Measure Intensity fraction of two object classes

I would like to know, whether (and how) it’s possible to measure the intensity fraction of two object classes.

I’ve identified objects (A). Then I used the ExpandOrShrinkObjects-Module to expand these objects by a certain number of pixels. I’ve masked the expanded objects by the inverted mask of objects A to get the ring objects B.
Now, more or less every object A should have a ring object B.
I would like to calculate the intesity ratio for all objects A = mean intensity A / mean intensity B

Can anybody help?

I’ve found the solution using the CalculateMath-Module

Good to hear you answered your own question! :smiley: