CAJ | 학술논문

提出了一种基于离散分数傅里叶变换(DFRFT)的SVG图形水印算法,用于SVG的版权保护.将水印嵌入到SVG图形控制点坐标构造的复数信号的离散分数傅里叶变换频谱中.经实验结果验证,该算法具有较强的透明性,对于通常的图形几何变换以及局部修改攻击,均有令人满意的鲁棒性.
제출료일충기우리산분수부리협변환(DFRFT)적SVG도형수인산법,용우SVG적판권보호.장수인감입도SVG도형공제점좌표구조적복수신호적리산분수부리협변환빈보중.경실험결과험증,해산법구유교강적투명성,대우통상적도형궤하변환이급국부수개공격,균유령인만의적로봉성.
The authors of this paper present a new method of digital watermarking of scalable vector graphics based on discrete fractional Fourier transform to protect its authority.The watermark is embedded in the discrete fractional Fourier transform spectrum of complex signal constructed by control points.Both high invisibility and robustness to some common manipulations and local modification,have been proved by experimental results.