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pngnq
Langue: en
Version: NOVEMBER 2007 (debian - 07/07/09)
Section: 1 (Commandes utilisateur)
NAME
pngnq - quantize png imagesSYNOPSIS
pngnq [-vfhV][-s sample_factor ][-e extension ][-d dir ][-n colors ][ inputfiles ]DESCRIPTION
pngnq quantizes a 32-bit RGBA PNG image to an 8 bit RGBA palette PNG using the neuquant algorithm. The output file name is the input file name extended with "-nq8.png" or a specified extension.OPTIONS
- -v
- Verbose mode. Prints status messages.
- -f
- Force overwriting of files.
- -s sample factor
- Sample factor. The neuquant algorithm samples pixels stepping by this value. The default value of 3 gives good results. Higher values sample less of the image pixels and thus are faster but less accurate. A factor of 1 samples every image pixel.
- -n colors
- Specifies the number of colors to quantize to. Defaults to 256 which is the maximum. The minimum here is 2.
- -e extension
- Specifies the new filename extension. Defaults to "-nq8.png". Pngnq drops .png from the original filenames. If you set the argument of the -e option to .png and choose the -f option the input file will be overwritten.
- -d dir
- Tells pngnq to put output files in a directory other than the one the input files are in.
- input files
- The png files to be processed. Defaults to standard input if not specified. If standard input is being processed the output is sent to standard output.
- -h
- Print program help.
- -V
- Print version number and library versions.
BUGS
None known at this time.AUTHOR
Stuart Coyle <stuart@cybertherial.com>SEE ALSO
png(5)Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre