Hi! Ricardo,
Image segmentation is utilized in separating out a region in terms of
say, pixel intensities (color value) among other techniques. Other
options are manual selection of region and calculating the pixels
lying inside the region though this would be a very crude (read:
Un-scientific) technique.
You might like to look out for segmentation as an option. Of course, my
suggestions are more in the form of answers than solutions. The
segmentation algorithms we have written for ourselves are serving me best
for our Medical Imaging related work.
warm regards,
- Divya Rathore
http://www.ryze.com/go/divyarathore
> Ricardo Scrosati <scrosati@xxxxxxxxx> wrote:
> Hello:
>
> I was searching the internet for image analysis software and I found
> ImageJ. The reason for my search is that I need to measure the
> surface area of a variety of seaweeds. For this, I can take digital
> pictures of several specimens. With ImageJ for MacOS X (version
> 10.3.7), I could delimit the outline of each specimen in a TIFF file.
> However, I can't find how to tell ImageJ that I want to measure only
> the area of each specimen. Every time that I click on "measure", I
> get a measure of the area of the whole frame. Can ImageJ measure the
> surface area of each specimen separately? Is there a way of telling
> ImageJ that I need an area measure only for a specific image, with an
> irregular outline, that is within a given frame? I'm new to image
> analysis, so I'd be very grateful for tips that you could offer.
>
> Many thanks,
> Ricardo
> --
>
>
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