Security and Communication Networks / 2017 / Article / Tab 3

Research Article

A Cloud-User Protocol Based on Ciphertext Watermarking Technology

Table 3

Test attacks.

JPEG compressionQF = 25QF = 8QF = 5
GFsigma = 0.3sigma = 1sigma = 4
WGNPSNR = 18PSNR = 16.75PSNR = 16.41

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