Image Analysis: identifying objects with Mathematica 7.0

*To*: mathgroup at smc.vnet.net*Subject*: [mg98562] Image Analysis: identifying objects with Mathematica 7.0*From*: GidiL <gidienator at gmail.com>*Date*: Mon, 13 Apr 2009 03:31:21 -0400 (EDT)

Hi All! I would appreciate any input on the following problem: After scanning my samples with TEM, I get images (JPEG or TIFF) which contain many dimmers, e.g. gold nanoparticles connected via some other molecule. Approximately half of the popoulation is that of dimmers, while the other half contains trimmers, monomers, etc. I would like to run some statistics on the samples. I read Theodore Gray's post in the Wolfram Blog about the new capabilities of image processing in Mathematica 7.0.1 and I would like to ask if it is possible to do the following in Mathematica: Pick out a square that contains the dimmers, define that square as a new image, and then let Mathematica search for such an image within the original image. I know that Mathematica has a new function MorphologicalComponents that is apparently the key to getting this done, but I don't really understand how to use it. It is also supposed to return the coordinates of the located images, but I don't know how to extract this output from the function. Thanks, Gideon

**Follow-Ups**:**Re: Image Analysis: identifying objects with Mathematica***From:*Matthias Odisio <matthias@wolfram.com>