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audio watermarking using spread spectrum
test_main
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一种基于DCT的扩频水印算法,本算法通过对水印信息进行扩频,在原始载体图像的DCT域内进行水印嵌入。-DCT-based spread spectrum watermarking algorithm, the algorithm is spreading through the watermark information in the original carrier image of the DCT domain for watermark embedding.
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基于扩频的数字水印技术,水印信息分布于载体作品的多个频率系数,每个频率系数上负荷的水印能量很小,平衡水印的鲁棒性和不可感知性上的矛盾。-Digital watermarking based on spread spectrum technology, the watermark is found in a number of frequency coefficient vector works, each frequency coefficient on the load of the wate
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水印嵌入 扩频算法 使用了空域算法 实现水印嵌入-Watermark embedding algorithm uses the spatial spread spectrum watermark embedding algorithm
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本文算法是将24 位真彩图的亮度分量分块
DCT ,然后利用DCT 量化系数的奇偶特性嵌入8
位灰度水印图,并通过PN 序列加密来保证水印的
安全性。算法中,将灰度图像转换为二进制数据
流,置乱后扩频调制,隐藏在宿主DCT 系数量化值
中,提取时不需要宿主信号,实现水印信号的盲提
取。-This algorithm is 24-bit true color pictures of the luminance component of block DCT, quantiza
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基于小波变换的扩频图象数字水印,将水印嵌入到小波中。以保证信息的安全-Spread spectrum based on wavelet transform image watermarking, the watermark is embedded into the wavelet. To ensure information security
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One of the threats to watermarking security is unauthorized removal. In this paper, we present a framework based on extended TPM to solve this problem. As to the spread spectrum (SS) watermarking schemes we believe that it has the capability of read-
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One of the threats to watermarking security is unauthorized removal. In this paper, we present a framework based on extended TPM to solve this problem. As to the spread spectrum (SS) watermarking schemes we believe that it has the capability of read-
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Speech Based Watermarking for Digital Images
This paper presents a novel scheme of
watermarking of digital images for copyright protection and
authentication. In this paper we proposed a method of
embedding owner’s speech signal. Speech being
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In this paper we proposed a method of
embedding owner’s speech signal. Speech being a biometric data,
the watermark signal in this method is expected to be more
meaningful and has closer correlation with copyright holder.
The main issue of co
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实现直接序列扩频水印的嵌入与提取。基于待嵌入消息生成二进制水印序列,生成扩频码,用消息序列调制生成水印序列。依次处理灰度图像的每一个载体图像像素,根据相应位置 水印序列完成嵌入修改。(Realize the embedding and extraction of direct sequence spread spectrum watermark. The binary watermark sequence is generated based on the message to be embed
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