PixelStatistics Task

This task computes statistics for each pixel in a raster. It creates an image where each band represents a different statistic computed from an input image.

Example

; Start the application

e = ENVI()

; Open an input file

File = Filepath('qb_boulder_msi', Subdir=['data'], $

Root_Dir=e.Root_Dir)

Raster = e.OpenRaster(File)

; Get the task from the catalog of ENVITasks

Task = ENVITask('PixelStatistics')

; Define inputs

Task.INPUT_RASTER = Raster

; Run the task

Task.Execute

; Add the output to the Data Manager

e.Data.Add, Task.OUTPUT_RASTER

; Display the result

View = e.GetView()

Layer = View.CreateLayer(Task.OUTPUT_RASTER)

Syntax

Result = ENVITask('PixelStatistics')

Input properties (Set, Get): INPUT_RASTER, OUTPUT_RASTER_URI, PRODUCTS

Output properties (Get only): OUTPUT_RASTER

Properties marked as "Set" are those that you can set to specific values. You can also retrieve their current values any time. Properties marked as "Get" are those whose values you can retrieve but not set.

Methods

This task inherits the following methods from ENVITask:

Properties

This task inherits the following properties from ENVITask:

COMMUTE_ON_DOWNSAMPLE

INPUT_RASTER (required)

Specify the raster on which to compute pixel statistics.

OUTPUT_RASTER

This is a reference to the output raster of filetype ENVI.

OUTPUT_RASTER_URI (optional)

Specify a string with the fully qualified filename and path of the associated OUTPUT_RASTER. If you do not specify this property, or set it to an exclamation symbol (!), a temporary file will be created.

PRODUCTS (optional)

Specify a string array with the products to compute. The default behavior is to compute all available statistics. The following are the valid strings to use:

Min

Max

Mean

Standard Deviation

Mean Absolute Deviation

Variance

Skewness

Kurtosis

Sum

Sum of Squares

Version History

ENVI 5.5.2

Introduced

API Version

4.2