; IMAGING ;--------------------------------------------------------------- ;! Information about IMAGING ;# INFORMATION GENERAL ;----------------------------------------------------------------------- ;; Copyright (C) 1995-2010 ;; Associated Universities, Inc. Washington DC, USA. ;; ;; This program is free software; you can redistribute it and/or ;; modify it under the terms of the GNU General Public License as ;; published by the Free Software Foundation; either version 2 of ;; the License, or (at your option) any later version. ;; ;; This program is distributed in the hope that it will be useful, ;; but WITHOUT ANY WARRANTY; without even the implied warranty of ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;; GNU General Public License for more details. ;; ;; You should have received a copy of the GNU General Public ;; License along with this program; if not, write to the Free ;; Software Foundation, Inc., 675 Massachusetts Ave, Cambridge, ;; MA 02139, USA. ;; ;; Correspondence concerning AIPS should be addressed as follows: ;; Internet email: aipsmail@nrao.edu. ;; Postal address: AIPS Project Office ;; National Radio Astronomy Observatory ;; 520 Edgemont Road ;; Charlottesville, VA 22903-2475 USA ;----------------------------------------------------------------------- IMAGING LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC ---------------------------------------------------------------- List of verbs, adverbs, tasks in category IMAGING AHIST Task to convert image intensities by adaptive histogram ALLOKAY specifies that initial conditions have been met. APCLN Deconvolves images with CLEAN algorithm APGS deconvolves image with Gerchberg-Saxton algorithm APVC Deconvolves images with van Cittert algorithm AVOPTION Controls type or range of averaging done by a task BCOMP gives beginning component number for multiple fields BLC gives lower-left-corner of selected subimage BLWUP Blow up an image by any positive integer factor. BMAJ gives major axis size of beam or component BMIN gives minor axis size of beam or component BOX2CC Converts CLBOX in pixels to CCBOX in arc seconds BOXES Adds Clean boxes to BOXFILE around sources from a list BOXFILE specifies name of Clean box text file BOX specifies pixel coordinates of subarrays of an image BPA gives position angle of major axis of beam or component BSAVG Task to do an FFT-weighted sum of beam-switched images BSCLN Hogbom Clean on beam-switched difference image BSGRD Task to image beam-switched single-dish data BSMAP images weak sources with closure phases CANDY user-definable (paraform) task to create an AIPS image CCBOX specifies pixel coordinates of subarrays of an image CCEDT Select CC components in BOXes and above mininum flux. CCFND prints the contents of a Clean Components extension file. CCGAU Converts point CLEAN components to Gaussians CCMOD generates clean components to fit specified source model CCMRG sums all clean components at the same pixel CCRES Removes or restores a CC file to a map with a gaussian beam. CELLSIZE gives the pixel size in physical coordinates CHKFC makes images of Clean boxes from Boxfile CLBOX specifies subarrays of an image for Clean to search CMETHOD specifies the method by which the uv model is computed CMODEL specifies the method by which the uv model is computed COHER Baseline Phase coherence measurement COMAP_DO MX adverbs not changed by COMAP COMAP Procedure to MAP and Self-Calibrate a UVDATA set COMAP_MX MX adverbs not changed by COMAP COMAP_NA Procedure to MAP and Self-Calibrate a UVDATA set COMAP_UV Procedure to MAP and Self-Calibrate a UVDATA set CONPL Plots AIPS gridding convolution functions CONVL convolves an image with a gaussian or another image CUTOFF specifies a limit below or above which the operation ends CXCLN Complex Hogbom CLEAN DCONV deconvolves a gaussian from an image DECSHIFT gives Y-coordinate shift of an image center from reference DELBOX Verb to delet boxes with TV cursor & graphics display. DFILEBOX Verb to delete Clean boxes with TV cursor & write to file DO3DIMAG specifies whether uvw's are reprojected to each field center DOGRIDCR selects correction for gridding convolution function DRAWBOX Verb to draw Clean boxes on the display DTSUM Task to provide a summary of the contents of a dataset EVAUV Subtracts & divides a model Into uv data, does statistics on results FACES makes images of catalog sources for initial calibration FACTOR scales some display or CLEANing process FETCH Reads an image from an external text file. FFT takes Fourier Transform of an image or images FGAUSS Minimum flux to Clean to by widths of Gaussian models FILEBOX Verb to reset Clean boxes with TV cursor & write to file FILIT Interactive BOXFILE editing with facet images FIXBX converts a BOXFILE to another for input to IMAGR FLATN Re-grid multiple fields into one image incl sensitivity FLDSIZE specifies size(s) of images to be processed FLUX gives a total intensity value for image/component or to limit FSIZE file size in Megabytes GAIN specifies loop gain for deconvolutions GUARD portion of UV plane to receive no data in gridding HISEQ task to translate image by histogram equalization HLPCLEAN Cleaning tasks - internal help HLPSCIMG Cleaning tasks - internal help HLPSCMAP Cleaning tasks - internal help HOLGR Read & process holography visibility data to telescope