rawtoppm(1) General Commands Manual rawtoppm(1)NAME
rawtoppm - convert raw RGB bytes into a portable pixmap
SYNOPSIS
rawtoppm [-headerskip N] [-rowskip N] [-rgb|-rbg|-grb |-gbr|-brg|-bgr ] [-interpixel|-interrow] width height [imagedata]
DESCRIPTION
Reads raw RGB bytes as input. Produces a portable pixmap as output. The input file is just RGB 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.
-rgb -rbg -grb -gbr -brg -bgr
These flags let you specify alternate color orders. The default is -rgb.
-interpixel -interrow
These flags let you specify how the colors are interleaved. The default is -interpixel, meaning interleaved by pixel. A byte of
red, a byte of green, and a byte of blue, or whatever color order you specified. -interrow means interleaved by row - a row of red,
a row of green, a row of blue, assuming standard rgb color order. An -interplane flag - all the red pixels, then all the green,
then all the blue - would be an obvious extension, but is not implemented. You could get the same effect by splitting the file into
three parts (perhaps using dd), turning each part into a PGM file with rawtopgm, and then combining them with rgb3toppm.
SEE ALSO ppm(5), rawtopgm(1), rgb3toppm(1), pnmflip(1)AUTHOR
Copyright (C) 1991 by Jef Poskanzer.
06 February 1991 rawtoppm(1)
Check Out this Related Man Page
rawtoppm(1) General Commands Manual rawtoppm(1)NAME
rawtoppm - convert raw RGB bytes into a portable pixmap
SYNOPSIS
rawtoppm [-headerskip N] [-rowskip N] [-rgb|-rbg|-grb |-gbr|-brg|-bgr ] [-interpixel|-interrow] width height [imagedata]
DESCRIPTION
Reads raw RGB bytes as input. Produces a portable pixmap as output. The input file is just RGB 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.
-rgb -rbg -grb -gbr -brg -bgr
These flags let you specify alternate color orders. The default is -rgb.
-interpixel -interrow
These flags let you specify how the colors are interleaved. The default is -interpixel, meaning interleaved by pixel. A byte of
red, a byte of green, and a byte of blue, or whatever color order you specified. -interrow means interleaved by row - a row of red,
a row of green, a row of blue, assuming standard rgb color order. An -interplane flag - all the red pixels, then all the green,
then all the blue - would be an obvious extension, but is not implemented. You could get the same effect by splitting the file into
three parts (perhaps using dd), turning each part into a PGM file with rawtopgm, and then combining them with rgb3toppm.
SEE ALSO ppm(5), rawtopgm(1), rgb3toppm(1), pnmflip(1)AUTHOR
Copyright (C) 1991 by Jef Poskanzer.
06 February 1991 rawtoppm(1)
Split large xml into mutiple files and with header and footer in file
tried below
it splits unevenly and also i need help in adding header and footer
command :
csplit -s -k -f my_XML_split.xml extrfile.xml "/<Document>/" {1}
sample xml
<?xml version="1.0" encoding="UTF-8"?><Recipient>... (36 Replies)
Here are instructions to clear the data cache for four browsers, Safari, Chrome, Firefox, Opera. In these examples I'm using MacOS Mojave, but it should be similar for any OS.
You can use these instructions to to clear and reload the cache if you have any issues with the Vue.js UserCP (current... (1 Reply)
Yesterday someone asked me to install TeamViewer and share my Mac screen with them while on a conference call.
I shut down my Mac before sleeping and woke up to some major problem with my 12-core CPU in hyperdrive, and the system activity monitor showed my Mac kernel_task was at 1,200% and the... (30 Replies)
What is the point of this? Whenever I close my shell it appends to the history file without adding this. I have never seen it overwrite my history file.
# When the shell exits, append to the history file instead of overwriting it
shopt -s histappend (3 Replies)
Hi,
I am attempting to extract the /lib/ paths using sed but it does not appear to work.
./copy_chroot_lib.sh ls echo | sed s#*\(/lib\).*#\1#g
linux-vdso.so.1 (0x00007fff77df1000)
libselinux.so.1 => /lib/x86_64-linux-gnu/libselinux.so.1 (0x00007f28190ac000)
... (8 Replies)
hi,
I am searching for a native tool on MacOS that can increase the resolution of a group of image files whose aspect ratios (file width versus height) vary widely. There are numerous files so I don't wish to do this manually. Someone suggested the sips command with the resampling option but... (5 Replies)
I'm trying to use a bash script for a psych experiment that involves listening to sound files and responding. If I have something like the code below, how can I make sure that a key press is assigned to RESPONSE only after the second echo statement?
for i in 1 2 3; do
echo "Ready?"
sleep 2
... (10 Replies)
Hi all...
Well guys and gals, I jumped in at the deep end and found things that PERL cannot do by default.
Many tricky terminal escape codes are not catered for so I had to create workarounds.
One thing I searched for was this:
Passing perl variable to shell command
AND, @Neo this was... (15 Replies)
Python 3.8.0rc1 released today, 1st October 2019...
Just tried it out testing my AMIGA Python 1.4.0 code inside it and all are working, I can now test to the latest Python incarnation now.
Subjective opinion is that is seems seriously quick on my OSX 10.14.6, latest Mojave update.
Python... (0 Replies)
Hi Guys,
I wrote a collection of bash functions years ago and now need to use them again but
I'm getting some error messages when eval tries to expand the variables names.
I recollect that I used the shopt command to set one of the options but I can't quite
remember the command that I... (8 Replies)
I'm trying to complete a bash script to capture if an external webcam is active in a video conference session. Some users will switch the camera to the built-in MAC camera. When this happens I want to trigger a set of events.
Things tried: reviewed the console.app to look for patterns on when... (6 Replies)