Class membership after supervised classification

OTB Usage
1

Hi,

I use the image classifier (otbcli_ImageClassifier). Pixel classification works well but I wonder if there is a way to export the class membership of each pixel?

Many thanks,

Sylvain

2

Hello,

sorry but I don’t understand what you mean by “exporting the class membership of each pixel”, can you explain what you are trying to do ?

Cédric

3

Hello,

Sorry for the unclear explanation.
During classification, each pixel is classified into a category with a certain degree of confidence for each category. I would like to extract these confidence percentages for each pixel.

Thanks,

Sylvain

4

Hello,

You can output “confidence values” using the -confmap parameter, how this confidence is defined depends of the machine learning algorithm used, for example for K nearest neighbors it is the number of neighbors with the same label ; see the associated documentation.

Cédric

5

Hello,
Thank you very much for the answer, I hadn’t noticed this feature yet.

Sylvain