Welcome to the Harris Geospatial documentation center. Here you will find reference guides and help documents.


  >  Docs Center  >  ENVI API  >  Processing  >  ENVIPCPanSharpeningTask

ENVIPCPanSharpeningTask

ENVIPCPanSharpeningTask

This task performs Principal Components Pan Sharpening using a low-resolution raster and a high-resolution panchromatic raster.

Example


; Start the application
e = ENVI()
 
; Open an input file
msi_file = Filepath('qb_boulder_msi', Subdir=['data'], $
  Root_Dir=e.Root_Dir)
msi_raster = e.OpenRaster(msi_file)
pan_file = Filepath('qb_boulder_pan', Subdir=['data'], $
  Root_Dir=e.Root_Dir)
pan_raster = e.OpenRaster(pan_file)
 
; Get the task from the catalog of ENVITasks
Task = ENVITask('PCPanSharpening')
 
; Define inputs
Task.INPUT_LOW_RESOLUTION_RASTER = msi_raster
Task.INPUT_HIGH_RESOLUTION_RASTER = pan_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('PCPanSharpening')

Input properties (Set, Get): INPUT_HIGH_RESOLUTION_RASTER, INPUT_LOW_RESOLUTION_RASTER, OUTPUT_RASTER_URI, RESAMPLING

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:

AddParameter

Execute

Parameter

ParameterNames

RemoveParameter

Properties


This task inherits the following properties from ENVITask:

COMMUTE_ON_DOWNSAMPLE

COMMUTE_ON_SUBSET

DESCRIPTION

DISPLAY_NAME

NAME

REVISION

TAGS

This task also contains the following properties:

INPUT_HIGH_RESOLUTION_RASTER (required)

Specify a high-resolution panchromatic raster.

INPUT_LOW_RESOLUTION_RASTER (required)

Specify a low-resolution raster.

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.

RESAMPLING (required)

Specify the resampling method.

  • Nearest Neighbor: Uses the nearest pixel without any interpolation.
  • Bilinear (default): Performs a linear interpolation using four pixels to resample.
  • Cubic Convolution: Uses 16 pixels to approximate the sinc function using cubic polynomials to resample the image.

Version History


ENVI 5.2

Introduced

API Version


3.3

See Also


ENVITask, ENVITask::Parameter, ENVISubsetRaster



© 2019 Harris Geospatial Solutions, Inc. |  Legal
My Account    |    Store    |    Contact Us