I have a mask of a irregular shaped tumor and I want to scale down this mask to a certain degree so that I can exclude the periphery and measure the core of the tumor. When I use the scale down feature of the mask there is one center point instead of multiple center points. This causes it to miss areas of the tumor that are irregular in shape.
An example is I have mask C but when I scale it down it does c missing the top portion of the actual image. What I want is C.
I hope this makes sense.