Watermark Embedding for Direct Binary Searched Halftone Images by Adopting Visual Cryptography

作者：Wang, Yangyang; Ni, Rongrong^*; Zhao, Yao; Xian, Min

来源：Computers Materials & Continua, 2018, 55(2): 255-265.

DOI：10.3970/cmc.2018.01732

• Data hiding
• halftone
• direct binary search
• visual watermark

In this paper, two methods are proposed to embed visual watermark into direct binary search (DBS) halftone images, which are called Adjusted Direct Binary Search (ADBS) and Dual Adjusted Direct Binary Search (DADBS). DADBS is an improved version of ADBS. By using the proposed methods, the visual watermark will be embedded into two halftone images separately, thus, the watermark can be revealed when these two halftone images are overlaid. Experimental results show that both methods can achieve excellent image visual quality and decoded visual patterns.

• 出版日期2018-5
• 单位北京交通大学