# Perimeter definitions

I would like know which is the difference between the Perimeter bounding pixel and the Perimeter bounding polygon.

The 1st is based on a Daisy chain perimeter pixel calculation, what about the 2nd?

How the Perimeter bounding polygon is calculated?

It is often different to the Perimeter bounding pixel value.

Thank you in advance for the information you will provide.

ciao

Maurizio

## Answers

Maurizio --

You have probably already seen that there is a "definition" that appears when the mouse is hovered over a MEASUREMENT.

If you have not seen this, the "definitions" for the PERIMETER MEASUREMENTS are shown below.

I hope this information is helpful.

-- Matt

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