“…Baboon is ignored in the 20,000bits comparison because the comparison method cannot realize the embedding capacity of 20,000 bits. When the payload is 10,000 bits, the average PSNR values of recursion-PVO are higher than [24], [26], [28] and [29] by 3.58 dB, 2.56 dB, 2.61 dB, 2.4 dB, respectively.When the payload is 20,000 bits, the average PSNR values of recursion-PVO are higher than [24], [26], [28] and [29] by 5.12 dB, 3.35 dB, 3.59 dB, and 3.36 dB.…”