VegetationSuppression Task
This task removes the vegetation spectral signature from multispectral and hyperspectral imagery, using information from red and near-infrared bands.
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('VegetationSuppression')
; Define inputs
Task.INPUT_RASTER = Raster
; Run the task
Task.Execute
; Get the collection of data objects currently available in the Data Manager
DataColl = e.Data
; Add the output to the Data Manager
DataColl.Add, Task.OUTPUT_RASTER
; Display the result
View = e.GetView()
Layer = View.CreateLayer(Task.OUTPUT_RASTER)
Syntax
Result = ENVITask('VegetationSuppression')
Input properties (Set, Get): INPUT_RASTER, NIR_BAND, OUTPUT_RASTER_URI, RED_BAND
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 a raster on which to perform vegetation suppression.
NIR_BAND (optional)
Specify the band index to use for the NIR band when the image does not contain wavelength information. If the image contains wavelength information, ENVI returns the NIR band chosen for processing. If you supply this parameter, you must also supply RED_BAND.
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.
RED_BAND (optional)
Specify the band index to use for the red band when the image does not contain wavelength information. If the image contains wavelength information, ENVI returns the red band chosen for processing. If you supply this parameter, you must also supply NIR_BAND.
Version History
|
ENVI 5.2 |
Introduced |
API Version
4.2