Mangroves II—Change Mapping
摘要
The purpose of this chapter is to present two methods of land cover extent change detection: map-to-map and map-to-image using anomaly data. In a map-to-map approach, changes are extracted by subtracting a two-date pair of land cover extent maps: that is, time 2 (T2) extent minus time 1 (T1) extent. By comparison, a map-to-image approach uses a baseline extent map within which changes are calculated based on a T2 image where the change classes are defined by threshold values.