When to correct
The table below indicates the types of corrections that must be applied depending on the desired end use for your image.
Type of use | Geometric correction | Radiometric correction | Atmospheric correction* | Other corrections** |
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Wall hanging / quick look | ![]() |
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Link to field, spatial, GIS data | ![]() |
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Biophysical maps e.g. Temperature | ![]() |
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Link to field reflectance data, change detection | ![]() |
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Improved accuracy of above | ![]() |
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* Atmospheric correction can be relative (dark pixel correction) or absolute (physics based correction).
** Other corrections include removal of bi-directional reflectance, sun glint and cross track illumination.
Reference:
Jensen, J. R. (2005). Introductory digital image processing: a remote sensing perspective. Third edition, Prentice Hall: 316.