How to Measure Diameters

The Circle function allows you to measure the diameter of a circle overlaying the image. Diameter measurements are applied to the current slice, as well as one slice before and after.
Step | ||
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1. | ![]() | Select Circle. |
2. | Select a point in the image to create a circle. The diameter of the circle is calculated and displayed. | |
3. | Reposition the circle as needed by dragging the center. Resize the circle by selecting and dragging the edges. |