QGIS Algorithm provided by GRASS i.segment (grass:i.segment). Identifies segments (objects) from imagery data.
grass_i_segment(
input = qgisprocess:::qgis_default_value(),
threshold = qgisprocess:::qgis_default_value(),
method = qgisprocess:::qgis_default_value(),
similarity = qgisprocess:::qgis_default_value(),
minsize = qgisprocess:::qgis_default_value(),
memory = qgisprocess:::qgis_default_value(),
iterations = qgisprocess:::qgis_default_value(),
seeds = qgisprocess:::qgis_default_value(),
bounds = qgisprocess:::qgis_default_value(),
.d = qgisprocess:::qgis_default_value(),
.w = qgisprocess:::qgis_default_value(),
output = qgisprocess:::qgis_default_value(),
goodness = 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()
)multilayer - Input rasters. .
number - Difference threshold between 0 and 1. 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.
enum of ("region_growing") - Segmentation method. Number of selected option, e.g. '1'. Comma separated list of options, e.g. '1,3'.
enum of ("euclidean", "manhattan") - Similarity calculation method. Number of selected option, e.g. '1'. Comma separated list of options, e.g. '1,3'.
number - Minimum number of cells in a segment. 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.
number - Amount of memory to use in MB. 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.
number - Maximum number of iterations. 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.
raster - Name for input raster map with starting seeds. Path to a raster layer.
raster - Name of input bounding/constraining raster map. Path to a raster layer.
boolean - Use 8 neighbors (3x3 neighborhood) instead of the default 4 neighbors for each pixel. 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: -d.
boolean - Weighted input, do not perform the default scaling of input raster maps. 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: -w.
rasterDestination - Segmented Raster. Path for new raster layer.
rasterDestination - Goodness Raster. Path for new raster layer.
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..
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.
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.
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()
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.
logical specifying if parameter .quiet for qgisprocess::qgis_run_algorithm() Default value is TRUE.
logical specifying if messages from qgisprocess::qgis_run_algorithm() should be printed (TRUE) or not (FALSE). Default value is FALSE.