AddOns/GRASS 7/imagery

i.destripe

i.destripe (src) destripes in a row-based Fourier smoothing way. Requires a near vertical striping for best effect.

Author: Yann Chemin

i.eb.h_sebal95

i.eb.h_sebal95 (src) Sensible heat flux modeling following Bastiaanssen (1995, 1998) method.

Author: Yann Chemin

i.edge

i.edge (src) is an edge detector based on the Canny algorithm ....

i.evapo.potrad

i.evapo.potrad (src) Potential evapotranspiration using astronomical equations (full radiative energy from sun is converted to ET)

Author: Yann Chemin

i.evapo.senay

i.evapo.senay (src) Senay (2001) used ET Penman-Montieth (1972, see i.evapo.pm) along with a LST based fraction for ET modeling, also referred as SSEB.

Author: Yann Chemin

i.evapo.zk

i.evapo.zk (src) Biome based Global Evapotranspiration modelling after Zhang and Kimball (2010?)

Author: Yann Chemin

i.flip

flipping N/S E/W a map, became r.flip (src) in GRASS Add-ons

Author: Yann Chemin

i.fusion.brovey

-> merged into i.pansharpen

i.gravity

i.gravity (src) calculates the Bouguer gravity anomaly (after Mussett and Khan).

Author: Yann Chemin

i.histo.match

i.histo.match (src) performs histogram matching on the given input images.

Authors: Laura Zampa (PERL version), rewritten and updated by Luca Delucchi, Italy

i.lmf

i.lmf (src) Local Maximum fitting, maximizes temporal/spectral information using Akaike Information Content, and overall smoothes the output in the spectral/temporal dimension.

Author: Yann Chemin

i.points.auto

....

i.rotate

i.rotate (src) calculates an arbitrary rotation of the image from the center of the computing window (not finished)

Author: Yann Chemin

i.segment.gsoc

• see GRASS GSoC 2012 Image Segmentation

--> improved version moved into GRASS 7 trunk as i.segment

i.spec.sam

i.spec.sam (src): Spectral Angle Mapping, depends upon libmeschach(-dev).

• In Ubuntu: 'sudo apt-get install libmeschach-dev' will do the job.

Authors: Markus Neteler (GRASS 5 version), updated to GRASS 7: Yann

i.spec.unmix

i.spec.unmix (src): Spectral unmixing

Authors: Markus Neteler (GRASS 5 version), updated to GRASS 7: Mohammed Rashad

i.theilsen

i.theilsen (src) robust spectral/temporal trend estimator after Theil-Sen work.

Author: Yann Chemin

i.vi.mpi

i.vi.mpi (src) is a learning module to study MPI C-extension distributed computing language.