Statistics function

The Statistics function calculates focal statistics for each pixel of an image based on a defined focal neighborhood.

The inputs for this function are the following:

There are four types of focal statistical functions:

The Neighborhood Settings allow you to enter the number of pixel rows and columns to use as your neighborhood dimensions.

The table below provides examples of the types using two different neighborhood dimensions based on the following image:

Unfiltered image


3x3 Neighborhood

5x5 Neighborhood


Min 3x3

Min 5x5


Max 3x3

Max 5x5


Mean 3x3

Mean 5x5

Standard Deviation

Std 3x3

Std 5x5

Focal statistical functions

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