patchify_SAR_matrix: patchify_SAR_matrix

In frycast/rsar: What the Package Does (One Line, Title Case)

Description

Reduce the resolution of images (columns) in a SAR_matrix object m, by aggregating all values inside d \times d patches using the aggregation function fun.

Usage

patchify_SAR_matrix(m, d, fun = mean)

Arguments

m	An SAR_matrix object, such as that output by load_SAR_matrix.
d	The dimension of patches.
fun	The aggregation function. Default is mean.

Value

A SAR_matrix of reduced dimension, with appropriately adjusted raster attributes.

Examples

filename <- system.file(
  "extdata", "MG_CC_sub_norm_testclip.tif", package="rsar")
m <- load_SAR_matrix(filename)
dim(m)
mp <- patchify_SAR_matrix(m,4)
head(mp)
dim(mp)
bp <- matrix_to_brick(mp)
raster::plot(bp)

frycast/rsar documentation built on Sept. 4, 2020, 3:52 a.m.