Benchmarking for SARI Image Authentication System

Lexing Xie, Kurato Maeno, Qibin Sun, Ching-Yung Lin, Shih-Fu Chang


In order to evaluate the performance of SARI image authentication system under common image storage, transmission and processing scenarios, the following test is basically performed from a consumer's perspective. The issues of interest are: image quality after watermark embedding, robustness of authentication bits to JPEG compression, authentication sensitivity to malicious manipulation such as crop-and-replace, as well as widely-used but not directly oriented image processing methods such as low pass and median filtering, noise, brightness and contrast change, etc. This test will also help to further improve SARI system or develop extended authentication schemes for multimedia.