Abstract: A soft demarcation method based on the fuzzy clustering theory was proposed, which is better than the former classification methods. As an example, the fuzzy clustering of ISODATA was used to classify the optical camouflage effectiveness. The model and the algorithm of the optical camouflage effectiveness classification were established and analyzed. The effectiveness classification was achieved and the index values for each class were finally determined.

Key words: systematic estimation and feasibility analysis , the class of camouflage effectiveness , camouflage ef?fectiveness classification , the fuzzy clustering of iterative self-organizing data analysis technique