.TH imagery_graphical 1grass "" "GRASS 7.8.5" "GRASS GIS User's Manual"
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.SH Graphical index of GRASS GIS modules
Go to imagery introduction | topics
.PP
.SS Imagery modules:
.RS 4n
.IP \(bu 4n
\fCi.albedo\fR \fCComputes broad band albedo from surface reflectance.\fR
.IP \(bu 4n
\fCi.aster.toar\fR \fCCalculates Top of Atmosphere Radiance/Reflectance/Brightness Temperature from ASTER DN.\fR
.IP \(bu 4n
\fCi.atcorr\fR \fCPerforms atmospheric correction using the 6S algorithm.
.br
\fR
.IP \(bu 4n
\fCi.biomass\fR \fCComputes biomass growth, precursor of crop yield calculation.\fR
.IP \(bu 4n
\fCi.cca\fR \fCCanonical components analysis (CCA) program for image processing.\fR
.IP \(bu 4n
\fCi.cluster\fR \fCGenerates spectral signatures for land cover types in an image using a clustering algorithm.
.br
\fR
.IP \(bu 4n
\fCi.colors.enhance\fR \fCPerforms auto\-balancing of colors for RGB images.\fR
.IP \(bu 4n
\fCi.eb.eta\fR \fCActual evapotranspiration for diurnal period (Bastiaanssen, 1995).\fR
.IP \(bu 4n
\fCi.eb.evapfr\fR \fCComputes evaporative fraction and root zone soil moisture.\fR
.IP \(bu 4n
\fCi.eb.hsebal01\fR \fCComputes sensible heat flux iteration SEBAL 01.\fR
.IP \(bu 4n
\fCi.eb.netrad\fR \fCNet radiation approximation (Bastiaanssen, 1995).\fR
.IP \(bu 4n
\fCi.eb.soilheatflux\fR \fCSoil heat flux approximation (Bastiaanssen, 1995).\fR
.IP \(bu 4n
\fCi.emissivity\fR \fCComputes emissivity from NDVI, generic method for sparse land.\fR
.IP \(bu 4n
\fCi.evapo.mh\fR \fCComputes evapotranspiration calculation modified or original Hargreaves formulation, 2001.\fR
.IP \(bu 4n
\fCi.evapo.pm\fR \fCComputes potential evapotranspiration calculation with hourly Penman\-Monteith.\fR
.IP \(bu 4n
\fCi.evapo.pt\fR \fCComputes evapotranspiration calculation Priestley and Taylor formulation, 1972.\fR
.IP \(bu 4n
\fCi.evapo.time\fR \fCComputes temporal integration of satellite ET actual (ETa) following the daily ET reference (ETo) from meteorological station(s).\fR
.IP \(bu 4n
\fCi.fft\fR \fCFast Fourier Transform (FFT) for image processing.\fR
.IP \(bu 4n
\fCi.gensig\fR \fCGenerates statistics for i.maxlik from raster map.\fR
.IP \(bu 4n
\fCi.gensigset\fR \fCGenerates statistics for i.smap from raster map.\fR
.IP \(bu 4n
\fCi.group\fR \fCCreates, edits, and lists groups of imagery data.\fR
.IP \(bu 4n
\fCi.his.rgb\fR \fCTransforms raster maps from HIS (Hue\-Intensity\-Saturation) color space to RGB (Red\-Green\-Blue) color space.\fR
.IP \(bu 4n
\fCi.ifft\fR \fCInverse Fast Fourier Transform (IFFT) for image processing.\fR
.IP \(bu 4n
\fCi.image.mosaic\fR \fCMosaics several images and extends colormap.\fR
.IP \(bu 4n
\fCi.in.spotvgt\fR \fCImports SPOT VGT NDVI data into a raster map.\fR
.IP \(bu 4n
\fCi.landsat.acca\fR \fCPerforms Landsat TM/ETM+ Automatic Cloud Cover Assessment (ACCA).\fR
.IP \(bu 4n
\fCi.landsat.toar\fR \fCCalculates top\-of\-atmosphere radiance or reflectance and temperature for Landsat MSS/TM/ETM+/OLI\fR
.IP \(bu 4n
\fCi.maxlik\fR \fCClassifies the cell spectral reflectances in imagery data.
.br
\fR
.IP \(bu 4n
\fCi.modis.qc\fR \fCExtracts quality control parameters from MODIS QC layers.\fR
.IP \(bu 4n
\fCi.oif\fR \fCCalculates Optimum\-Index\-Factor table for spectral bands\fR
.IP \(bu 4n
\fCi.ortho.camera\fR \fCSelect and modify the imagery group camera reference file.\fR
.IP \(bu 4n
\fCi.ortho.elev\fR \fCSelect or modify the target elevation model.\fR
.IP \(bu 4n
\fCi.ortho.init\fR \fCInteractively creates or modifies entries in a camera initial exposure station file for imagery group referenced by a sub\-block.\fR
.IP \(bu 4n
\fCi.ortho.photo\fR \fCMenu driver for the photo imagery programs.\fR
.IP \(bu 4n
\fCi.ortho.rectify\fR \fCOrthorectifies an image by using the image to photo coordinate transformation matrix.\fR
.IP \(bu 4n
\fCi.ortho.target\fR \fCSelect or modify the imagery group target.\fR
.IP \(bu 4n
\fCi.ortho.transform\fR \fCComputes a coordinate transformation based on the control points.\fR
.IP \(bu 4n
\fCi.pansharpen\fR \fCImage fusion algorithms to sharpen multispectral with high\-res panchromatic channels\fR
.IP \(bu 4n
\fCi.pca\fR \fCPrincipal components analysis (PCA) for image processing.\fR
.IP \(bu 4n
\fCi.rectify\fR \fCRectifies an image by computing a coordinate transformation for each pixel in the image based on the control points.\fR
.IP \(bu 4n
\fCi.rgb.his\fR \fCTransforms raster maps from RGB (Red\-Green\-Blue) color space to HIS (Hue\-Intensity\-Saturation) color space.\fR
.IP \(bu 4n
\fCi.segment\fR \fCIdentifies segments (objects) from imagery data.\fR
.IP \(bu 4n
\fCi.smap\fR \fCPerforms contextual image classification using sequential maximum a posteriori (SMAP) estimation.\fR
.IP \(bu 4n
\fCi.spectral\fR \fCDisplays spectral response at user specified locations in group or images.\fR
.IP \(bu 4n
\fCi.target\fR \fCTargets an imagery group to a GRASS location and mapset.\fR
.IP \(bu 4n
\fCi.tasscap\fR \fCPerforms Tasseled Cap (Kauth Thomas) transformation.\fR
.IP \(bu 4n
\fCi.topo.corr\fR \fCComputes topographic correction of reflectance.\fR
.IP \(bu 4n
\fCi.vi\fR \fCCalculates different types of vegetation indices.
.br
\fR
.IP \(bu 4n
\fCi.zc\fR \fCZero\-crossing \(dqedge detection\(dq raster function for image processing.\fR
.RE
.PP
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.PP
© 2003\-2020
GRASS Development Team,
GRASS GIS 7.8.5 Reference Manual