IDRISI Modules A - Z

pick the little i to return to the index * * * in which menues to find the module

i	ALLOCATE Analysis/Distance Operators	Performs spatial allocation using either DISTANCE or COST surfaces.
i	ARCIDRIS File/Import-Export/Software-Specific Formats	Converts files to and from Arc/Info GENERATE/UNGEN format.
i	AREA Analysis/Database Query	Creates a new image by giving each output pixel the value of the area of the class to which the input pixel belonged. Output can also be produced as a table or an attribute values file in a range of measurement units.
i	ASSIGN Analysis/Database Query Data Entry	Creates an image from an attribute values file by assigning the data values contained in the attribute values file to the cells belonging to defined regions. ASSIGN can also be used to reclassify integer images.
i	ATLIDRIS File/Import-Export/Software-Specific Formats	Converts ATLAS BNA files to IDRISI vector format.
i	AUTOCORR Analysis/Statistics	Computes Moran+s -I+ first lag autocorrelation statistic for an image, along with confidence tests. Non-rectangular regions can be analyzed by defining a binary mask.
i	BATCH324 DOS version only	Converts groups of Version 3 data files to Version 4 format.
i	BAYES Analysis/Decision Support	evaluates Bayes' Theorem. Multiple evidence maps (such as that produced by PCLASS ) are permitted as long as they are conditionally independent. Prior probabilities may be input in map form (and thus, like the evidence maps, may vary continuously over space). The user is also able to specify the confidence in the decision rule, I. e., the belief that the evidence supportive of the hypothesis is truly reflected in the evidence at hand -- p(e\|e'). BAYES is an extension to what is sometimes called a Bayesian Weight of Evidence approach.
i	BBKIDRIS File/Import/US Government Data Formats	Converts National Survey Blue Book format (80 and 81 records) to IDRISI vector format.
i	BILIDRIS File/Import/General Conversion Tools	Converts generic band-interleaved by line images to IDRISI format.
i	BIPIDRIS File/Import/General Conversion Tools	Converts generic band-interleaved by pixel images to IDRISI format.
i	BMPIDRIS WINDOWS version only File/Import-Export/Desktop Publishing Formats	BMPIDRIS converts bitmaps from graphics packages which support the .bmp format into IDRISI for Windows images and vice versa. BMPIDRIS should be used as a companion to WMFIDRIS for the conversion of vector images.
i	CENTER Analysis/Statistics	Computes mean center (weighted or not) of a point distribution and standard radius (the two-dimensional equivalent of a standard deviation).
i	CLUSTER Analysis/Image Processing	Performs unsupervised classification.
i	COLOR DOS version only	Produces color output of raster images with integrated vector display on EGA, VGA and SuperVGA graphics systems. COLOR also provides interactive inquiry, on-screen digitizing, interactive zoom, vector file overlay, interactive palette selection and adjustment and interactive legend editing. With SuperVGA graphics adaptors, high resolution displays (up to 1024 ´ 768) of color composite images (256 color) can be produced.(in WINDOWS version: DISPLAY LAUNCHER)
i	COLOR85 DOS version only	A special version of COLOR for the 8514/A graphics adaptor capable of displaying color composite images (256 color) at high resolution (1024 ´ 768) (in WINDOWS version: DISPLAY LAUNCHER)
i	COLSPACE Analysis/Image Processing	Performs HLS/RGB color space transformations.
i	COMPOSIT Analysis/Image Processing	Produces color composite images.
i	CONCAT Reformat	Concatenates multiple images to produce a larger image.
i	CONFIG DOS version only	A hardware configuration utility.
i	CONTRACT Reformat	Reduces image resolution by pixel thinning or aggregation.
i	CONV3TO4 File/Import	Converts Version 3 data files to Version 4 format.
i	CONVERT Reformat	Converts between all of the image storage formats supported by IDRISI. Files may be converted to any combination of the byte, integer and real (floating point) data types and the ASCII, binary and packed (run-length encoded) file structures.
