ImageJ is very handy. I personally have used it to calculate the area of 
scanned leaves.

Cheers,
Surya

-----Original Message-----
From: Ecological Society of America: grants, jobs, news 
[mailto:[email protected]] On Behalf Of Malcolm McCallum
Sent: Monday, May 19, 2014 10:02 PM
To: [email protected]
Subject: Re: [ECOLOG-L] how to measure area with Photoshop

ImageJ from the NIH works pretty well, or so I've been told.  I have not used 
it, I used to have an old version of Image tool which predated ImageJ and it 
was very user friendly even though intended for microscope work.

On Mon, May 19, 2014 at 9:41 AM, David Inouye <[email protected]> wrote:
> My brother's been using this technique to measure area by using images 
> grabbed from Google Earth.  Looks like it might work better for some 
> of the areas I've been measuring by walking the perimeter with a 
> hand-held GPS
> (Garmin) that can measure area that way.  He provided a link to this 
> resource for more information about the technique:
> http://blog.duklabs.com/?p=219
>
> David Inouye



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