caa a22 4500 60624378X CHVBK 20210128101326.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s12596-014-0226-5 doi (NATIONALLICENCE)springer-10.1007/s12596-014-0226-5 Image encoding and watermarking in the double random phase encoding scheme with sparse representation strategy [Elektronische Daten] [Yi Qin, Qiong Gong, Aihua Wang] A novel method for image encoding and watermarking is proposed in this paper. It is shown that the security of the double random phase encoding (DRPE) scheme could be improved by watermarking the encoded image with a simple approach, which derives from the sparse representation strategy. The watermarked ciphertext is demonstrated to be stationary white noise, as a result of which the watermark hidden in the watermarked ciphertext is hard to be perceived. In addition, the watermark is also robust against noise and occlusion attacks. Both mathematical analysis and simulations are presented to illustrate the system performance. The Optical Society of India, 2014 Image encryption nationallicence Watermarking nationallicence Sparse representation nationallicence Double random phase encoding nationallicence Qin Yi College of physics and electronic Engineering, Nanyang Normal University, 473061, Nanyang, People's Republic of China aut Gong Qiong College of physics and electronic Engineering, Nanyang Normal University, 473061, Nanyang, People's Republic of China aut Wang Aihua College of physics and electronic Engineering, Nanyang Normal University, 473061, Nanyang, People's Republic of China aut Journal of Optics Springer India 44/1(2015-03-01), 45-52 0972-8821 44:1<45 2015 44 12596 https://doi.org/10.1007/s12596-014-0226-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s12596-014-0226-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Qin Yi College of physics and electronic Engineering, Nanyang Normal University, 473061, Nanyang, People's Republic of China aut NATIONALLICENCE 700 1- Gong Qiong College of physics and electronic Engineering, Nanyang Normal University, 473061, Nanyang, People's Republic of China aut NATIONALLICENCE 700 1- Wang Aihua College of physics and electronic Engineering, Nanyang Normal University, 473061, Nanyang, People's Republic of China aut NATIONALLICENCE 773 0- Journal of Optics Springer India 44/1(2015-03-01), 45-52 0972-8821 44:1<45 2015 44 12596