imrot(1) General Commands Manual imrot(1)Name
imrot - Rotate and/or Reflect FITS and IRAF image files
Synopsis
imrot [options] Fits or IRAF file(s)
Description
imrot is a utility for rotating and/or reflecting FITS or IRAF images. Images can be rotated only in multiples of 90 degrees. The image
may be output with a different data type than that in which it is input, and IRAF files may be written out as FITS files.
Options-a Mirror if IRAF image WCS says to -f Write FITS image from IRAF input -l Reflect image across vertical axis -o Allow overwriting of input
image, else write new one -r <angle> Image rotation angle in degrees (default 0) -s Split multi-extension FITS file -v Verbose -x <num>
Output pixel size in bits (FITS code, default=input) Allowed values are 8, 16, 32 for integers, -16 for unsigned integers, and -32 and -64
for 4- and 8-byte floating point numbers
Author
Doug Mink, SAO (dmink@cfa.harvard.edu)
6 July 2001 WCSTools imrot(1)
Check Out this Related Man Page
setpix(1) General Commands Manual setpix(1)Name
setpix - Set FITS or IRAF image values
Synopsis
setpix [-vn] file.fts [x_range y_range value] [@valuefile]
Description
Set a specified pixel or range of pixels in a FITS or IRAF image to a specified value. More than one range of pixels and values may be
specified on one command line. A file of xrange yrange value triplets may be used to set multiple regions at once. The image may be over-
written or a new image created.
Options
filename
Name of IRAF image header file or FITS file. This must be present.
@coordfile
Name of file containing lines of the format
xrange yrange value where xrange and yrange are of the format n or n-n or n,n,n or n-n,n-n and value my be integer or
floating point. value will be converted to the type of the image. If a range is 0, the entire row or column specified by the other
non-zero range will be set to the indicated value. If both ranges are zero, the entire image will be set to the specified value.
New in version 2.6.4.
xrange yrange value
Image coordinate x and y ranges and the value to which that region will be set. Either one of these triplets or a file of triplets,
specified by @filename, must be present. xrange and yrange are of the format n or n-n or n,n,n or n-n,n-n and value my be integer or
floating point. value will be converted to the type of the image. If a range is 0, the entire row or column specified by the other
non-zero range will be set to the indicated value. If both ranges are zero, the entire image will be set to the specified value.
Ranges new in version 2.6.4.
-a <number>
Add constant to pixels
-d <number>
Divide pixels by constant
-i List each line which is dropped
-m <number>
Multiply pixels by constant
-n Write the output to a new file which is named by inserting an e before the file extension. The new file is always written to the
current working directory.
-s <number>
Subtract constant from pixels
-v Print more information about the process
Author
Doug Mink, SAO (dmink@cfa.harvard.edu)
6 July 2001 WCSTools setpix(1)
I have a huge matrix file containing some 1.5 million rows and 6000 columns. The matrix looks something like this:
1 2 3
4 5 6
7 8 9
3 4 5
I want to add all the numbers in the columns of this matrix and display the result to my stdout. This means that the numbers in the first column are:
... (2 Replies)
Hi,
Just trying to get to grips with sed and awk for some reporting for work and I need some assistance:
I have a file that lists policy names on the first line and then on the second line whether the policy is active or not.
Policy Name: Policy1
Active: yes
Policy... (8 Replies)
version info :
vi availabe with RHEL 5.4
I have a text file with 10,000 lines. I want to copy lines from 5000th line to 7000th and redirect to a file. Any idea how I can do this?
Note:
The above scenario is just an example. In my actual requirement, the file has 14 million lines and I want... (9 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)
Hello,
I couldn't find an actual introduction thread, so I decided to just put this here.
I go by d0wngrade online. I have been programming in multiple languages for about 15+ years. I started with standard web design languages like HTML and CSS, but I then advanced from design to development... (2 Replies)
Hi guys...
The first active code line in AudioScope.sh is set -u .
This causes a complete exit if a variable is used/found but has not been allocated at the start of the program.
However, apart from writing code to do the task, is there a switch to to check which variables have been... (17 Replies)
Hi.
In thread https://www.unix.com/shell-programming-and-scripting/267833-grouping-counting.html rovf and I had a mini-discussion on grep and awk.
Here is a demo script that compares the awk and grep approaches for this single problem:
#!/usr/bin/env bash
# @(#) s2 Demonstrate group... (1 Reply)
Hello,
I have to fish out some specific columns from a file based on the header value. I have the list of columns I need in a different file. I thought I could read in the list of headers I need,
# file with header names of required columns in required order
headers_file=$2
# read contents... (11 Replies)
For those interested in installing dash shell on OSX Lion to help test POSIX compliancy of shell scripts, it is quite easy. I did it like this:
If you don't have gcc on your system:
0. Download and install the Command Line Tools for Xcode package from Sign In - Apple *
1. Download the dash... (2 Replies)
Hello and thanks in advance for any help anyone can offer me
I'm trying to learn the find command and thought I was understanding it... Apparently I was wrong. I was doing compound searches and I started getting weird results with the -size test. I was trying to do a search on a 1G file owned by... (14 Replies)
I have data of an excel files as given below,
file1
org1_1 1 1 2.5 100
org1_2 1 2 5.5 98
org1_3 1 3 7.2 88
file2
org2_1 1 1 2.5 100
org2_2 1 2 5.5 56
org2_3 1 3 7.2 70
I have multiple excel files as above shown.
I have to copy column 1, column 4 and paste into a new excel file as... (26 Replies)
Dear All,
Taking a break from Vue.js coding for the site, SEO and YT videos; and hopefully addressing some well deserved criticism from some here that I have been too focused on the visual aspects of the forums versus the substance and the community....
While the "current generation... (9 Replies)
Hi all...
Well guys and gals, I jumped in at the deep end and found things that PERL cannot do by default.
Many tricky terminal escape codes are not catered for so I had to create workarounds.
One thing I searched for was this:
Passing perl variable to shell command
AND, @Neo this was... (15 Replies)