i	COPY WINDOWS version only	COPY provides the file management capability of copying IDRISI for Windows data files.
i	COST Analysis/Distance Operators	Generates a distance/proximity surface where distance is measured as the least cost distance in moving over a friction surface.
i	CRATIO Analysis/Statistics	Computes the compactness ratio of polygons given corresponding area and perimeter images.
i	CRLF File/Import/General Conversion Tools	Adds or removes carriage return and line feed symbols.
i	CROSSTAB Analysis/Database Query Analysis/Statistics Analysis/Change-Time Series	Performs image crosstabulation and crosscorrelation.
i	CTG File/Import/US Government Data Formats	Imports USGS CTG (Composite Theme Grid) data files into IDRISI.
i	DATABASE WORKSHOP WINDOWS version only Analysis/Database Query	DATABASE WORKSHOP provides IDRISI for Windows with an integrated relational database management system.
i	DBIDRIS DOS version only	Used to import dBASE files into IDRISI values files, and move IDRISI values files back into dBASE format.
i	DECOMP Analysis/Distance Operators	Decomposes a force vector (as a magnitude and direction image pair) into X and Y component images. Also takes X and Y component images and produces a force vector image pair.
i	DELETE WINDOWS version only	DELETE provides the file management capability of deleting IDRISI for Windows data files.
i	DEMIDRIS DEM in WINDOWS version File/Import/US Government Data Formats	Reads USGS 1:24,000 and 1:250,000 Digital Elevation Models.
i	DESCREF DOS version only (in WINDOWS version integrated in DESCRIBE)	Describes the contents of a reference system parameter file.
i	DESCRIBE	Describes the contents of any image, vector or values files.
i	DESTRIPE Analysis/Image Processing	Removes band striping due to variable detector output.
i	DISPERSE Analysis/Distance Operators	DISPERSE is a companion to VARCOST that calculates dispersion distances. The procedure is essentially the same as that of VARCOST except that the emphasis is on forces acting to disperse a body (e. g., a point-source contaminant spill) and the time taken to disperse it to a specified distance. DISPERSE is released as an experimental module in Version 4.1 and all users are invited to comment upon their experiences with this procedure and provide suggestions for modifications.
i	DISPLAY LAUNCHER WINDOWS version only	DISPLAY LAUNCHER is the module that allows you to open a new display window.
i	DISPLAY DOS version only	A universal display routine using ASCII characters.
i	DISTANCE Analysis/Distance Operators	Calculates the distance/proximity of each pixel to the nearest of a set of target pixels.
i	DLG File/Import/US Government Data Formats	Scans and extracts features from USGS DLG (Digital Line Graph) files into IDRISI vector format.
i	DOCUMENT	Creates a documentation file for a new imported data file, or revises the documentation files of an existing data file.
i	DUMP File/Import/General Conversion Tools	Displays byte-level contents of any file.
i	DXFIDRIS File/Import-Export/Desktop Publishing Formats	Reads and writes DXF format vector files.
i	EDIT Analysis/Database Query Data Entry	A simple ASCII text editor for use with creating a variety of IDRISI data files. With values files, EDIT creates and maintains proper documenta- tion files automatically.
i	EDITSIG Analysis/Image Processing	Edits signatures created with MAKESIG.
i	ENVIRON	Changes the prevailing IDRISI operating environment.
i	ERDIDRIS File/Import-Export/Software-Specific Formats	Converts files to and from ERDAS ".lan" and ".gis" format.
i	ERRMAT Analysis/Decision Support	Produces an error matrix analysis of categorical map data compared to ground truth information. Tabulates error of omission and commission, marginal and total errors and selected confidence intervals. Per Category Kappa Index of Agreement figures are also provided. This module is a substatial revision and replacement for CONFUSE.
