09-23-2008
That is really helpful
Thanks a lot
8 More Discussions You Might Find Interesting
1. Programming
Hi,
The description and the context of the mechanism that i require is as follows:
There is an application communicating with a protocol stack binary. There is a TCP socket communication between the two.
Now, the stack is pumping up data to the Application such that the receiving buffer of... (2 Replies)
Discussion started by: saptarshi
2 Replies
2. UNIX for Dummies Questions & Answers
Hi all,
Like in windows OS we have in unix something called "jobs"-term me if i am wrong- to run a sequence of steps which we can exceute at our own will without scheduling like corntab scheduling. can any one tell me what is the structure of this file and provide me with some info with this... (5 Replies)
Discussion started by: aixjadoo
5 Replies
3. AIX
Hi all,
on aix,whether have udev or devfs mechanism?
thanks! (4 Replies)
Discussion started by: anonys
4 Replies
4. Solaris
hi,
I have some windows client machines which require a signal to be sent by a Solaris machine( SunOS 5.6) when ever a particular event occurs on that Solaris machine. What are possible communication mechanisms by which i can do this.
the constraints are
> the windows machines have to... (7 Replies)
Discussion started by: Krsh
7 Replies
5. Programming
OIOIC is a completely new object-oriented mechanism for the C programming language.
Please download the "OIOIC-Primer-2nd-Edition-English.tar.gz". (the English version of << OIOIC Primer >> )
http://code.google.com/p/oioic/downloads/list
Welcome your advice!
Using OIOIC, you can describe... (7 Replies)
Discussion started by: pervise.zhao
7 Replies
6. Shell Programming and Scripting
Hello Folks,
I got an issue to be solved. I need to show the user a progress bar while executing an process using shell script
Example:
While updating firmware lets assume this will take 2 min to upgrade i need the shell script to show the progress bar as (0%) and at the end it should... (13 Replies)
Discussion started by: phanivarma
13 Replies
7. Shell Programming and Scripting
What if the operating systems would not use any ipc mechanism in order to exchange the datas with each other,which technique could be an alternative for messaging between the processes?Do you guys think using the vfork () system call to duplicate processes is a logical solution for this problem? (4 Replies)
Discussion started by: helltrex
4 Replies
8. Programming
Suppose I have 5 independent process divided in two imaginay sets:
set1 set2
---------------------
p1 p3
| |
p2 p4
|
p5
The processes inside each set communicate mutually quite often.
I mean p1 and p2 communicate mutually quite often
Similarly p3, p4 and p5 communicate mutually... (2 Replies)
Discussion started by: rupeshkp728
2 Replies
LEARN ABOUT MINIX
pbmreduce
pbmreduce(1) General Commands Manual pbmreduce(1)
NAME
pbmreduce - read a portable bitmap and reduce it N times
SYNOPSIS
pbmreduce [-floyd|-fs|-threshold ] [-value val] N [pbmfile]
DESCRIPTION
Reads a portable bitmap as input. Reduces it by a factor of N, and produces a portable bitmap as output.
pbmreduce duplicates a lot of the functionality of pgmtopbm; you could do something like pnmscale | pgmtopbm, but pbmreduce is a lot
faster.
pbmreduce can be used to "re-halftone" an image. Let's say you have a scanner that only produces black&white, not grayscale, and it does a
terrible job of halftoning (most b&w scanners fit this description). One way to fix the halftoning is to scan at the highest possible res-
olution, say 300 dpi, and then reduce by a factor of three or so using pbmreduce. You can even correct the brightness of an image, by
using the -value flag.
OPTIONS
By default, the halftoning after the reduction is done via boustrophedonic Floyd-Steinberg error diffusion; however, the -threshold flag
can be used to specify simple thresholding. This gives better results when reducing line drawings.
The -value flag alters the thresholding value for all quantizations. It should be a real number between 0 and 1. Above 0.5 means darker
images; below 0.5 means lighter.
All flags can be abbreviated to their shortest unique prefix.
SEE ALSO
pnmenlarge(1), pnmscale(1), pgmtopbm(1), pbm(5)
AUTHOR
Copyright (C) 1988 by Jef Poskanzer.
02 August 1989 pbmreduce(1)