xenial (1) xcfview.1.gz

NAME

       xcfview - display GIMP xcf files

SYNOPSIS

       xcfview [ options ] filename [ layer names ]

DESCRIPTION

       xcfview  is  a  wrapper script that uses xcf2png(1) or xcf2pnm(1) (q.v.) to flatten an XCF image and then
       displays the flattened image using a PNG or  PPM  viewer  found  using  xdg-open(1)  from  the  xdg-utils
       package.

OPTIONS

       Every  command-line  parameter  to  xcfview  will  be passed through to the underlying xcf2png or xcf2pnm
       command.  Because it is not certain which converter will be used, the options given should be  ones  that
       make sense for both of these.

       --mask  Enable the layer mask.

       --mode mode
               Set the layer mode (e.g., Normal or Multiply).

       --nomask
               Disable the layer mask.

       --opacity n
               Set the opacity on a scale from 0 to 255 (as used internally)

       --percent n
               Set the opacity on a scale from 0 to 100 (as in the Gimp user interface).

       -A, --force-alpha
               Invent a trivial alpha channel even if the flattened image is completely opaque.

       -b color, --background color
               Use  this  color  for transparent pixels in the image.  The color can be given as #rrggbb or #rgb
               hexadecimal values, or as an X11 color name (which will only work if a color name database can be
               found in one of a number of standard locations).

       -c, --color, --colour
               Force the output to use RGB color space even if it there are more compact alternatives.

       -C, --autocrop
               Set  the  converted part of the image such that it just include the boundaries of the visible (or
               selected) layers.  This may make it either smaller or larger than the canvas,  depending  on  the
               position and size of the visible layers.  (Note that the contents of the layers is not taken into
               account when autocropping).

               In the absence of options that specify otherwise, the converted image will cover the  entire  XCF
               canvas.

       -D, --dissolve
               Do  a  "dissolve"  step to eliminate partial transparency after flattening.  If -b is also given,
               this happens before the background color is applied.

       -f, --full-image
               First flatten the entire image to a memory buffer before writing output. Then analyse  the  image
               to  decide  on the details of the output format (e.g., whether a grayscale output is sufficient).
               Without this option, the program flattens only a singe row of "tiles" (height 64) at a time.

       -g, --gray, --grey
               Force the output to be a grayscale image even if it may be monochrome.  If any colored pixels are
               encountered, exit with status 103.  This will be selected automatically if the output file's name
               ends with .pgm.

       -G, --for-gif
               Assert that the flattened image will have  no  partial  transparency  (allowing  a  more  compact
               representation of the alpha output).  Exit with status 102 if the flattened image has any partial
               transparency.  If -b is also given, this tests whether there there is partial transparency before
               applying the background color.

       -h, --help
               Print an option summery to standard output and exit with a return code of 0.

       -j, --bzip
               Equivalent to -Z bzcat.  Default if the filename ends with bz2.

       -o filename, --output filename
               Write the converted picture to filename instead of to standard output.

       -O x,y, --offset x,y
               Offset  the  converted part of the image from the top-left corner of the XCF canvas. Usually used
               with -S.

       -S wxh, --size wxh
               Crop the converted image to width w and height h.

       -T, --truecolor
               Use standard RGB compositing for flattening indexed layers.  Without this  option,  xcfview  will
               mimic  the  Gimp's  current  strategy of rounding each alpha value to either full transparency or
               full opacity, and interpret all layer modes as Normal.

       -u, --utf8
               Use the raw UTF-8  representation  from  the  XCF  file  to  compare  and  display  layer  names.
               Ordinarily, layer names will be converted to the character set of the current locale.

       -v, --verbose
               Print progress messages about the conversion to standard error.

       -V, --version
               Print the version numer of xcftools to standard output and exit with a return code of 0.

       -z, --gzip
               Equivalent to -Z zcat.  Default if the filename ends with gz.

       -Z command, --unpack command
               Specify  a  command  that  the  input file is filtered through before being interpreted as an XCF
               file. The command is invoked as command filename and must produce output to its standard  output.
               Note  that  it  is  not  possible  to  specify  arguments as part of command.  An uncompressor is
               selected automatically if the filename ends with gz or bz2; to suppress this, use -Z  cat  (which
               is implemented without actually starting a cat(1) process).

EXIT STATUS

       The  exit  status  is  0  in  case  of  success.  A nonzero exit status may either be that of the xcf2foo
       converter or that of the image viewer.

AUTHOR

       xcfview was written by Henning Makholm <henning@makholm.net>.

       Parts of the script originate from the run-mailcap(1) script by Brian White <bcwhite@pobox.com>  but  are
       superseded  by  the  Debian  specific changes of Jan Hauke Rahm <info@jhr-online.de> (to make use of xdg-
       utils).

SEE ALSO

       xcf2pnm(1), xcf2png(1), xdg-open(1)