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Geospatial Development By Example with Python by Pablo Carreira

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Processing remote sensing images and data

Satellite images come in a different format and serve different purposes. These images can be used to visualize features on Earth using real colors or they may be used to identify a variety of characteristics using parts of the spectrum invisible to the human eye.

As we saw, our sample image had three channels (blue, green, and red) that were combined in a single file to compose a real color image. Different from the sample image, most satellite data comes with each channel separated into a file for each one of them. These channels are called bands and comprise of a range of the electromagnetic spectrum visible or not to the human eye.

In the following examples, we are going to use the digital elevation ...

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