[Geo4All] Need help -- Unsupervised classification in QGIS of a non-georeferenced aerial photo?
adam steer
adam.d.steer at gmail.com
Sun Feb 24 11:58:25 PST 2019
Nice work Lene!
I'd still like to try an OBIA approach ( all in a Jupyter notebook) - it
may help students with some approaches to trickier classification tasks
later. It’s still more or less simple thresholding to say which type of
object is which, but also can use more information to help with the
decision. (years ago I tried some penguins on nests, this method would have
counted a lot of rocks as well as a lot of penguins - but OBIA also didn’t
work, since in RGB the response of a rock shadow is the same as a penguin,
and also about the same size )
Cheers
--
Dr. Adam Steer
http://spatialised.net
https://www.researchgate.net/profile/Adam_Steer
http://au.linkedin.com/in/adamsteer
http://orcid.org/0000-0003-0046-7236
+61 427 091 712
skype: adam.d.steer
tweet: @adamdsteer
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