Einstein-Face (CASA 3.2): Difference between revisions
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'''Simulations using non-science images: the face of Einstein | '''Simulations using non-science images: the face of Einstein | ||
''' | ''' | ||
Simdata can be used to simulate any digitized image. In this example, we use the face of Albert Einstein. | Simdata can be used to simulate any digitized image. In this example, we use the face of Albert Einstein. | ||
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'''Step 2:''' Convert your image to FITS | '''Step 2:''' Convert your image to FITS | ||
Various software programs have | Various software programs have conversion to FITS enabled. The ([http://www.gimp.org GIMP]) was used in this case. | ||
A handy list of FITS conversion programs is maintained by GSFC [http://fits.gsfc.nasa.gov/fits_viewer.html here] | |||
For the GIMP, start up the software | |||
>gimp & | |||
and in the main window select "Open" from the "File" menu. | |||
The image will open up in a new window, you can use the GIMP to modify | |||
the image (adjust contrast, colormap etc). | |||
Then, select "Save as" from the "File" menu in the window containing the image, | |||
Revision as of 20:02, 9 February 2011
Simulations using non-science images: the face of Einstein Simdata can be used to simulate any digitized image. In this example, we use the face of Albert Einstein.
Step 1: obtain your image. Typically from the internet.
In this case, it is a jpg file.
Step 2: Convert your image to FITS
Various software programs have conversion to FITS enabled. The (GIMP) was used in this case. A handy list of FITS conversion programs is maintained by GSFC here
For the GIMP, start up the software
>gimp &
and in the main window select "Open" from the "File" menu.
The image will open up in a new window, you can use the GIMP to modify the image (adjust contrast, colormap etc).
Then, select "Save as" from the "File" menu in the window containing the image,
