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

FreeBSD Manual Pages

  
 
  

home | help
Bmptopnm User Manual(0)				       Bmptopnm	User Manual(0)

NAME
       bmptopnm	- convert a BMP	file into a PBM, PGM, or PNM image

SYNOPSIS
       bmptopnm

       [-verbose]

       [bmpfile]

DESCRIPTION
       This program is part of Netpbm(1).

       bmptopnm	reads a	Microsoft Windows or OS/2 BMP file as input.  and pro-
       duces a PBM, PGM, or PNM	image as output.  If the input is  colormapped
       and  contains only black	and white, the output is PBM.  If the input is
       colormapped and contains	only black white and gray, the output is  PGM.
       Otherwise, the output is	PPM.

       bmptopnm	 understands  BMP  files  compressed  with run length encoding
       (RLE4/RLE8), but	not if that encoding  includes	a  "delta"  (which  is
       rare).  bmptopnm	recognizes the delta and issues	an error message.

       Before  Netpbm  10.75 (June 2016), bmptopnm could not convert Version 4
       or Version 5 Windows BMP	images.

       bmptopnm	cannot convert BMP files compressed with JPEG or PNG encoding.
       It  recognizes  the  compression	 and  issues an	error message.	Before
       Netpbm 10.32 (February 2006), bmptopnm couldn't convert RLE8 BMP	 files
       either,	and  before  Netpbm 10.85 (December 2018), it couldn't convert
       RLE4 (between 10.32 and 10.85, it would act like	it recognized the for-
       mat, but	produce	garbage	output).

       Before  Netpbm  10.18  (September 2003),	this program could not convert
       BMP images with the BI_BITFIELDS	format ("compression type").  It would
       recognize the format and	issue an error message.

       bmptopnm	cannot convert OS/2 BMP	files with 16 bits per pixel (only be-
       cause the author	did not	have a complete	specification for  them).   It
       recognizes the format and issues	an error message.  Before Netpbm 10.16
       (June 2003), it also could not convert Windows BMP files	with  16  bits
       per pixel.

SEE ALSO
       ppmtobmp(1), ppmtowinicon(1), ppm(5)

AUTHOR
       Copyright (C) 1992 by David W. Sanderson.

DOCUMENT SOURCE
       This  manual  page was generated	by the Netpbm tool 'makeman' from HTML
       source.	The master documentation is at

	      http://netpbm.sourceforge.net/doc/bmptopnm.html

netpbm documentation		5 December 2018	       Bmptopnm	User Manual(0)

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | AUTHOR | DOCUMENT SOURCE

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=bmptopnm&sektion=1&manpath=FreeBSD+12.2-RELEASE+and+Ports>

home | help