ppmdim(1) General Commands Manual ppmdim(1)NAME
ppmdim - dim a portable pixmap down to total blackness
SYNOPSIS
ppmdim dimfactor [ppmfile]
DESCRIPTION
Reads a portable pixmap as input. Diminishes its brightness by the specified dimfactor down to total blackness. The dimfactor may be in
the range from 0.0 (total blackness, deep night, nada, null, nothing) to 1.0 (original picture's brightness).
As pnmgamma does not do the brightness correction in the way I wanted it, this small program was written.
ppmdim is similar to ppmbrighten , but not exactly the same.
SEE ALSO ppm(5), ppmflash(1), pnmgamma(1), ppmbrighten(1)AUTHOR
Copyright (C) 1993 by Frank Neumann
16 November 1993 ppmdim(1)
Check Out this Related Man Page
ppmshift(1) General Commands Manual ppmshift(1)NAME
ppmshift - shift lines of a portable pixmap left or right by a random amount
SYNOPSIS
ppmshift shift [ppmfile]
DESCRIPTION
Reads a portable pixmap as input. Shifts every row of image data to the left or right by a certain amount. The 'shift' parameter determines
by how many pixels a row is to be shifted at most.
Another one of those effects I intended to use for MPEG tests. Unfortunately, this program will not help me here - it creates too random
patterns to be used for animations. Still, it might give interesting results on still images.
EXAMPLE
Check this out: Save your favourite model's picture from something like alt.binaries.pictures.supermodels (ok, or from any other picture
source), convert it to ppm, and process it e.g. like this, assuming the picture is 800x600 pixels:
# take the upper half, and leave it like it is
pnmcut 0 0 800 300 cs.ppm >upper.ppm
# take the lower half, flip it upside down, dim it and distort it a little
pnmcut 0 300 800 300 cs.ppm | pnmflip -tb | ppmdim 0.7 |
ppmshift 10 >lower.ppm
# and concatenate the two pieces
pnmcat -tb upper.ppm lower.ppm >newpic.ppm
The resulting picture looks like the image being reflected on a water surface with slight ripples.
SEE ALSO ppm(5), pnmcut(1), pnmflip(1), ppmdim(1), pnmcat(1)AUTHOR
Copyright (C) 1993 by Frank Neumann
16 November 1993 ppmshift(1)
Hi, i have a file like this:
A1
kdfjdljfdkljfdlf
A2
lfjdlfkjddkjf
A3
***no hit***
A4
ldjfldjfdk
A5
***no hit***
A6
jldfjdlfjdlkfjd
I want to remove the lines "***no hit*** and their above line to get an output file like this: (11 Replies)
Not my story, but interesting enough to be worth posting here IMHO. (Original is here)
The following is the 500-mile email story in the form it originally appeared, in a post to sage-members on Sun, 24 Nov 2002.:
From trey@sage.org Fri Nov 29 18:00:49 2002
Date: Sun, 24 Nov 2002 21:03:02... (3 Replies)
Hi everyone,
I know the following questions are noobish questions but I am asking them because I am confused about the basics of history behind UNIX and LINUX.
Ok onto business, my questions are-:
Was/Is UNIX ever an open source operating system ?
If UNIX was... (21 Replies)
Hi gurus,
I have a weird requirement. I need to convert the number to english lecture.
I have 1.2 ....19 numbers
I need to convert to first second third fourth, fifth, sixth...
Is there any way convert it using unix command?
thanks in advance. (8 Replies)
Hi,
Humorous UNIX Commands shows a fun way of using echo and dc to sort of obfuscate a string.
% echo 'sasb3135071790101768542287578439snlbxq'|dc
GET A LIFE!
I am just wanting to know if there is a way to sort of use dc and echo to print out an obfuscated/garbled string instead... (3 Replies)
Hi All,
Having recently started a new job, a Data Center Migration in fact I have been tasked with looking at some of the older Solaris boxes when I came across this little gem.
nismas# uname -a
SunOS nismas 5.5.1 Generic_103640-27 sun4u sparc SUNW,Ultra-1
nismas# uptime
10:37am up 2900... (2 Replies)
For any SunOS 5.XX release, it appears prior to the "login:" prompt (as if a "uname" command is run).
Would anyone know where that initial display of SunOS release comes from upon a remote login and how I can stop if from displaying?
Thank you (4 Replies)
I am trying to remove each line in which $2 is FP or RFP. I believe the below will remove one instance but not both. Thank you :).
file
12
123 FP
11
10 RFP
awk
awk -F'\t' '
$2 != "FP"' file
desired output
12
11 (6 Replies)
Hi everybody,
Which Unix base OS have best performance for HOST virtualization?
I tested SmartOS but it needs another OS to connect remotely!
Thanks in advance. (11 Replies)
I have this file:
>ID1
AA
>ID2
TTTTTT
>ID-3
AAAAAAAAA
>ID4
TTTTTTGGAGATCAGTAGCAGATGACAG-GGGGG-TGCACCCC
Add I am trying to use this script to output sequences longer than 15 characters:
sed -r '/^>/N;{/^.{,15}$/d}'
The desire output would be this:
>ID4... (8 Replies)
Hi,
I am having contents in a file like below,
cat testfile
rpool/swap
rpool/swap14
rpool/swap2
rpool/swap3
I want to sort the above contents like,
rpool/swap
rpool/swap2
rpool/swap3
rpool/swap14
I have tried in this way, (7 Replies)
Morning All
So, I am starting looking into the world of UNIX for a new job (luckily not my primary function!) and I am looking to get stared. Like anything I seem to learn best by trying things out first in an environment but I have a key question:
Currently I use Oracle VirtualBox, can... (8 Replies)