[Insight-users] How to calculate distance between 2 points in millimeter

[Cary lorey]

Hello,

I am trying to calculate the distance between 2 points on an image, I
modified the code TestDistanceWidget according to my needs, but the problem
when I measure the distance between the 2 points, the value is high, then I
want a millimeter distance.

Please please can you help me?

thank you in advance.
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