smooth_mask: Buffer clound masks
In pobsteta/theia2r: An R toolbox to find, download and preprocess Sentinel-2 data

Description Usage Arguments Value Note Author(s)

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.

1 2	smooth_mask(inmask, binpaths, tmpdir = tempdir(), radius = 250, buffer = 250, namask = NULL)

`inmask`	The path of the input 0-1 mask (where 0 represents the area to be masked, 1 the cleen surface).
`binpaths`	list of paths of binaries.
`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 `inmask`, typically metres) to be used as radius for the smoothing (the higher it is, the more smooth the output mask will result).
`buffer`	(optional) Numerical (positive or negative): the size of the buffer (in the unit of `inmask`, typically metres) to be applied to the masked area after smoothing it (positive to enlarge, negative to reduce).
`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 presente.