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From: ImageAnalyst <imageanalyst@mailinator.com>
Newsgroups: comp.soft-sys.matlab
Subject: Re: damage measurement in a micrograph
Date: Wed, 28 Oct 2009 16:22:40 -0700 (PDT)
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On Oct 28, 5:36 pm, "Krishna Chaitanya" <chaitanya.a...@gmail.com>
wrote:
> Hi all..i'm new to matlab and i need some help...
>
> I have to analyse a micrograph(is a picture showing grains, grain boundaries and defects) of steel and find the area damage in the micrograph...its an RGB image which looks like a greyscale image...i want to measure the lengh of total grain boudnaries and the area fraction of the damage...i worked out for grain boundary detection but aunable to find the area fraction of damage...
>
> can anybody help me out..??

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But you didn't post an image for us to look at?
So all I can do is to refer you to this in hopes that it may help you
some:
http://www.mathworks.com/matlabcentral/fileexchange/25157