On Mon, Jan 9, 2012 at 8:05 AM, Tony Yu <tsyu80@gmail.com> wrote:

You know what: I think I'm just going to merge your Harris detection pull request as it is now, and then I'll start a new pull request with the peak detection part factored out.

I think that's the way to go. Peak detection would be very useful--it crops up all over the place. I was trying to recall who recently shared a review of peak detection algorithms with me, and I think it might have been you :) There are so many out there, almost all heuristics. Typically, there are two varieties: those that simply consider the input data (e.g., dividing the image into windows and choosing the maximum value in each), and those that in addition consider other peaks found (e.g., to avoid identifying very closely spaced peaks). The problem takes on an interesting twist when working with noisy data, where many points seem like peaks but aren't. Here, multi-level decompositions such as the Gaussian scale space or wavelets are often employed. Regards Stéfan