ppmrelief(1) General Commands Manual ppmrelief(1)NAME
ppmrelief - run a Laplacian relief filter on a portable pixmap
SYNOPSIS
ppmrelief [ppmfile]
DESCRIPTION
Reads a portable pixmap as input. Does a Laplacian relief filter, and writes a portable pixmap as output.
The Laplacian relief filter is described in "Beyond Photography" by Holzmann, equation 3.19. It's a sort of edge-detection.
SEE ALSO pgmbentley(1), pgmoil(1), ppm(5)AUTHOR
Copyright (C) 1990 by Wilson Bent (whb@hoh-2.att.com)
11 January 1991 ppmrelief(1)
Check Out this Related Man Page
pamoil(1) General Commands Manual pamoil(1)NAME
pamoil - turn a PAM image into an oil painting
SYNOPSIS
pamoil [-n N] [pamfile]
DESCRIPTION
Reads a Netpbm image as input. Does an "oil transfer", and writes the same type of Netpbm image as output.
The oil transfer is described in "Beyond Photography" by Holzmann, chapter 4, photo 7. It's a sort of localized smearing.
The smearing works like this: First, assume a grayscale image. For each pixel in the image, pamoil looks at a square neighborhood around
it. pamoil determines what is the most common pixel intensity in the neighborhood, and puts a pixel of that intensity into the output in
the same position as the input pixel.
For color images, or any arbitrary multi-channel image, pamoil computes each channel (e.g. red, green, and blue) separately the same way as
the grayscale case above.
At the edges of the image, where the regular neighborhood would run off the edge of the image, pamoil uses a clipped neighborhood.
OPTIONS -n size
This is the size of the neighborhood used in the smearing. The neighborhood is this many pixels in all four directions.
The default is 3.
SEE ALSO pgmbentley(1), ppmrelief(1), ppm(5)AUTHOR
Based on pgmoil Copyright (C) 1990 by Wilson Bent (whb@hoh-2.att.com)
Modified to ppm by Chris Sheppard, June 25, 2001
Modified to pnm, using pam functions, by Bryan Henderson June 28, 2001.
25 June 2001 pamoil(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)