StandardDeviationFilter

StandardDeviationFilter[data,r]

filters data by replacing every value by the standard deviations of the values in its range-r neighborhood.

StandardDeviationFilter[data,{r1,r2,}]

uses ri for filtering the ^(th)dimension in data.

Details

Examples

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Basic Examples  (3)

Moving standard deviation of a list:

Filter a TimeSeries:

Apply standard deviation filtering to a color image:

Scope  (11)

Data  (6)

Standard deviation filtering of a numeric vector:

Standard deviation filtering of a 2D array:

Filtering of a list of Quantity objects:

Filter an Audio signal:

Filtering a 2D grayscale image:

Standard deviation filtering of a 3D image:

Parameters  (5)

Specify one radius to be used in all directions:

Increasing the radius will result in larger image streaks and patches:

Standard deviation filtering just in the first direction:

Standard deviation filtering just in the second direction:

Standard deviation filtering of a 3D image in the vertical direction only:

Filtering of a 3D image in the horizontal planes only:

Applications  (2)

Find busy regions in a satellite image:

Use a standard deviation filter to find edges:

Introduced in 2008
 (7.0)
 |
Updated in 2012
 (9.0)
2015
 (10.2)
2016
 (11.0)