You have to that via scripting for now.
- You want to access the value of the spot feature
RADIUS. Something in the line of (pseudocode):
for spot in spots:
radius = spot.getFeature('RADIUS')
spot.putFeature('RADIUS', 0.85 * radius)
- Then you need to trigger a recalculation of all the spot features.
- In the GUI you do this via the action that has this name.
- In a script with the
trackmate.computeSpotFeatures( True )