Abstract:

 According to the different requirement of different applied fields of steganalysis, this paper proposes
a steganalysis algorithm comprehensive evaluation method based on combination weight and TOPSIS.
The method contains five performance indexes including true positive rate, false positive rate, reliability, detection
error and detection speed. First, the entropy weight is put forward to give weights, then considering
the defect of entropy weight and the estimator’s experience and intent, the AHP is used to give subjective
weights, then the final weights are given by assembled weighting method. The evaluation and comparison
to performance of steganalysis algorithm are implemented by using TOPSIS algorithm. Experimental results
show that the evaluation algorithm can not only be applied to choose the best steganalysis method aim to
different requirements of each index in different applications, but also can conduct to improve the steganalysis
algorithm.

Key words: steganalysis, performance comprehensive evaluation, entropy weighted method, analytic hierarchy process, technique for order preference by similarity to ideal solution (TOPSIS)