Preparing Colorful Astronomical Images III: Cosmetic Cleaning

Details Preparing Colorful Astronomical Images III: Cosmetic Cleaning Preparing Colorful Astronomical Images III: Cosmetic Cleaning

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...20311815f&link_type=abstract

American Astronomical Society Meeting 203, #118.15; Bulletin of the American Astronomical Society, Vol. 35, p.1404

Computer Science

Graphics

Scientific paper

We present cosmetic cleaning techniques for use with mainstream graphics software (Adobe Photoshop) to produce presentation-quality images and illustrations from astronomical data. These techniques have been used on numerous images from the Hubble Space Telescope when producing photographic, print and web-based products for news, education and public presentation as well as illustrations for technical publication. We expand on a previous paper to discuss the treatment of various detector-attributed artifacts such as cosmic rays, chip seams, gaps, optical ghosts, diffraction spikes and the like. While Photoshop is not intended for quantitative analysis of full dynamic range data (as are IRAF or IDL, for example), we have had much success applying Photoshop's numerous, versatile tools to final presentation images. Other pixel-to-pixel applications such as filter smoothing and global noise reduction will be discussed.

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