Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help 
NIP2(1) 		     General Commands Manual			 NIP2(1)

NAME
     nip2 - image processing with the VIPS library

SYNOPSIS
     nip2 [filename1 ...]
     nip2 -s filename [arg1 ...]
     nip2 -e expression [arg1 ...]

DESCRIPTION
     nip2 (for New Image Processing) is a tool for manipulating images using the
     VIPS image processing library.

     There are three principal modes:

     nip2 [filename1 ...]
       start in GUI mode, loading the named files

     nip2 -e expression [arg1 ...]
     nip2 --expression=EXPRESSION [arg1 ...]
       start in no-GUI mode; set main = expression, set list argv to
       ["filename", "arg1", "arg2", ...], set argc to length of list; print
       the value of symbol "main" to stdout; exit

     nip2 -s filename [arg1 ...]
     nip2 --script=FILENAME [arg1 ...]
       start in no-GUI mode; read in filename as a set of definitions,
       set list argv to ["filename", "arg1", "arg2", ...], set argc to
       length of list; print the value of symbol "main" to stdout; exit;
       useful for running nip2 as an interpreter on unix

     You can use -o to direct output to a file rather than stdout.

     -o filename
     --output=FILENAME
       the value of main is written to the named file. If main is a
       list, the filename is incremented between objects. You can use
       the suffix to specify the format and options to write in

     Other  options provide finer control over startup and shutdown. If you need
     to do something strange, don't use -e/-s, use these in combination.

     -b
     --batch
       batch (ie. non-GUI) mode

     -m
     --no-load-menus
       don't load menus, for faster startup

     -a
     --no-load-args
       don't load extra command-line arguments

     -w
     --stdin-ws
       load stdin as a workspace

     -d
     --stdin-def
       load stdin as a set of definitions

     -p
     --print-main
       print the value of main on exit. nip2 will check for a top-level
       symbol called main, and also check each workspace for a main

     Finally some other options are useful for debugging, timing and for  gener-
     ating strings for internationalisation.

     -V
     --verbose
       produce verbose error messages: handy for debugging in batch mode

     -i
     --i18n
       output strings from .def files for internationalisation

     -v
     --version
       print version information

     -c
     --benchmark
       benchmark: no GUI, just start up and shut down

     -t
     --time-save
       time saves: after every image save a popup tells you the time the
       save took in seconds

     -T
     --test
       test: start up (including any arg processing), test for any errors,
       and exit with an error code if any occured. Useful for running
       automated tests.

     -x PREFIX
     --prefix=PREFIX
       set install prefix: start up as if nip2 had been installed to PREFIX.
       Useful for running automated tests without installing the thing.

EXAMPLES
       nip2 fred.jpg

     Start nip2, loading fred.jpg.

       nip2 -e "2 + 2"

     Prints 4 to stdout.

       nip2 -e "99 + Image_file argv?1" -o result.png fred.jpg

     Load argv1 (fred.jpg), add 99, output to result.png.

       nip2 -e "Matrix [[1,2],[4,5]] ** -1" -o poop.mat

     Invert the 2x2 matrix and write the result to poop.mat.

COPYRIGHT
     2008 (c) Imperial College, London

				   Oct 4 2004				 NIP2(1)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=nip2&sektion=1&manpath=FreeBSD+Ports+15.1.quarterly>

home | help