ppmquantall(1) General Commands Manual ppmquantall(1)NAME
ppmquantall - run ppmquant on a bunch of files all at once, so they share a common colormap
SYNOPSIS
ppmquantall [-ext extension] ncolors ppmfile ...
DESCRIPTION
Takes a bunch of portable pixmap as input. Chooses ncolors colors to best represent all of the images, maps the existing colors to the new
ones, and overwrites the input files with the new quantized versions.
If you don't want to overwrite your input files, use the -ext option. The output files are then named the same as the input files, plus a
period and the extension text you specify.
Verbose explanation: Let's say you've got a dozen pixmaps that you want to display on the screen all at the same time. Your screen can
only display 256 different colors, but the pixmaps have a total of a thousand or so different colors. For a single pixmap you solve this
problem with ppmquant; this script solves it for multiple pixmaps. All it does is concatenate them together into one big pixmap, run
ppmquant on that, and then split it up into little pixmaps again.
(Note that another way to solve this problem is to pre-select a set of colors and then use ppmquant's -map option to separately quantize
each pixmap to that set.)
SEE ALSO ppmquant(1), ppm(5)AUTHOR
Copyright (C) 1991 by Jef Poskanzer.
27 July 1990 ppmquantall(1)
Check Out this Related Man Page
ppmquantall(1) General Commands Manual ppmquantall(1)NAME
ppmquantall - run ppmquant on a bunch of files all at once, so they share a common colormap
SYNOPSIS
ppmquantall [-ext extension] ncolors ppmfile ...
DESCRIPTION
Takes a bunch of portable pixmap as input. Chooses ncolors colors to best represent all of the images, maps the existing colors to the new
ones, and overwrites the input files with the new quantized versions.
If you don't want to overwrite your input files, use the -ext option. The output files are then named the same as the input files, plus a
period and the extension text you specify.
Verbose explanation: Let's say you've got a dozen pixmaps that you want to display on the screen all at the same time. Your screen can
only display 256 different colors, but the pixmaps have a total of a thousand or so different colors. For a single pixmap you solve this
problem with ppmquant; this script solves it for multiple pixmaps. All it does is concatenate them together into one big pixmap, run
ppmquant on that, and then split it up into little pixmaps again.
(Note that another way to solve this problem is to pre-select a set of colors and then use ppmquant's -map option to separately quantize
each pixmap to that set.)
SEE ALSO ppmquant(1), ppm(5)AUTHOR
Copyright (C) 1991 by Jef Poskanzer.
27 July 1990 ppmquantall(1)
hi...
i have a big problem, and i don't know how to solve it.
here is the thing: i have 12 files, which are flat files, with several records(lines), and each record has 3 fields, wich are separated by pipe (|), something like this:
file 1:
33|12|2000
33|22|3000
66|24|3000
99|48|4000... (7 Replies)
Hello guys, I need some help to solve a little problem that I have here:
I have a big file with almost 100.000 lines of data, here is an example of line:
100099C01101C00000000059399489283CREMOVISTAR_TX 010001C00000000000099069799MOVISTAR_Tx ... (7 Replies)
I have a file process.txt
I wanted to just grab data in "process" column.
Name process process_id status
Adminserver adminserver 22669 Running
Browser Engine browserengine ... (7 Replies)
Hy!
I have some problem. Problem is that i don't now how to solve problem of average lines of files in a directory.
I have managed to get number of files in a directory, but i don't know the command to count average lines of these files.
I have one "for" loop that goes true whole... (13 Replies)
When I do a file list in my spooler directory, I get the following
information
#ls -l |pg
-rw-rw-rw- 1 user1 ugroups 831690 Apr 03 12:52 K6A80403125051.prn :res 2330479869879093344 ext 2330477052380546512 align
-rw-rw-rw- 1 user1 ugroups 5900 Apr 03 14:19 K6A80403141858.idx :res... (8 Replies)
Hello everyone
Had a problem booting Fedora. I installed it as a server without any desktop environment(kde, gnome) except for X. Problem is when i booting system after it loads kernel suddenly screen messes up with parts of fedora graphics(it's not clear but you can see it -... (8 Replies)
I've gone through bunch of threads on time calculations but none of them helps on my problem
I've to get the time difference in HHMM format from following inputs
Input 1 :
01/08/2010 01:30
01/08/2010 03:20
Input 2 :
01/06/2010 22:00
01/07/2010 16:00
First input is easy but... (8 Replies)
How would I get a total of a wildcard of files from the 'du' command?
du -s *.pdf
Result:
736 11mens_bracket.pdf
64 2011_NIT_Bracket_3_13_11.pdf
80 Doing more with Less part1.pdf
1064 Doing more with Less part2.pdf
28 Parkview_1309_Garage.pdf
3964 statsheet-bracket-2011.pdf
Expected... (7 Replies)
Hi,
I have a problem that I am trying to solve and would greatly appreciate some input to solve this. I have a file containing variable length of line. Each line in the file has values separated by "," and i need to grep for these values in a some files. For example below is a sample file with 3... (12 Replies)
I have a bunch of files in various folders. I want to go through each of them and display certain lines in a particular format
All files have a similar format
Date:
Time:
User:
Message:
Miscellaneous:
(and some other stuff)I want to display to only the "Date:", "Time:" "User:" lines in... (7 Replies)
Hi friends,
I have file as follow
D1 pin16I pin20I
R1 pin20F pin20D
VCC1 pin20A pin16G
I want to modify it second and third column.
I want to just change the last character of 2nd and 3rd column with some condition.
The condition is if last char of second column is in... (7 Replies)
Hello guys,
I have a problem. I'm trying to use SDiff with two files which are containing spaces.
My problem is that I want to save the output with > in an extra file.
If I try to use it like this.
sdiff "test file1" "test file2" > OutputfileI get this message:
usage: diff ... (11 Replies)
Hi All,
I have a UNIX script which reads "PxyType" (read PxyType) as input from user and a file (eg : "File.json") with the list all PxyType's.
Based on the user input for "PxyType" in "File.json", I want to redirect each matched line to a different file ("File1,2,3,..json").
Can you... (7 Replies)
good morning friends
I have a problem
, I have a file with 2 million records, but that can be variable, I need to split that file and drop several files in 500,000 thousand records, someone can help me with some unix shell code
thank you!!! (7 Replies)