To run a VIPS function, the first argument should be the name of the function and following arguments should be the function parameters. For example:

example% vips im_invert lena.v lena2.v

To query the VIPS function database, use "-help", then the name of a function or a package. For example:

example% vips -help "-help flags" for a list of flags available "-help <package name>" for a list of commands in package where <package name> is one of: arithmetic (31 functions) boolean (8 functions) colour (24 functions) ... etc relational (13 functions) "-help all" for a list of all commands in all packages "-help <command>" for an explanation of a command example% vips -help arithmetic functions available in package "arithmetic": im_abs - absolute value im_acostra - acos of image (result in degrees) ... etc im_stats - many image statistics in one pass im_tantra - tan of image (angles in degrees) example% vips -help im_abs vips: args: in out where: in is of type "image" out is of type "image" absolute value, from package "arithmetic" flags: (PIO function) (no coordinate transformation) example%

-help

simple built-in help system can give information on arguments to the vips program, on argumets to any VIPS function, or a listing of the functions available.

-plugin <file name>

Add commands in file to those normally available. Plugins are searched before the main VIPS function database, letting you override standard VIPS functions.

-links

Print "ln -s" lines for all VIPS functions. Used to build the VIPS bin area.

-ip <package name>

Print ip macros for the functions in the named package. Used to build the ip menu system.

-c++ <package name/function name/all>

Print C++ bindings for a function, for a package, or for all functions. Used to build the VImage class.