i	EXPAND Reformat	Increases image resolution by pixel duplication.
i	EXTRACT Analysis/Database Query	Creates an attribute values file from an image by extracting a summary of data values found within defined regions. The summary (minimum, maximum, range, total, mean, or standard deviation) may also be output as a table.
i	FILTER Analysis/Context Operators Analysis/Image Processing	Convolves (strictly correlates) an image with a digital filter. Mean, median, mode, edge-enhancement, low-pass, high-pass and user-defined filters are accommodated.
i	FLIP File/Import/General Conversion Tools	Reverses the byte order of 2-byte integer files.
i	FUZZY Analysis/Decision Support	Evaluates the fuzzy set membership values (possibilities) of data cells based on any of three membership functions: sigmoidal, j-shaped and linear. Monotonically increasing, monotonically decreasing, symmetric and asymmetric variants are supported. Other Fuzzy Set operations such as CON (concentration), DIL (dilation), AND and OR are covered by the standard modules TRANSFOR and OVERLAY .
i	GRASSIDR File/Import-Export/Software-Specific Formats	Converts raster files between GRASS and IDRISI.
i	GROUP Analysis/Context Operators	Classifies pixels according to contiguous groups.
i	GSPIDRIS WINDOWS version only File/Import	GSPIDRIS extracts image data from SpotImage's SPOTView 1.5 and 4.1 format data volumes.
i	HISTO Analysis/Database Query Analysis/Statistics	Produces histograms of image file values. In addition to the graphic output, numeric output includes proportional and cumulative frequen- cies along with simple statistics.
i	HNTRLAND Analysis/Context Operators	Determines the supply areas dominated by, or the hinterlands of, point demand centers.
i	IDRISI IDRISIW in WINDOWS version	The main IDRISI menu system.
i	IMAGE DOS version only	Produces a grey-scale image (up to 32 levels) using a half-tone procedure on dot-matrix, ink-jet and laser printers.
i	INITIAL Data Entry	Initializes a new image with a constant value.
i	INTERCON Data Entry/Surface Interpolation	Interpolates a surface from a set of contours by linear interpolation.
i	INTERPOL Data Entry/Surface Interpolation	Interpolates a surface from point data using either a weighted-distance or potential surface model.
i	LANDSAT DOS version only	Facilitates the downloading of LANDSAT CCT-X data.
i	LINEGEN Reformat	Generalizes vector lines by point selection, low-pass filtering or tolerance band selection.
i	LINERAS Reformat/Raster-Vector Conversion	Line-to-Raster conversion.
i	LIST	Lists the names and titles of all image, vector and values files.(all files in WINDOWS version)
i	LISTPAL DOS version only (in WINDOWS version integrated in DESCRIBE)	Lists color palette files in the active data directory.
i	LISTREF DOS version only (in WINDOWS version integrated in DESCRIBE)	Lists reference system parameter files.
i	LISTSCR DOS version only (in WINDOWS version integrated in DESCRIBE)	Lists vector script files used with PLOT.
i	LISTSIG DOS version only (in WINDOWS version integrated in DESCRIBE)	Lists supervised classification signature files.
i	MAINT DOS version only (in WINDOWS version separated into COPY , RENAME and DELETE )	A file maintenance utility.
i	MAKESIG Analysis/Image Processing	Creates signature files for each informational class for which you have created training sites.
i	MAPIDRIS File/Import-Export/Software-Specific Formats	Converts to and from Map Analysis Package files (both mainframe and micro versions).
i	MAXLIKE Analysis/Image Processing	A Maximum Likelihood classifier.
i	MCE Analysis/Decision Support	Computes a Multi-Criteria Avaluation by means of a weighted linear combination of factors, subsequently masked by a set of constraints. Factor uncertainty information is propagated to the result to compute the uncertainty in the suitabilities derived.
