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If I understood you, Eduardo right, you need a image processing software
to detect the crown of single trees in your infrared image. <br>
Well, if Grass 5.7 can relly do this, please let me know, because I doubt,
that there is a free image processing system to delineate tree crowns ....
<br>
e.cognition is a commercial software package that has been developed to classify
images using object and knowledge based algorithms. There is a derivate
of it called forester, co-developed by the Forstry Commision in the UK,
but the standard version of e.cognition and the forester are too expensive
(unfortunately more than some 20K Euros .... but I wouldn´t mention this
commercial software here, if the idea behind it wouldn´t be really good
and convincing ...) <br>
Nevertheless e.cognition is offering a trial version (I think it is limited
to a certain size of the files to be processed), and maybe it is good enough
to help you with your problem. <br>
<a class="moz-txt-link-freetext"
href="http://www.definiens-imaging.com/down/trial.htm">http://www.definiens-imaging.com/down/trial.htm</a>
<br>
<br>
Markus<br>
<br>
<br>
Paolo Cavallini schrieb:<br>
<blockquote type="cite"
cite="mid200409300723.51244.cavallini@faunalia.it">
<pre wrap="">-----BEGIN PGP SIGNED MESSAGE-----
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grass 5.7
pc
At 21:07, mercoledì 29 settembre 2004, Eduardo Patto Kanegae has probably
written:
</pre>
<blockquote type="cite">
<pre wrap="">Hi all,
I need to do some tests using high resolution aero-infrared photographies
to count the number of trees for a given eucalyptus forest area.
The hard thing is how to count trees when they are not so young? I mean,
there are some case where 2 or 3 trees sounds like 1 only tree for various
classification algorithms...
Can anybody recommend me a free gis that could do that?
thanks in advance.
Eduardo Patto Kanegae
<a class="moz-txt-link-freetext" href="http://www.webmapit.com.br">http://www.webmapit.com.br</a>
UIN: 303747254
Treinamento em UMN MapServer -
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<pre wrap=""><!---->
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Paolo Cavallini
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