FTOOLS: The FIMAGE Sub-package


The FIMAGE sub-package of FTOOLS contains tasks for FITS image file manipulation that are not specific to a particular mission or instrument.

The following list of FIMAGE tasks were released in the latest release of the HEASARC's FTOOLS package. Each task is hyperlinked to the help file distributed with the task. The same information can be obtained while running FTOOLS by typing the command fhelp {taskname}.

If you require further, or more detailed, information on the FUTILS sub-package of FTOOLS, contact

ftoolshelp@athena.gsfc.nasa.gov


FITS Image Tasks:

chimgtyp
Changes data type (BITPIX) of an image array
f2dhisto
Make a 2-D histogram from 2 columns in a table
fadapt
Convolve a FITS image with an adaptive top hat filter
farith
Perform arithmetic on 2 FITS images
fboxcar
Convolve a FITS image with a rectangular boxcar filter
fcarith
Perform arithmetic on FITS image with a constant
fgauss
Convolve a FITS image with an elliptical Gaussian function
fim2lst
Convert a 2D image to a pixel list (inverse of f2dhisto)
fimg2tab
Copies the image pixel values into a (binary/ascii) table extension.
fimconcat
Take 2 images and place them side by side as single image
fimgbin
Rebin a FITS image using a rectangular bin size
fimgdmp
Dump contents of a FITS image to an ASCII file
fimgextract
Extract a (vector) column from a table or a subset from an array, optionally summing over the rows
fimgmerge
Merge any number of images onto a given image
fimgstat
Compute statistics (max, min, etc.) for an image file
fimgpar
Copy the value of a FITS image pixel to the parameter file
fimgtrim
Reset image pixels with values above/below threshold values
fimhisto
Creates a histogram of the image extension
florentz
Convolve a FITS image with an elliptical Lorentzian function
flst2im
Create an output FITS image file from input list file containing a list of the coordinates and respective values
fmaskfilt
Filter an event list based on an input mask image
fmedian
Convolve a FITS image with a median value within an user defined rectangular box
fmrgmsk
Merge 2 or more spatial masks
fparimg
Write a task parameter value to a FITS image pixel
fregcon
SAOimage region file converter from one instrument/detector to another
fsaoi
Translate an SAOImage region file to an input file for fselect
fvec2img
Create an image from a column of vectors

FTOOLS HELP DESK

If FTOOLS has been useful in your research, please reference this website (http://heasarc.gsfc.nasa.gov/ftools/) and the following:

Blackburn, J. K. 1995, in ASP Conf. Ser., Vol. 77, Astronomical Data Analysis Software and Systems IV, ed. R. A. Shaw, H. E. Payne, and J. J. E. Hayes (San Francisco: ASP), 367.

Web page maintained by: Bryan K. Irby