i	MDCHOICE Analysis/Decision Support	MDCHOICE is a multi-dimensional choice procedure that produces an output map indicating, for each cell, which of a series of input maps has the highest value. In cases where the input maps represent suitabilities for different objectives, the procedure provides one alternative to the multi-objective decision problem (although the MOLA procedure is preferable in most instances). In these cases, input maps should be standardized either with STANDARD or by means of the histogram equalization procedure in STRETCH .
i	MINDIST Analysis/Image Processing	A Minimum Distance to Means classifier.
i	MOLA Analysis/Decision Support	An iterative Multi-Objective Land Allocation routine. Input maps are ranked suitability maps such as would be produced by ranking (using RANK ) the output from a multi-criteria evaluation (using MCE ). The procedure uses a decision heuristic to resolve conflicts and is suitable for use with massive data sets.
i	NDVICOMP Analysis/Change-Time Series	Composites images (eg. NDVI) using either a maximum value procedure or a quadratic mean.
i	NEWMOD DOS version only	NEWMOD is a program shell to aid in the creation of new modules. Two versions are supplied: one in PASCAL and the other in BASIC.
i	ODYIDRIS File/Import/Software-Specific Formats	Converts ODYSSEY vector files to IDRISI vector format.
i	ORTHO	Produces a 3-D orthographic perspective plot of surface data with optional draping of a second color image.
i	ORTHO85 DOS version only	A special version of ORTHO for the 8514/A graphics adaptor capable of displaying color composite images at high resolution.
i	OSUIDRIS File/Import-Export/Software-Specific Formats	Converts to and from OSU Map files.
i	OUTPOST File/Export/Desktop Publishing Formats	OUTPOST creates PostScript output from IDRISI vector files for export to desktop publishing software. OUTPOST also allows for the creation of PostScript groups based on a sorting of identifiers or of values in an attribute values file.
i	OVERLAY Analysis/Database Query Analysis/Mathematical Operators Analysis/Change-Time Series	Undertakes pixel-wise addition, subtraction, multiplication, division and exponentiation of paired images. Maximum, minimum, -normalized ratio+ and -cover+ are also supported. On binary images, logical AND and OR operations are supported by means of the multiply and maximum operation. Other boolean operations are supported through various binary image overlay combinations.
i	PAINT DOS version only	A color output module for the HP Paintjet, Paintjet XL, XL300 and the Deskjet 500C, 550C and 1200C.
i	PALETTE WORKSHOP WINDOWS version only	PALETTE WORKSHOP facilitates the creation and modification of color palettes.
i	PALIDRIS File/Import-Export/Software-Specific Formats	Converts palette files between IDRISI, ERDAS, ILWIS and IAX.
i	PARE File/Import/General Conversion Tools	Converts generic files with headers to IDRISI format.
i	PATHWAY Analysis/Distance Operators	Finds the shortest path between one or more specified points and a destination specified as the lowest point on a cost surface.
i	PATTERN Analysis/Statistics Analysis/Context Operators	Evaluates pattern measures of relative richness, diversity, dominance index, fragmentation index, NDC, CVN and BCM.
i	PCA Analysis/Image Processing	Principal Components Analysis (standardized and unstandardized).
i	PCLASS Analysis/Database Query Analysis/Decision Support	Evaluates the probability that pixels exceed or are exceeded by a specified threshold using the stated RMS error or the data set and a normal probability distribution error model.
i	PERIM Analysis/Database Query	Creates a new image by giving each output pixel the value of the perimeter of the class to which the input pixel belongs. Output can also be produced as a table or an attribute values file in a range of measurement units.
i	PIPED Analysis/Image Processing	A Parallelepiped classifier.
i	PLOT DOS version only	Produces vector plots on screen, HPGL plotters and selected printers.
i	POINTRAS Reformat/Raster-Vector Conversion	Point-to-Raster conversion.
i	POINTVEC Reformat/Raster-Vector Conversion	Produces a vector point file from raster image (a companion to POLYVEC ).
