Image enhancement

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Image enhancement

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Image from a ground based telescope

• The next slide shows an image of the same source.

3
Image taken by the Hubble Space Telescope

• This image shows that there is a cluster of
  stars that could not be seen clearly with the
  ground based telescope. The sharpness and number
  of stars detectable are both much improved. Also,
  a larger number of faint stars can be detected.

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Image before sharpening

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Image after sharpening

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Image of a crater courtesy of NASA

• The next slide shows a processed version of the
  same image

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Contour lines have been added to the crater image

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Seafloor image

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Contour map of seafloor

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Acnowledgements

• Images taken from Computer Screens 20S, 30S and
  40S of Chapter 1 Imaging, Advancing Physics
  CD-ROM 2008 Institute of Physics
• PowerPoint slides compiled by John Mascall of The
  Kings School, Ely