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

Web page maintained by: Bryan K. Irby