i	POLYRAS Reformat/Raster-Vector Conversion	Polygon-to-Raster conversion.
i	POLYVEC Reformat/Raster-Vector Conversion	Raster-to-Polygon conversion.
i	PROFILE Analysis/Database Query Analysis/Change-Time Series	Creates profiles over space or over time.
i	PROJECT Reformat	Undertakes conversions between reference systems for both vector and raster files. With raster images, a resampling is undertaken using either a nearest-neighbor or bilinear interpolation. Supported projections include the Mercator, Transverse Mercator, Lambert Conformal Conic and Plate Carree. By using reference system parameter files, a limitless number of reference system conversions can be undertaken. Full forward and backward transformations are accommodated using ellipsoidal formulas. PROJECT also incorporates the US National Geodetic Survey's NADCON procedure for converting between NAD27 AND NAD83 and the Molodensky transform equations for all other datums. Over 200 reference system parameter files are supplied with the module, including all US State Plane (SPC) systems for NAD27 and NAD83 and a complete set of UTM zones based on WGS84 for the northern and southern hemispheres. In addition, users can construct reference system parameter files for any system based on a supported projection.
i	QUADRAT Analysis/Statistics	Computes the density, variance and variance-mean ratio of quadrat cell counts.
i	QUERY Analysis/Database Query	Extracts pixels designated by an independent mask into a sequential file for subsequent statistical analysis.
i	RADIANCE Analysis/Image Processing	Converts raw values to calibrated radiances for LANDSAT images.
i	RANDOM Analysis/Statistics Analysis/Decision Support	Creates random images according to either a rectilinear or normal distribution. In the case of a normal distribution, the mean and standard deviation to be used may be specified.
i	RANK Analysis/Decision Support	Rank orders the cells in a raster image. Ties may optionally be resolved by using the rank order of a second image. Both primary and secondary ranks may be in ascending or descending order. The procedure is used extensively in optimization problems such as with RECLASS for single objective decisions and MOLA for mulit-objective decisions.
i	RASLNVEC	Produces plottable vector output from images.
i	RECLASS Analysis/Database Query	Reclassifies pixels by equal intervals or user-defined schemes. RECLASS is commonly used as a database query routine by reclassifying images into Boolean maps of areas meeting the specified conditions.
i	REGRESS Analysis/Statistics Analysis/Change-Time Series	Performs regression analysis on images or attribute values files.
i	RENAME	RENAME provides the file management capability of renaming IDRISI for Windows data files.
i	RESAMPLE Reformat	Determines the data values for a rectangular grid by interpolation of the values in a different (and possibly warped) grid. Linear, quadratic and cubic mappings between the grids are provided, along with nearest-neighbor and bi-linear interpolations. Vector files may also be trans- formed with this 'rubber sheet' procedure.
i	RESULTAN Analysis/Distance Operators	Computes the resultant force vector (as a magnitude and direction image pair) from two input force vector image pairs.
i	SAMPLE Analysis/Statistics Analysis/Decision Support	Creates systematic, random and stratified random point sampling schemes.
i	SCALAR Analysis/Mathematical Operators	Adds, subtracts, multiplies, divides and exponentiates pixels by a constant value.
i	SCATTER DOS version only; single program file, not in the menu!	Creates XY-scatterplots as images.
i	SIGCOMP Analysis/Image Processing	A signature comparison utility.
i	SPDIST Analysis/Distance Operators	A companion to the DISTANCE module, SPDIST calculates spherical distances on the surface of the earth from designated features using spherical trigonometry.
i	SRFIDRIS File/Import-Export/Software-Specific Formats	SRFIDRIS will import Surfer GRID raster files into IDRISI for Windows image format. It will also export IDRISI vector point files into the Surfer DAT format.
i	SSTIDRIS File/Import	Converts raster images entered with a spreadsheet to IDRISI. Can be used to read any ASCII image format with CR/LF characters at the end of each row.
