rawtopgm
Section: User Commands (1)
Updated: 15 December 89
Index
Return to Main Contents
NAME
rawtopgm - convert raw grayscale bytes into a portable graymap
SYNOPSIS
rawtopgm
[-headerskip
N]
[-rowskip
N]
width height
[imagedata]
DESCRIPTION
Reads raw grayscale bytes as input.
Produces a portable graymap as output.
The input file is just grayscale bytes.
You have to specify the width and height on the command line,
since the program obviously can't get them from the file.
The maxval is assumed to be 255.
If the resulting image is upside down, run it through
pnmflip -tb .
OPTIONS
- -headerskip
-
If the file has a header, you can use this flag to
skip over it.
- -rowskip
-
If there is padding at the ends of the rows, you can skip it with this flag.
Note that rowskip can be a real number.
Amazingly, I once had an image with 0.376 bytes of padding per row.
This turned out to be due to a file-transfer problem, but I was still
able to read the image.
SEE ALSO
pgm(5), rawtoppm(1), pnmflip(1)
AUTHOR
Copyright (C) 1989 by Jef Poskanzer.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- OPTIONS
-
- SEE ALSO
-
- AUTHOR
-
This document was created by
man2html,
using the manual pages.
Time: 20:44:45 GMT, June 11, 2022