Posted by
Herbie on
URL: http://imagej.273.s1.nabble.com/Automatized-object-identification-segmentation-of-fish-from-photos-tp5018968p5018969.html
Good day Johannes,
you may be lucky with some of your images but as you write:
"[...] however the the background is not uniform which might complicate
things"
Segmentation will not be satisfying in most cases, with images such as
the second example image.
Please note that it is very hard and sometimes even impossible to
remedie problems by image processing and analysis that are due to
insufficient image acquisition.
Why not isolate every fish in a small aqurium with suitable background?
Regards
Herbie
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Am 26.06.17 um 12:31 schrieb Johannes Radinger:
> Hi ImageJ users,
>
> I am very new to ImageJ and not at all familiar with the capabilities of
> this tool-set. What I'd actually like to do is to extract a fish from a
> photo, i.e. separate the fish from its background. And as I want to do this
> for many images I am looking for an automatized way. The images look like:
>
>
http://fishbase.org/photos/PicturesSummary.php?ID=4730&what=species>
http://fishbase.org/photos/PicturesSummary.php?StartRow=0&ID=4662&what=species&TotRec=5>
> Is it generally possible to detect the fish as an object and to select it.
> I thought about some kind of image segmentation, however the the background
> is not uniform which might complicate things. Two things are fixed: 1)
> There is always only one fish, so the final result should contain one fish
> and one background 2) The fish is always more or less centered within the
> image.
>
> Any ideas?
>
> /Johannes
>
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