This tab allows for removing the border of a class patch (erosion), defining the class values to be eroded and the number of pixels from the border. It is useful for classification refinement.
Tip
Information about APIs of this tool in Remotior Sensus at this link .
| Tool symbol and name | Description |
|---|---|
:guilabel:`Select input band set (of classifications)`  |
select the input :ref:`band_set_tab` |
:guilabel:`Class values`  |
set the class values to be eroded; class values must be separated by
, and - can be used to define a range of values (e.g.
1, 3-5, 8 will select classes 1, 3, 4, 5, 8); if the text is red
then the expression contains errors |
| :guilabel:`Size in pixels` |
number of pixels to be eroded from the border |
 :guilabel:`Circular`  |
if checked, the erosion will be circular, similar to a buffer |
| :guilabel:`Output name` | set the name prefix for output files |
| :guilabel:`Virtual output` |
if checked, the output is created as virtual raster composed of as
many .tif files as the number of CPU threads defined in
:ref:`system_processing` |
:guilabel:`Script`  |
add this function to the :ref:`script_tab` |
:guilabel:`RUN`  |
run this function |