Number Grey Levels

Hi all,

I am using Feature Calculator (beta) node to extract Haralick texture features. Could someone tell me what defines the Number Grey Levels. I am not sure what value i have to choose. By default is set to 32.

Thank you

Hi @s.leandrou,
the documentation says the following about that parameter:

“The number of grey values determines the size of the co-occurence matrix on which the Haralick features are calculated.”

you can read more about the Haralick features, including an explanation of the co-occurence matrix here: http://murphylab.web.cmu.edu/publications/boland/boland_node26.html
best,
Gabriel