ssim: Calculate SSIM from two rasters
In juoe/spatialtoolbox: Collection of functions for doing spatial stuff.

adopted from package 'spatialcompare'

1 2	ssim(img1, img2, w, gauss_filter = TRUE, edge = FALSE, ks = c(0.01, 0.03), global_values = FALSE)

`img1`	is a `raster` object to compare
`img2`	is a `raster` object to compare
`w`	is the width of the neighbourhood in number of pixels out from centre cell
`gauss_filter`	is a binary flag for whether a Gaussian filter should be applied as a smoothing function
`edge`	is a binary flag for whether a torroidal edge correction should be applied
`ks`	is a vector of length 2 which contains values for constants in the SSIM formula. If ignored default values will be used.
`global_values`	a binary flag whether overall index values should be returned or else raster stack with cell-by-cell values

A list of length 4 or a raster stack with 4 bands. List objects / layer contain the composite index, luminance, contrast, and structure components respectively.

juoe/spatialtoolbox documentation built on May 7, 2019, 9:37 a.m.