GLCM Range Value for the SAR texture analysis

Microwave Toolbox
#1

Although it’s said that most of Grey-Level Co-occurrence Matrix (GLCM) features range less than 1, I am wondering why SNAP produce the high values E.G., for Dissimilarity, entropy,…
Is that statistically wrong to report sth greater than 1?

Thanks

My settings are <img

GLCM Setting.jpg822×362 60.6 KB

Sentinel-1 SNAP toolbox image view does not export as Geotiff with spatial reference
#2

are you calculating it on the Amplitude, Sigma0 or a logarithmised product?

1 Like
#3

On Sigma0 (linear). I am fine with the high values, but statistically, dissimilarity feature ranges between 0 and 1. But SNAP gives sth up to 35 even sometimes.
I think that 32 bit level defined might cause this. But not yet sure about. Just looking for a way to justify the SNAP range.

Thanks