Hi, Hiero,
Neural network for this easy problem is like killing a fly with a hammer!
You do the following steps:
1. segmentation (subtract background, for example via a histogram threshold)
2. create binary image
3. Region labelling (gives you each individual fish)
4. Integrated horizontal line profile tells you where the mouth starts, where the tail starts and where the tail ends.
All procedures are very well described in the book
Digital Image Processing: An Algorithmic Introduction using Java Hardcover – April 6, 2011
by Wilhelm Burger[
http://www.amazon.com/Wilhelm-Burger/e/B001JP8G9W/ref=dp_byline_cont_book_1] (Author), Mark J. Burge[
http://www.amazon.com/Mark-J.-Burge/e/B005363058/ref=dp_byline_cont_book_2] (Author)
http://www.amazon.com/Digital-Image-Processing-Algorithmic-Introduction/dp/1846283795/ref=sr_1_1?ie=UTF8&qid=1429079791&sr=8-1&keywords=%22Digital+Image+Processing%22+Burger[
http://www.amazon.com/Digital-Image-Processing-Algorithmic-Introduction/dp/1846283795/ref=sr_1_1?ie=UTF8&qid=1429079791&sr=8-1&keywords=%22Digital+Image+Processing%22+Burger]
They use ImageJ for their examples!
Angelika
Gesendet: Mittwoch, 15. April 2015 um 06:07 Uhr
Von: Hiero <
[hidden email]>
An:
[hidden email],
[hidden email]
Betreff: Neural Network (or something else) for fish photos
Hello guys,
I was wondering if anyone had this trouble, I have several images like this
above (pic attached), I was thinking how to quickly get all the standard
lenght (fish mouth to base of caudal fin) and total lenght (fish mouth to
end of caudal fin) of my fishes. I saw some papers about training neural
network that could do this, but I´m new in this field. Anyone could help
me?!
I just need a way to do the lenght measures. The scale convertion I can do
manualy.
Thanks in Advance
<
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http://imagej.1557.x6.nabble.com/file/n5012474/Caixa_final01.jpg]>
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