OnWorks favicon

mDiff - Online in the Cloud

Run mDiff in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command mDiff that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator



mDiff - Calculates the difference between a pair of overlapping images


mDiff [-d level] [-n(o-areas)] [-s statusfile] in1.fits in2.fits out.fits template.hdr


mDiff calculates a simple difference between a single pair of overlapping images. This is
meant for use on reprojected images where the pixels already line up exactly. mDiff
analyzes an image metadata table to determine a list of overlapping images. Each image is
compared with every other image to determine all overlapping image pairs. A pair of
images are deemed to overlap if any pixel around the perimeter of one image falls within
the boundary of the other image.


-d level
Turns on debugging to the specified level (1-4).

-n No-area-images flag. Creates difference image without requiring pixel area FITS

-s statusfile
Output and errors are sent to statusfile instead of to stdout


First input FITS file. (Also needs area image in1_area.fits, or use -n flag)

Second input FITS file.(Also needs area image in2_area.fits, or use -n flag)

Difference FITS image to be generated.

FITS header template used to generate output image.


FITS image and area image representing the difference in the overlap region.


OK [struct stat="OK"]

ERROR Cannot open status file: statusfile

ERROR Images don't overlap

ERROR All pixels are blank

ERROR Template file not found

ERROR FITS library error

ERROR general error


$ mDiff proj/in1.fits proj/in2.fits output/diff.fits template.hdr
[struct stat="OK"]

Use mDiff online using onworks.net services

Free Servers & Workstations

Download Windows & Linux apps

  • 1
    Image Downloader
    Image Downloader
    Crawl and download images using
    Selenium Using python3 and PyQt5.
    Supported Search Engine: Google, Bing,
    Baidu. Keywords input from the keyboard
    or input from ...
    Download Image Downloader
  • 2
    Eclipse Tomcat Plugin
    Eclipse Tomcat Plugin
    The Eclipse Tomcat Plugin provides
    simple integration of a tomcat servlet
    container for the development of java
    web applications. You can join us for
    Download Eclipse Tomcat Plugin
  • 3
    WebTorrent Desktop
    WebTorrent Desktop
    WebTorrent Desktop is for streaming
    torrents on Mac, Windows or Linux. It
    connects to both BitTorrent and
    WebTorrent peers. Now there's no
    need to wait for...
    Download WebTorrent Desktop
  • 4
    GenX is a scientific program to refine
    x-ray refelcetivity, neutron
    reflectivity and surface x-ray
    diffraction data using the differential
    evolution algorithm....
    Download GenX
  • 5
    PSPP is a program for statistical
    analysis of sampled data. It is a free
    replacement for the proprietary program
    SPSS. PSPP has both text-based and
    graphical us...
    Download pspp4windows
  • 6
    Git Extensions
    Git Extensions
    Git Extensions is a standalone UI tool
    for managing Git repositories. It also
    integrates with Windows Explorer and
    Microsoft Visual Studio
    (2015/2017/2019). Th...
    Download Git Extensions
  • More »

Linux commands