pnmdepth(1) General Commands Manual pnmdepth(1)NAME
pnmdepth - change the maxval in a portable anymap
SYNOPSIS
pnmdepth newmaxval [pnmfile]
DESCRIPTION
Reads a portable anymap as input. Scales all the pixel values, and writes out the image with the new maxval. Scaling the colors down to a
smaller maxval will result in some loss of information.
Be careful of off-by-one errors when choosing the new maxval. For instance, if you want the color values to be five bits wide, use a max-
val of 31, not 32.
One important use of pnmdepth is to convert a new format 2-byte-per-sample PNM file to the older 1-byte-per-sample format. Before April
2000, essentially all raw (binary) format PNM files had a maxval less than 256 and one byte per sample, and many programs may rely on that.
If you specify a newmaxval less than 256, the resulting file should be readable by any program that worked with PNM files before April
2000.
SEE ALSO pnm(5), ppmquant(1), ppmdither(1)AUTHOR
Copyright (C) 1989, 1991 by Jef Poskanzer.
08 April 2000 pnmdepth(1)
Check Out this Related Man Page
pnmdepth(1) General Commands Manual pnmdepth(1)NAME
pnmdepth - change the maxval in a portable anymap
SYNOPSIS
pnmdepth newmaxval [pnmfile]
DESCRIPTION
Reads a portable anymap as input. Scales all the pixel values, and writes out the image with the new maxval. Scaling the colors down to a
smaller maxval will result in some loss of information.
Be careful of off-by-one errors when choosing the new maxval. For instance, if you want the color values to be five bits wide, use a max-
val of 31, not 32.
One important use of pnmdepth is to convert a new format 2-byte-per-sample PNM file to the older 1-byte-per-sample format. Before April
2000, essentially all raw (binary) format PNM files had a maxval less than 256 and one byte per sample, and many programs may rely on that.
If you specify a newmaxval less than 256, the resulting file should be readable by any program that worked with PNM files before April
2000.
SEE ALSO pnm(5), ppmquant(1), ppmdither(1)AUTHOR
Copyright (C) 1989, 1991 by Jef Poskanzer.
08 April 2000 pnmdepth(1)
I need to use bash to convert sentences where all words start with a small letter into one where all words start with a capital letter.
So that a string like:
are utilities ready for hurricane sandy
becomes:
Are Utilities Ready For Hurricane Sandy (10 Replies)
Hi
I am new to this forum.
Any please help me to capture ctrl x and ctrl y via a bash script.
and please tell me how to clear the prompt via bash script
BR
Ramukumar M (4 Replies)
I have an Oracle Linux 7.1 vsphere host built. It's be preconfigured with our security configurations.
What I would like to do is unconfigure this host. Then set the host to do firstboot --reconfigure.
how do I do that using /etc/sysconfig/firstboot?
I've tried setting
... (10 Replies)
i know from the command line, the symbol $_ is used to get the last command that was run.
however, id like to replicate this within a script.
meaning, how do i do something like this:
#!/bin/sh
ps -ef | egrep talling
StoreThisLastCommandA=$_
awk '/error/ {print $3}' /tmp/test... (5 Replies)
hi folks,
how to using tar with exclude directory and compress it using tar.Z
i only know how to exclude dir only with this command below:
tar -cvf /varios/restore/test.tar -X excludefile.txt /jfma/test1/
how to compress it using 1 command?
Thanx
Please use CODE tags as... (6 Replies)
Quite an obscure question I think.
We have a rebuild process for remote sites that allows us to PXE rebuild a till (actually a PC with a touch screen and various fancy bits) running CentOS. The current CentOS5 tills work just fine with a tar image restore and some personalisation. Sadly,... (4 Replies)
Hello All,
I had recently learnt a bit of Docker(which provides containerization process).
Here are some of my learning points from it.
Let us start first with very basic question:
What is Docker:
Docker is a platform for sysadmins and developers to DEPLOY, DEVELOP and RUN applications ... (7 Replies)
Hi Folks,
I feel that I should be posting this in the Unix for Dummies Forum and will probably wish I'd created an account and done just that - but here goes anyway.
I have two identical servers both Dell R430's both running RedHat Enterprise Server 7.4 and the same kernel, both have the same... (16 Replies)
Hi,
What is installation package and how to create it?
When we run:
in AIX:
installp package1
or
in Linux
rpm -ivh mypackage
What is package1 or mypackage in the abov examples and how to create them and deploy them?
I hope my question is clear enough.
Thank you (2 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)
After the success of the jq - tool for parsing and manipulating JSON-Data someone wrote a tool called yq, which aims to be the same for YAML, what jq is for JSON. Seems to work fine. I'll definitely give it a chance in future.
Example YAML-File:
--- !ruby/object:Puppet::Node::Facts
... (1 Reply)