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BTC Image Watermarking Technique for Copyright Protection in Real-time Communication
Author(s): 
Pages: 12-14
Year: Issue:  17
Journal: Video Engineering

Keyword:  块截短编码图像水印技术Haar小波稳健性;
Abstract: 现有BTC图像水印方案多为脆弱水印技术或数据隐藏技术,不能应用于数字图像版权保护.为保护数字电视实时通信图像版权,结合Haar小波变换,提出一种稳健的BTC域图像水印算法.算法首先对载体图像BTC域两重建电平进行Haar小波变换,然后通过修改低频系数以嵌入稳健水印.水印提取时无须原始载体图像参与.仿真实验表明,算法具有较好的水印透明性与稳健性,对通常的低通滤波、噪声叠加、亮度调整、直方图均衡、JP...
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