image processing
  • The use of computer-based techniques to distinguish data about astronomical objects from its surroundings. Astronomers use image processing methods of great power, related to those used by geophysicists, telecommunications engineers, spies and others.
  • The input, analysis, manipulation, storage, and output of images. For example, pictorial information obtained by scanning is followed by an analog to digital conversion. Then, this data is modified, color enhancements may be made, for instance, and finally the image is stored, printed, or displayed. Such processing helps make images more suitable for a desired purpose, and are used, for example, in satellite weather maps, or by robotic image input devices.

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