Efficiently estimate shape parameters of periodic time series
imagery with which a statistical seasonal trend analysis (STA) is subsequently performed.
STA output can be exported in conventional raster formats.
Methods to visualize STA output are also implemented as well as the calculation
of additional basic statistics. STA is based on (R. Eastman, F. Sangermano,
B. Ghimire, H. Zhu, H. Chen, N. Neeti, Y. Cai, E. Machado and S. Crema, 2009)