Monitoring Regional Urban Dynamics Using DMSP/OLS Nighttime Light Data in Zhejiang Province

Table 1

Overall accuracy and kappa coefficient of different extraction methods.

Method	Overall accuracy (%)	Kappa coefficient
Mutation detection	83.7427	0.6892
Scale-based threshold	90.5186	0.8514
NSA	85.7964	0.7626
Edge detection	93.1409	0.8755
SVM	89.3865	0.7830