FV An easy-to-use FITS image viewer and editor
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editor viewer FITS viewer FITS editor FITS convert FITS image fits importer import fits open fits FITS astronomical image read FITS manipulate FITS image fits extension tables editor create FITS file generate FITS file FITS to JPEG customize FITS image view FITS image FITS image viewer edit FITS image fits file header editor use FITS image resample FITS image FITS image resampler adjust FITS image

FV Description

Fv is an easy-to-use application that can help you view and edit any FITS images or tables. The application can also manipulate virtually all aspects of a FITS file and perform basic data analysis of its contents. FITS images may be displayed with the usual pan, zoom, and color table manipulation facilities. Users may choose to use the SAOtng or DS9 image display tools (available separately from SAO), or the internal image display widget called POW that is supplied with fv. Double clicking an image displayed by POW will bring up a fv table of the image data with the clicked pixel highlighted. Selected columns in a FITS table may be viewed in a scrolling spreadsheet. The values in the table may be edited, and rows and columns may be inserted or deleted in the table. Tables can be sorted using multiple keys and rows with identical keys optionally deleted. Table rows can be selectively deleted using a boolean expression evaluated for each row. The contents of a table may be saved to an ASCII text file. Line plots of one or more columns (or arithmetic expressions involving one or more columns) in a table may be generated and displayed in the POW widget. Data can be extracted from a subset of rows; each row of a vector column can be plotted as a separate curve. Individual columns or pairs of columns can be used to produce 1D or 2D histograms, respectively, and plotted in POW. A summary window lists the contents and size of all the extensions in the FITS file. Entire extensions can be copied, cut, and pasted to/from the clipboard which can be saved to a new FITS file. New, empty FITS files can be created.

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