Questions tagged [otsu]

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1answer
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Applying Otsu thresholding method to raster in QGIS

How can I apply Otsu’s threshold method to a Raster in QGIS for reduction of a gray level image to a binary image?
0
votes
1answer
95 views

Mapping of small water bodies in desert environments

I am trying to map small surface water bodies in a desert. My issue is: water pixels don't cover full extent water bodies (see screenshot attached). What threshold values would I need so that water ...
1
vote
0answers
14 views

Choosing matching treshold for geometry matching

I have seen that some researches use Otsu's method in order to select a threshold for geometrical matching (One such article). They refer to an article that describes such usage but it is written in ...
2
votes
2answers
291 views

Trying to understand Otsu method code in GEE

I hope this question is OK, I know it's not usual kind of questions that are being posted here. I am trying to apply Otsu method on image in GEE. For that I have used the code that can be found here :...