3.4.5.5. Sieve
This tab allows for the replacement of isolated pixel values with the value of the largest neighbour patch. It is useful for removing small patches from a classification.
It is possible to chose 4 pixel connection
(in a 3x3 window, diagonal
pixels are not considered connected) or 8 pixel connection
(in a 3x3
window, diagonal pixels are considered connected).
Astuce
Information about APIs of this tool in Remotior Sensus at this link .
3.4.5.5.1. Sieve
Tool symbol and name |
Description |
---|---|
select the input Band set |
|
size of threshold in number of pixels |
|
select between 4 pixel connection or 8 pixel connection |
|
Output name |
set the name prefix for output files |
if checked, the output is created as virtual raster composed of as
many |
|
add this function to the Script |
|
run this function |