Extract sigma0 to numpy

Microwave Toolbox
#1

Hello,

I need help. I do some preprocessing on a GRDH image using SNAP desktop. I want to apply my own speckle denoising solution, I have a script in python to do that (on images as numpy array).
My question is, how can I export a sigma0 VV and VH to a numpy array from SNAP desktop? I tried few things (as geotiffs), but couldn’t make it work, I’m probably missing something basic, but cannot figure it out.

Thank you!

#2

You can directly read the img file of the BEAM DIMAP format in python using rasterio: Reading Datasets — rasterio documentation
No need to export the data beforehand. Please also see here: https://senbox.atlassian.net/wiki/spaces/SNAP/pages/1898053693/SNAP+FAQs#I-want-to-use-a-product-processed-in-SNAP-in-another-software