Provided by: fitsh_0.9.2-1_amd64 bug


       fiinfo - providing information or image stamps for images


       fiinfo [options] [-i <input>] <outputs>


       The  main purpose of the `fiinfo` program is to give some information about the FITS files
       (primarily FITS images, but output dump is supported for tables and binary tables also).


   General options:
       -h, --help
              Gives general summary about the command line options.

       --long-help, --help-long
              Gives a detailed list of command line options.

       --wiki-help, --help-wiki, --mediawiki-help, --help-mediawiki
              Gives a detailed list of command line options in Mediawiki format.

       --version, --version-short, --short-version
              Gives some version information about the program.

       -i, --input <image file>
              Name of the input FITS image file.

       --summary, --long-summary
              Give a summary about the content structure of  the  FITS  file.  Namely,  the  main
              characteristics  and  dimensions  of  the  primary  image,  followed by the list of
              optional extensions and their main properties.

       -s, --statistics <list of statistics>
              Calculate basic statistics for  the  image.  See  "Statistics  options"  below  for
              available  statistics  methods.  The  statistics  itself contains four numbers: the
              total number of pixels involved in the calculations, the  final  number  of  pixels
              used  for  the  statistics  (which  might  be  smaller than the previous one if the
              outliers are rejected), an average value and a scatter.

       -d, --data <list of derived image data>
              Calculate some other more quantities related to astronomical  images.  This  option
              should   be   followed   by  a  comma-separated  list  of  quantities.  See  "Image
              characteristics" below for more details about these.

       -b, --box <number of blocks>
              This option specifies the number of blocks, which  is  used  to  divide  the  input
              image.  Some quantities (see "Image characteristics") can be derived on a per block
              basis either.

       -a, --order <order>
              Order of polynomial spatial  variations  in  some  derived  image  characterization
              quantities (see also "Image characteristics").

       -n, --newline
              In  the  output, each quantity should be written in separate lines. By default, the
              output is a single line, containing the desired quantities or statistics.

              Completely ignore the mask associated to the input image.

       --output-dump <file>
              Name of an output file in which a raw image dump is written. Each line of this file
              contains  3  or  4  columns:  X, Y coordinates and flux, optionally followed by the
              associated mask flag (see also "-m|--dump-mask").

       -m, --dump-mask
              The raw  image  dump  specified  by  "--output-dump"  should  contain  the  masking
              information beyond the coordinates and intensities.

       --output-pnm, --output-ppm, --output-pgm
              Name  of  an  output  file in which the image is stored in a variant of PNM format.
              These images are intended to be a kind of  "human  visible"  images,  appropriately
              scaled  for  normal  displays.  These  images are stored in PNM format, which is an
              easily parseable  (thus  raw,  uncompressed)  format,  supported  by  many  graphic
              programs  (and  by  the  NETPBM package). Such an image conversation always results
              data loss. See also options "--pgm" or "--ppm" for further details.

       --pgm <PGM specific conversion options>
              This command line argument is followed by a comma-separated list of options,  which
              specifies  the scaling and other properties of the output image. The resulted image
              will be a grey-scale (PGM) image, even if a color palette is  requested.  See  "PNM
              specifications" below.

       --ppm <PPM specific conversion options>
              This  command line argument is followed by a comma-separated list of options, which
              specifies the scaling and other properties of the output image. The resulted  image
              will  be  a  true-color (PPM) image, even if a greyscale colormap is requested. See
              also "PNM specifications" below for more details.

   Statistics options:
       mean   The mean value of the pixel intensities.

       median The median value of the pixel intensities.

              Reject the outlier pixels before doing any statistics.

       lower=<sigma>, upper=<sigma>, sigma=<sigma>
              Lower, upper or common rejection level, in the units of standard  deviation  (which
              is derived around the mean or median value, depending on the request of the user).

   Image characteristics:
       min, max
              Minimal and maximal pixel intensities on the image.

       mean   Mean intensity level.

       stddev Standard deviation.

       sky    Sky background level.

              Sky background scatter.

   PNM specifications:
       linear Use a linear intensity scaling.

       log    Use a logarithmic intensity scaling.

              Use a squared intensity scaling.

       sqrt   Use a square root intensity scaling.

              Use a histogram equalized intensity scaling.

       minmax Use the minimal and maximal pixel intensities for scaling boundaries.

              Use  the minimal and maximal values of the innermost specified percent of the pixel

       min=<min>, max=<max>
              Use the specified minimal and maximal values for scaling boundaries.

       zscale Use the "zscale" algorithm to determine scaling boundaries.

       zmax, zmin
              Use the "zmax" or "zmin" algorithm to determine scaling boundaries.

              Use the specified contrast value to determine the scaling boundaries in the case of
              "zscale", "zmax" or "zmin" methods. The default value is 0.25.

              Use an inverted color map.

       contrast=<C>, brightness=<B>
              Use  the  specified  values  for  adjusting  the final contrast and brightness. The
              default values are 1  and  0.5,  respectively,  according  to  the  standard  image
              contrast and brightness level definitions.

       8, 8bit
              Create an 8-bit PGM or PPM output. This is the default.

       16, 16bit
              Create a 16-bit PGM or PPM output instead of the default 8-bit.

              Specify  an  alternate color map. Each color should be a hexadecimal representation
              of a given color, i.e. it should be in one of the forms of G, GG, GGGG, RGB, RRGGBB
              or  RRRRGGGGBBBB,  denoting 4 bit grey, 8 bit grey, 16 bit grey, 3x4 bit truecolor,
              3x8 bit truecolor or 3x16 bit truecolor representation, respectively. The color map
              gradient  will  be  continuous  if the colors are separated by colons. Jumps in the
              gradient can be defined by separating the successive colors by a slash, "/" instead
              of colons.

       Note  that the syntax followed by the "--pgm" or "--ppm" command line arguments is exactly
       the same for both options. However, color images will be converted to greyscale if "--pgm"
       is  specified,  and  vice  versa,  "--ppm"  always  yields a PPM format, even if the color
       gradient is merely a grayscale one. The default palette  is  0:F  for  both  PGM  and  PPM
       formats, i.e. a pure black - white gradient.


       Report bugs to <>, see also


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