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Anytopnm User Manual(0) Anytopnm User Manual(0)
NAME
anytopnm - convert an arbitrary type of image file to PBM, PGM, or PPM
anytopnm [file]
This program is part of Netpbm(1).
anytopnm converts the input image, which may be in any of about 100
graphics formats, to PBM, PGM, or PPM format, depending on that nature
of the input image, and outputs it to Standard Output.
To determine the format of the input, anytopnm uses the file program
(possibly assisted by the magic numbers file fragment included with
Netpbm). If that fails (very few image formats have magic numbers),
anytopnm looks at the filename extension. If that fails, anytopnm
punts.
The type of the output file depends on the input image.
anytopnm uses the converters for particular graphics formats that are
in the Netpbm package, so it can't convert any format that you couldn't
convert with some other Netpbm program. What anytopnm adds is the
ability to recognize the format and choose the appropriate Netpbm pro-
gram to convert it. For example, if you invoke anytopnm on a PNG file,
anytopnm will recognize that it is a PNG file and therefore pngtopnm
knows how to convert it to PNM, so anytopnm invokes pngtopnm.
anytopnm cannot recognize every possible input format, so you may still
be able to convert an image with a specific Netpbm program when any-
topnm fails to convert it.
If file indicates that the input file is compressed (either via Unix
compress, gzip, or bzip compression), anytopnm uncompresses it and pro-
ceeds as above with the uncompressed result.
If file indicates that the input file is encoded by uuencode or btoa,
anytopnm decodes it and proceeds as above with the decoded result.
If file is - or not given, anytopnm takes its input from Standard
Input.
pamfile(1), pnm(1), file man page
Copyright (C) 1991 by Jef Poskanzer.
netpbm documentation 05 September 2006 Anytopnm User Manual(0)
Man(1) output converted with
man2html and wrapped by fishsponge
This page was generated on Sat Sep 8 16:34:04 GMT 2007
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