Object detection

[Zachary Pincus]

Hi Siggi,

> like Andy suggested, I need the bonding box for each shear. This should represent the diameter in 
> good approximation what leads to the grain size distribution.

In this case I'd also agree with Andy that a template-matching approach might be best, with a library of templates of different sizes. Then for each template-match peak, determine which size template gives the best match, and read out the size distribution from that?

Alternately, you could look at a Hough-circles sort of approach, and again could read off the size distribution straight from the Hough-transformed image. 

Zach