Palmtopnm User Manual(0) Palmtopnm User Manual(0)NAMEpalmtopnm - convert a Palm Bitmap to a PNM image
SYNOPSISpalmtopnm
[-verbose]
[-rendition N]
[-showhist] [palmfile] palmtopnm-transparent
[-verbose]
[palmfile]
DESCRIPTION
This program is part of Netpbm(1)palmtopnm reads a Palm Bitmap as input, from Standard Input or palmfile
and produces a PPM image as output.
Alternatively (when you specify -transparent), palmtopnm writes the
value of the transparent color in the Palm Bitmap to Standard Output.
Palmtopnm can convert Palm Bitmaps with the following features. This
does not mean that it doesn't handle other features. These are just
the ones we found worth mentioning.
· Version 0
· Version 1
· Version 2
· Version 3 (new in Netpbm 10.27 (March 2005))
· Scanline compression
· RLE compression
· Packbits compression (new in Netpbm 10.27 (March 2005))
OPTIONS-verbose
Display various interesting information about the input file and
process.
-transparent
If the Palm Bitmap has a transparent color set, palmtopnm writes
the value for that color to Standard Output in the form #RRGGBB,
where RR, GG, and BB are two-digit hexadecimal numbers indicat‐
ing a value in the range 0 through 255. If no transparent color
is set in the Bitmap, palmtopnm writes nothing. palmtopnm does
not generate any output image when you specify -transparent.
-rendition N
Palm Bitmaps may contain several different renditions of the
same image, with different depths. By default, palmtopnm oper‐
ates on the first rendition (rendition number 1) in the image.
This switch allows you to operate on a different rendition. The
value must be between 1 and the number of renditions in the
image, inclusive.
-showhist
This option causes palmtopnm to write a histogram of colors in
the input file to Standard Error.
SEE ALSOpnmtopalm(1) , pamtopdbimg(1) , pnm(1) ,
LIMITATIONS
You cannot generate an alpha mask if the Palm Bitmap has a transparent
color. However, you can still do this with ppmcolormask with a Netpbm
pipe similar to:
palmtopnm bitmap.palm | ppmcolormask `palmtopnm -transparent bit‐
map.palm`
HISTORY
Before Netpbm 10.23 (July 2004), there was a -forceplain option. But
that had been redundant for a long time, since the Netpbm common option
-plain does the same thing.
AUTHORS
This program was originally written as Tbmptopnm.c, by Ian Goldberg.
It was heavily modified by Bill Janssen to add color, compression, and
transparency function.
Copyright 1995-2001 by Ian Goldberg and Bill Janssen.
netpbm documentation 26 January 2005 Palmtopnm User Manual(0)