i	STANDARD Analysis/Statistics Analysis/Decision Support	Converts an image to standard scores.
i	STRETCH Analysis/Decision Support Analysis/Image Processing	Produces linear, linear with saturation and histogram equalization contrast stretches in preparation for image display.
i	SUBSET DOS version only (in WINDOWS version integrated in WINDOW	Windows sub-images from groups of images.
i	SURFACE Analysis/Context Operators	Produces slope gradient and aspect images from a surface. Can also be used to create analytical hillshading.
i	SYMBOL WORKSHOP WINDOWS version only	SYMBOL WORKSHOP is used for the creation and editing of IDRISI symbol files.
i	THERMAL Analysis/Image Processing	Converts LANDSAT TM Band 6 raw data to blackbody temperatures.
i	THIESSEN Analysis/Distance Operators Data Entry/Surface Interpolation	Produces Thiessen polygons (a Voronoi Tesselation) about a set of irregularly distributed points.
i	TIFIDRIS File/Import-Export/Desktop Publishing Formats	Reads and writes TIFF format files.
i	TOSCA	An independent universal digitizing module distributed with IDRISI.
i	TRANSFOR Analysis/Mathematical Operators	Transforms the attributes of images such as log transformation, using any of 14 operations.
i	TRANSPOS Reformat	Image transposition by row or column reversal, or by rotation.
i	TREND Analysis/Statistics Data Entry/Surface Interpolation	Calculates the best fit linear, quadratic or cubic trend surface to a set of irregular cell control points by least-squares procedures. Produces new images of the trend surfaces in addition to surface statistics.
i	TSA Analysis/Change-Time Series	TSA is a spatial time series analysis procedure based on Standardized Principal Components. Up to 84 input images can be analyzed as a group with the production of an equal number of resulting components. Loadings graph are output either as IDRISI profiles or as a DIF-format data file that can be read by virtually all spreadsheet software systems.
i	UPDATE Data Entry	Keyboard entry/update of image data.
i	UTMREF Data Entry	is used to facilitate the creation of reference system parameter files based on the Universal Transverse Mercator system, for use with PROJECT
i	VAR2FIX File/Import/General Conversion Tools	Converts variable length ASCII files to fixed length.
i	VARCOST Analysis/Distance Operators	Computes an anisotropic cost surface. This module is the equivalent of COST (specifically the COSTPUSH algorithm) except that it recognizes that frictions may have different strengths in different directions. Frictions are entered as force vectors described by a pair of images - a magnitude image and a direction image. VARCOST also allows the specification of an isotropic friction image for omni-directional elements.
i	VGACOMP DOS version only	Produces color composite images for standard VGA systems.
i	VIEW	Allows direct examination of the data values in any portion of an image. Output precision is user-specified.
i	VIEWSHED Analysis/Context Operators	Creates an image of all points visible from one or more viewpoints over a given surface.
i	WATRSHED Analysis/Context Operators	Determines the watersheds of one or more specified locations.
i	WEIGHT Analysis/Decision Support	Computes a best-fit set of weights by calculation of the principal eigenvector of a pairwise reciprocal comparison matrix in which each factor in a multi-criteria evaluation is compared to every other factor. Information on consensus and procedures for resolving lack of consensus are provided.
i	WINDOW Reformat	Extracts a rectangular sub-image.(in WINDOWS version direct batch processing possible)
i	WMFIDRIS WINDOWS version only File/Export/Desktop Publishing Formats	WMFIDRIS is an export module that creates Windows Meta Files from IDRISI for Windows vector files as a means of facilitating the movement of IDRISI for Windows data to graphics packages (such as CorelDRAW! and Adobe Illustrator)
i	XYZIDRIS File/Import	XYZIDRIS converts data in X, Y and Z format (e.g., spreadsheet data) to IDRISI for Windows vector point files.

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