This task creates a new raster that has been transformed from a red/green/blue (RGB) to hue/saturation/intensity color space.
The virtual raster associated with this task is ENVIRGBToHSIRaster.
Example
e = ENVI()
File = Filepath('qb_boulder_msi', Subdir=['data'], $
Root_Dir=e.Root_Dir)
Raster = e.OpenRaster(File)
Subset = ENVISubsetRaster(Raster, BANDS=[2,1,0])
Task = ENVITask('RGBtoHSIRaster')
Task.INPUT_RASTER = Subset
Task.Execute
DataColl = e.Data
DataColl.Add, Task.OUTPUT_RASTER
View = e.GetView()
Layer = View.CreateLayer(Task.OUTPUT_RASTER)
Syntax
Result = ENVITask('RGBtoHSIRaster')
Input parameters (Set, Get): INPUT_RASTER, OUTPUT_RASTER_URI
Output parameters (Get only): OUTPUT_RASTER
Parameters marked as "Set" are those that you can set to specific values. You can also retrieve their current values any time. Parameters marked as "Get" are those whose values you can retrieve but not set.
Input Parameters
INPUT_RASTER (required)
Specify the input ENVIRaster. It must have three bands in the following order: Red, Green, and Blue. If your original raster has more than three bands, or if it has red/green/blue bands that are not in the correct order, use ENVISubsetRaster to create a spectral subset for input to ENVIRGBToHSIRaster. Use the BANDS parameter to define a three-band subset, using zero-based band numbers.
OUTPUT_RASTER_URI (optional)
Specify a string with the fully qualified filename and path to export the associated OUTPUT_RASTER.
- If you set this parameter to an asterisk symbol (*), the output raster will be virtual and not written to disk.
- If you do not specify this parameter, or set it to an exclamation symbol (!), a temporary file will be created.
- If you set it to the hash symbol (#), ENVI creates a file in the temporary directory, but this file will not be deleted when ENVI closes.
Output Parameters
OUTPUT_RASTER
This is a reference to the output raster of filetype ENVI.
Methods
Execute
Parameter
ParameterNames
Properties
DESCRIPTION
DISPLAY_NAME
NAME
REVISION
TAGS
Version History
ENVI 5.3. 2 |
Introduced |
ENVI 5.5 |
OUTPUT_RASTER_URI now supports '*', which allows OUTPUT_RASTER to be virtual output.
|
See Also
ENVITask, ENVIRGBToHSIRaster, Masking Support in ENVITasks