pktools  2.6.7
Processing Kernel for geospatial data

program to calculate statistics in temporal or spectral profile


Usage: pkstatprofile -i input -o output [-f function]*

Options: [-nodata value]

Advanced options: check table


This utility calculates statistics for a temporal (time series) or spectral profile

function description
mean calculate mean in window
median perform a median filter in spatial (dx, dy) or spectral/temporal (dz) domain
var calculate variance in window
stdev calculate standard deviation in window
min calculate minimum in window
max calculate maximum in window
sum calculate sum in window
mode calculate mode of all values
ismin 1 if value is minimum, else 0
ismax 1 if value is maximum, else 0
per calculate percentile in time series (provide percentage value as argument)
prop calculate proportion
nvalid report number of valid observations

Example: Calculate min and max NDVI in time series

pkstatprofile -i modis_ndvi_2010.tif -o modis_stats_2010.tif -f min -f max