Internal function (used by s2_mask) which smooths and buffers a 0-1 mask image in order to reduce the roughness of the mask obtained from SCL classification (which is done pixel by pixel). See details.
smooth_mask( inmask, tmpdir = tempdir(), radius = 250, buffer = 250, namask = NULL, bigtiff = FALSE )
inmask | The path of the input 0-1 mask (where 0 represents the area to be masked, 1 the clean surface). |
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tmpdir | (optional) Path where intermediate files (VRT) will be created. Default is a temporary directory. |
radius | (optional) Numerical (positive): the size (in the unit of
|
buffer | (optional) Numerical (positive or negative): the size of the
buffer (in the unit of |
namask | (optional) The path of an input 0-1 mask where 0 represents the area of the original file with NA values (which should not be smoothed / buffered). Default (NULL) means that no NA values are present. |
bigtiff | (optional) Logical: if TRUE, the creation of a BigTIFF is forced (default is FALSE). |
The path of the smoothed mask.
License: GPL 3.0
L. Ranghetti, M. Boschetti, F. Nutini, L. Busetto (2020). "sen2r": An R toolbox for automatically downloading and preprocessing Sentinel-2 satellite data. Computers & Geosciences, 139, 104473. DOI: 10.1016/j.cageo.2020.104473, URL: http://sen2r.ranghetti.info/.