Table 6.

Comparison scenarios.

Comparison scenario	Description
C1	Use the weighted path method. Compare the results of the case where the weighting parameters are known with the case using default weighting parameters. The default weights for the three attributes are set as: most important = 0.6, important = 0.3, least important = 0.1
C2	Use the proposed JND method. Compare the results of the case where the JND are known with the case using default JND values. The default JND for the three attributes are all set as 0.3.
C3	Cross comparison. Compare the results from the JND method using default JND values, with the results from the weighted path using known weights.
C4	Cross comparison. Compare the results from the weighted path method using default weights with the results from the JND method using known JND values