EmissivityFromAlphaResiduals Task
This task produces alpha residual spectra that approximates the shape of emissivity spectra from thermal infrared radiance data.
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('EmissivityFromAlphaResidual')
; 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('EmissivityFromAlphaResidual')
Input properties (Set, Get): DATA_SCALE, INPUT_RASTER, OUTPUT_RASTER_URI
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:
DATA_SCALE (optional)
Specify the scale factor applied to the data, prior to calculating thermal corrections. This converts the input data to W/m2 *sr*um. Valid values are:
-
1.0
(default) -
0.001
INPUT_RASTER (required)
Specify an input raster to process.
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 to export the associated OUTPUT_RASTER.
- If you set this property to an asterisk symbol (*), the output raster will be virtual and not written to disk.
- If you do not specify this property, or set it to an exclamation symbol (!), a temporary file will be created.
Version History
ENVI 5.7 |
Introduced |
API Version
4.2
See Also
ENVITask, EmissivityFromNormalization Task, EmissivityFromReferenceChannel Task, ThermalAtmosphericCorrection Task