cowley <<a href="mailto:acowley@seas.upenn.edu">acowley@seas.upenn.edu</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"> <div class="im">On Tue, Jan 11, 2011 at 9:58 AM, Ben Dean <<a href="mailto:benjamin.dean@aya.yale.edu">benjamin.dean@aya.yale.edu</a>> wrote: > Hmm, thanks, I really appreciate the help. Obviously an oversight on my > part, but I'm targeting OSX and the built-in apple "iSight" or whatever they </div>I heartily recommend OpenCV's highgui module. I've used this on Mac OS X and Linux for interfacing with various cameras with very little trouble, and written bindings to it for other languages. I haven't done so for Racket, but the C API is extremely friendly, so it's just a matter of cobbling together the necessary Racket FFI bits. It works great with the built-in iSight camera. Here's a relevant place in the OpenCV documentation: <<a href="http://opencv.willowgarage.com/documentation/c/highgui_reading_and_writing_images_and_video.html#capturefromcam" target="_blank">http://opencv.willowgarage.com/documentation/c/highgui_reading_and_writing_images_and_video.html#capturefromcam</a>> Anthony </blockquote></div>