A joint image encryption and watermarking algorithm based on compressive sensing and chaotic map*
Xiao Di, Cai Hong-Kun, Zheng Hong-Ying†
       
For compressive ratio p = 0.27, the reconstructed Lena images respectively with α = 50 (a), 200 (b), 350 (c), 500 (d) and their PSNR = 24.0 (a), 17.4 (b), 15.2 (c), and 11.9 (d) (dB).