images HYB RUN to set parameters for HYBRID (CALIB/MX) self-cal imaging IM2PARM Specifes enhancement parameters for OOP-based imaging: 2nd set IM2UV converts an image to a visibility data set IMAGR Wide-field and/or wide-frequency Cleaning / imaging task. IMAGRPRM Specifes enhancement parameters for OOP-based imaging IMERG merges images of different spatial resolutions IMSIZE specifies number of pixels on X and Y axis of an image IMTXT Write an image to an external text file. INLIST specifies name of input disk file, usually a source list LTESS makes mosaic images by linear combination MANDL creates an image of a subset of the Mandlebrot Set MAPPR Simplified access to IMAGR MAXPIXEL maximum pixels searched for components in Clark CLEAN MODVF task to create a warped velocity field MWFLT applies linear & non-linear filters to images NBOXES Number of boxes NCCBOX Number of clean component boxes NCOMP Number of CLEAN components NDIG Number of digits to display NFIELD The number of fields imaged NMAPS Number of maps (images) in an operation NOIFS makes all IFs into single spectrum NOISE estimates the noise in images OBOXFILE specifies name of output Clean box text file ONEBEAM specifies whether one beam is made for all facets or one for each OOSUB Subtracts/divides a model from/into a uv data base OUT2CLAS The class of a secondary output file OUT2DISK The disk number of a secondary output file. OUT2NAME The name of a secondary output file. OUT2SEQ The sequence of a secondary output file. OVERLAP specifies how overlaps are to be handled OVRSWTCH specifies when IMAGR switches from OVERLAP >= 2 to OVERLAP = 1 mode PADIM Task to increase image size by padding with some value PASTE Pastes a selected subimage of one image into another. PATGN Task to create a user specified test or primary-beam pattern PBCOR Task to apply or correct an image for a primary beam PBPARM Primary beam parameters PBSIZE estimates the primary beam size in interferometer images PGEOM Task to transform an image into polar coordinates. PHASE Baseline Phase coherence measurement PHAT Prussian hat size PIX2VAL An image value in the units specified in the header. PIX2XY Specifies a pixel in an image PIXAVG Average image value PIXRANGE Range of pixel values to display PIXSTD RMS pixel deviation PIXVAL Value of a pixel PIXXY Specifies a pixel location. PRTCC prints the contents of a Clean Components extension file. PUTVALUE Verb to store a pixel value at specified position QUANTIZE Quantization level to use REBOX Verb to reset boxes with TV cursor & graphics display. REGRD Regrids an image from one co-ordinate frame to another REMAG Task to replace magic blanks with a user specified value RMSD Calculate rms for each pixel using data at the box around the pixel ROBUST Uniform weighting "robustness" parameter RSTOR Restores a CC file to a map with a gaussian beam. SABOX create box file from source islands in facet images SCIMG Full-featured imaging plus self-calibration loop with editing SCMAP Imaging plus self-calibration loop with editing SDCLN deconvolves image by Clark and then "SDI" cleaning methods SDGRD Task to select and image random-position single-dish data SDIMG Task to select and image random-position single-dish data SETFC makes a BOXFILE for input to IMAGR SHADW Generates the "shadowed" representation of an image SHIFT specifies a position shift SIZEFILE return file size plus estimate of IMAGR work file size SKEW Specifies a skew angle SKYVE Regrids a DSS image from one co-ordinate frame to another SMODEL Source model SNCUT Specifies minimum signal-to-noise ratio SPECR Spectral regridding task for UV data SPIXR Fits spectral indexes to each row of an image incl curvature STEER Task which deconvolves the David Steer way. STESS Task which finds sensitivity in mosaicing STFACTOR scales star display or SDI CLEANing process STUFFR averages together data sets in hour angle SUBIM Task to select a subimage from up to a 7-dim. image SUMIM Task to sum overlapping, sequentially-numbered images TKBOX Procedure to set a Clean box with the TK cursor TKNBOXS Procedure to set Clean boxes 1 - n with the TK cursor TRANSCOD Specified desired transposition of an image TRANS Task to transpose a subimage of an up to 7-dim. image TRC Specified the top right corner of a subimage TVBOX Verb to set boxes with TV cursor & graphics display. UBAVG Baseline dependent time averaging of uv data UTESS deconvolves images by maximizing emptiness UVBOX radius of the smoothing box used for uniform weighting UVBXFN type of function used when counting for uniform weighting UVIMG Grid UV data into an "image" UVMAP makes images from calibrated UV data. UVPOL modifies UV data to make complex image and beam UVSIZE specifies number of pixels on X and Y axes of a UV image UVSUB Subtracts/divides a model from/into a uv data base UVWTFN Specify weighting function, Uniform or Natural VLARUN calibrating amplitude and phase, and imaging VLA data VTESS Deconvolves sets of images by the Maximum Entropy Method WFCLN Wide field and/or widefrequency CLEANing/imaging task. WGAUSS Widths of Gaussian models (FWHM) WTSUM Task to do a a sum of images weighted by other images XMOM Fits one-dimensional moments to each row of an image YPARM Specifies Y axis convolving function ZEROSP Specify how to include zero spacing fluxes in FT of UV data