On the hybrid multi-watermarking
Signal Processing
On multiwatermarking in cloud environment
Concurrency and Computation: Practice & Experience
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A multiple watermarking algorithm based on the Code Division Multiple Access (CDMA) technique is presented. According to the multiple accessing technique of the CDMA system, multiple copyright identifiers are embedded into digital images. Performance evaluation of this multiple wa- termarks system are presented. This paper proposed a anal- ysis of multiple watermarks system capacity. When two wa- termarks are embedded in an image at the same time, the capacity is larger than the capacity when the single water- mark is embedded, and is smaller than the sum of the capac- ity of two watermarks are embedded respectively. Bit error rate (BER) performance of multiple watermarks system is also evaluated.