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Raster Data Storage
Values may be stored as:
- Integer or
- Floating point.
In the case of floating points, pixels are representing continuous data. Remember that floating point numbers typically use up more storage space.
A raster can represent thematic data or raster images. Basically data structure is identical in both categories.
Thematic data
e.g. Land use  |
Digital elevation model  |
Raster images
Satellite images  |
Aerial fotographs  |
Orthophotos  |
Maps  |
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