QGIS algorithm - r.his

QGIS Algorithm provided by GRASS r.his (grass:r.his). Generates red, green and blue raster layers combining hue, intensity and saturation (HIS) values from user-specified input raster layers.

grass_r_his(
  hue = qgisprocess:::qgis_default_value(),
  intensity = qgisprocess:::qgis_default_value(),
  saturation = qgisprocess:::qgis_default_value(),
  bgcolor = qgisprocess:::qgis_default_value(),
  .c = qgisprocess:::qgis_default_value(),
  red = qgisprocess:::qgis_default_value(),
  green = qgisprocess:::qgis_default_value(),
  blue = qgisprocess:::qgis_default_value(),
  GRASS_REGION_PARAMETER = qgisprocess:::qgis_default_value(),
  GRASS_REGION_CELLSIZE_PARAMETER = qgisprocess:::qgis_default_value(),
  GRASS_RASTER_FORMAT_OPT = qgisprocess:::qgis_default_value(),
  GRASS_RASTER_FORMAT_META = qgisprocess:::qgis_default_value(),
  ...,
  .complete_output = .complete_output_option(),
  .quiet = .quiet_option(),
  .messages = .message_option()
)

Arguments

hue

raster - Hue. Path to a raster layer.

intensity

raster - Intensity. Path to a raster layer.

saturation

raster - Saturation. Path to a raster layer.

bgcolor

string - Color to use instead of NULL values. Either a standard color name, R:G:B triplet, or "none". String value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.

.c

boolean - Use colors from color tables for NULL values. 1 for true/yes. 0 for false/no. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression. Original algorithm parameter name: -c.

red

rasterDestination - Red. Path for new raster layer.

green

rasterDestination - Green. Path for new raster layer.

blue

rasterDestination - Blue. Path for new raster layer.

GRASS_REGION_PARAMETER

extent - GRASS GIS region extent. A comma delimited string of x min, x max, y min, y max. E.g. '4,10,101,105'. Path to a layer. The extent of the layer is used..

GRASS_REGION_CELLSIZE_PARAMETER

number - GRASS GIS region cellsize (leave 0 for default). A numeric value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.

GRASS_RASTER_FORMAT_OPT

string - Output Rasters format options (createopt). String value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.

GRASS_RASTER_FORMAT_META

string - Output Rasters format metadata options (metaopt). String value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.

...

further parameters passed to qgisprocess::qgis_run_algorithm()

.complete_output

logical specifying if complete out of qgisprocess::qgis_run_algorithm() should be used (TRUE) or first output (most likely the main) should read (FALSE). Default value is TRUE.

.quiet

logical specifying if parameter .quiet for qgisprocess::qgis_run_algorithm() Default value is TRUE.

.messages

logical specifying if messages from qgisprocess::qgis_run_algorithm() should be printed (TRUE) or not (FALSE). Default value is FALSE.

Details

Outputs description

• blue - outputRaster - Blue

• green - outputRaster - Green

• red - outputRaster - Red