Why should remote sensing images be classified? What problems can classification solve?

1. The information recorded by remote sensing images is the electromagnetic radiation information of different wave bands of ground objects.

2. The same object will have different radiation performance in different bands.

3. Features with the same radiation performance are not necessarily the same type of features.

4. Remote sensing image classification is actually to classify the radiation quantity and characteristics of ground objects, and try to find out the ground objects with the same, similar or similar radiation characteristics.

5. Then, according to other data, judge the physical characteristics or natural phenomena of ground objects recorded or expressed in remote sensing images.