Calculate Surface/Image Texture Indexes

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Documentation for package ‘SurfRough’ version 0.0.1.2

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anisoDir Calculate the direction of maximum continuity considering 4 directions
anisoDirL Calculate the direction of maximum continuity considering 4 directions
anisoR Calculate the index of anisotropy considering the spatial variability along 4 directions
anisoRL Calculate the index of anisotropy considering the spatial variability along 4 directions
CalcMeans Calculate the mean of absolute values raised to an exponent found in a search window
CalcMedians Calculate the median of absolute values found in a search window for each raster in a list
circularDispersionGV Compute circular variance of aspect (i.e. of the gradient vector)
circularDispersionNV Compute circular variance of normal vectors to surface
circularEigenNV Compute circular variance of normal vectors to surface
iqrST iqrST: interquartile range in a moving window
k05ck2 basic kernels
k1c basic kernels
k1ck2 basic kernels
k1ck4 basic kernels
k2c basic kernels
k2ck2 basic kernels
k4c basic kernels
k6c basic kernels
k8c basic kernels
KernelCircular Build a circular moving window
KernelRectangular Build a rectangular kernel of size X x Y
Madscan Calculate MAD basic indices
MadscanL Calculate MAD basic indices (version for large files)
Meanscan Calculate less robust geostatistical indices (mean of absolute differences raised to an exponent)
RRI RRI: Radial Roughness index
RRI.numeric RRI: Radial Roughness index
RRI.SpatRaster RRI: Radial Roughness index
RRIcore RRIcore: RRI using only the four inner second order directional differences of the RRI kernel
RRIcore.numeric RRIcore: RRI using only the four inner second order directional differences of the RRI kernel
RRIcore.SpatRaster RRIcore: RRI using only the four inner second order directional differences of the RRI kernel
RRIK3 RRIK3: Radial Roughness index with differences of order 3
RRIK3.numeric RRIK3: Radial Roughness index with differences of order 3
RRIK3.SpatRaster RRIK3: Radial Roughness index with differences of order 3
RRIk4 RRIk4: Radial Roughness index with fourth order differences
RRIk4.numeric RRIk4: Radial Roughness index with fourth order differences
RRIk4.SpatRaster RRIk4: Radial Roughness index with fourth order differences
RRIMax RRIMax: Maximum Radial Roughness index
RRIMax.numeric RRIMax: Maximum Radial Roughness index
RRIMax.SpatRaster RRIMax: Maximum Radial Roughness index
RRIMin RRIMin: Minimum Radial Roughness index
RRIMin.numeric RRIMin: Minimum Radial Roughness index
RRIMin.SpatRaster RRIMin: Minimum Radial Roughness index
stdST stdST: standard deviation in a moving window
TRIbi TRIbi: TRI with bilinear interpolation along diagonals
TRIbi.numeric TRIbi: TRI with bilinear interpolation along diagonals
TRIbi.SpatRaster TRIbi: TRI with bilinear interpolation along diagonals
Trik2 Improved TRI (with differences of order 2), reducing/removing slope dependence (for testing purposes)
Trik2.numeric Improved TRI (with differences of order 2), reducing/removing slope dependence (for testing purposes)
Trik2.SpatRaster Improved TRI (with differences of order 2), reducing/removing slope dependence (for testing purposes).