NAME
r.incora.change - Runs r.change.stats and does post processing for incora.KEYWORDS
raster, classification, change detectionSYNOPSIS
r.incora.change
r.incora.change --helpr.incora.change [-f] input=name [output_cd=name] [output_water=name] [output_bu=name] [output_forest=name] [output_lowveg=name] [output_bare=name] [output_agr=name] [minsize=string] [mode_winsize=integer] [gain_winsize=integer] [gain_thresh=string] [--overwrite] [--help] [--verbose] [--quiet] [--ui]
Flags:
- -f
- Filter change detection product using a mode filter of size window_size
- --overwrite
- Allow output files to overwrite existing files
- --help
- Print usage summary
- --verbose
- Verbose module output
- --quiet
- Quiet module output
- --ui
- Force launching GUI dialog
Parameters:
- input=name [required]
- Two input raster maps to calculate the change detection on
- It is assumed that the second raster is the later one
- output_cd=name
- Name of total output change detection map
- Name for output raster map
- output_water=name
- Name of output change detection map of water areas
- Name for output raster map
- output_bu=name
- Name of output change detection map of built-up areas
- Name for output raster map
- output_forest=name
- Name of output change detection map of forest areas
- Name for output raster map
- output_lowveg=name
- Name of output change detection map of low vegetation areas
- Name for output raster map
- output_bare=name
- Name of output change detection map of bare soil areas
- Name for output raster map
- output_agr=name
- Name of output change detection map of agriculture areas
- Name for output raster map
- minsize=string
- Minimum size of changed areas (in ha)
- Smaller areas will be deleted from the output raster(s)
- Default: 1.0
- mode_winsize=integer
- Size of mode filter if -f flag is set
- -f flag must be set
- Default: 3
- gain_winsize=integer
- Window size of information gain filter in r.change.info
- Default: 4
- gain_thresh=string
- Threshold for the information gain map
- All areas < gain_thresh are omitted from the output maps
- Default: 0.5
Table of contents
DESCRIPTION
r.incora.change runs a change detection based on two input maps and does post processing for incora. The nomenclature is optimized for the incora project. The -f flag can be used to to eliminate isolated pixels and edge effects from the change detection product using a mode filter of size window_size.EXAMPLE
r.incora.change -f input=incora_germany_2019,incora_germany_2020 output_cd=cd_19_20_total output_water=cd_19_20_water output_bu=cd_19_20_built_up output_forest=cd_19_20_forest output_lowveg=cd_19_20_lowvegetation output_bare=cd_19_20_bare_soil output_agr=cd_19_20_agriculture # Computes a change map between both classifications, as well as change maps for each class. # The resulting change maps will be labelled according to input raster category values, e.g. # 1002 Change from 20 to 10 # 1003 Change from 30 to 10 # ...
SEE ALSO
r.sample.category (addon), r.buffer (addon), r.mapcalcAUTHOR
Guido Riembauer, mundialis, GermanySOURCE CODE
Available at: r.incora.change source code (history)
Accessed: Monday Jul 27 12:29:32 2026
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