ROI mean grey value, excluding particles

Previous Topic Next Topic
 
classic Classic list List threaded Threaded
1 message Options
Reply | Threaded
Open this post in threaded view
|

ROI mean grey value, excluding particles

olivier
Hello,

I have a stack of ultrasound images with one distinct ROI in each image (saved in the ROI manager). These ROIs contain white particles, which I can easily threshold and analyse using "analyse particles". I could also measure the MGV of each ROIs via the ROI manager.

Now, I would like to measure the MGV of the same ROIs, excluding those particles... I have tried using an addtional (thresholded) stack and the "redirect" function in the "set measurements" window but I did not succeed. I guess I would need a macro for it but I can't figure out the necessary steps.

Can someone help?