DecorrelationStretch Task
This task removes the high correlation commonly found in multispectral data sets to produce a more colorful color composite 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('DecorrelationStretch')
; 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('DecorrelationStretch')
Input properties (Set, Get): INPUT_RASTER, OUTPUT_RASTER_URI, USE_BANDS
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:
This task also contains the following properties:
INPUT_RASTER (required)
Specify the raster for decorrelation.
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.
USE_BANDS (optional)
Specify an array of bands for decorrelation. Enter 3-element array. Use 0 for Band 1.
Version History
|
ENVI 5.6.2 |
Introduced |
API Version
4.2