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** |
|---|---|---|---|---|
| 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 bidirectional reflectance, sun glint, cross track illumination, water interface, and depth correction.
Reference:
Joyce, K., Phinn, S. and Roelfsema, C. (2005) The Costs and benefits of image acquisition and pre-processing for coral reef remote sensing. Backscatter - Journal of the Alliance for Marine Remote Sensing, 16(1):23-26.