期刊
MULTIMEDIA TOOLS AND APPLICATIONS
卷 78, 期 19, 页码 26885-26905出版社
SPRINGER
DOI: 10.1007/s11042-017-4362-1
关键词
Reversible watermarking; 2D CAD engineering graphics; Iterative embedding; Virtual coordinate
类别
资金
- National Natural Science Foundation of China [61370225, 61572182]
- Hunan Provincial Natural Science Foundation of China [15JJ2007]
- Scientific Research Plan of Hunan Provincial Science and Technology Department of China [2014FJ4161]
Aim to authenticate the integrity of 2D CAD engineering graphics, a reversible watermarking method based on iterative embedding and virtual coordinates is proposed. For each vertex in 2D CAD engineering graphics, two neighboring virtual coordinates are generated to form an embedding data unit, which is good for the improvement of the correlation of them. Meanwhile, iterative embedding policy is implemented to enhance the capacity. Experimental results and analysis show that it is strictly reversible, and the capacity is positive proportion to the embedding times. Meanwhile, the distortion can be well controlled in a small range, and it is robust against translation and scaling. It has potential application in the integrity protection of 2D CAD engineering graphics with low correlation and high data precision requirements.
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