A blind digital image watermarking algorithm in DCT domain is proposed.
提出了一种DCT域的数字图像盲水印算法。
Two blind watermark algorithms based on HVS in DCT domain are proposed.
提出了DCT变换域上基于人类视觉特性（HVS）的两种盲水印添加方法。
In this paper, a new robust public watermarking in DCT domain is proposed.
提出了一种新的基于DCT的鲁棒公开水印算法。
Secondly, the author puts forward a Blind Watermarking Algorithm basing on DCT Domain and Chaos.
提出了一种基于混沌的DCT域盲数字水印算法。
The second new scheme is a adaptive watermarking techniques for digital images based on DCT domain.
提出的第二种新计划是基于DCT域的一种自适应数字图像水印技术的计划。
The article proposes an improved LSB watermarking algorithm based on the DCT domain and the RS correction.
本文提出了一种基于DCT变换域的用改进LSB算法嵌入带rs纠错码的数字水印方法。
Present an audio information segmental adaptive embedding scheme in DCT domain and test the validity of this scheme.
提出了一种DCT域音频信息的分段自适应嵌入方案，并用实验证明了方法的有效性。
In this paper, a new embedding strategy and an algorithm applying the strategy for watermarking in DCT domain is proposed.
本文提出了一个DCT域隐形水印的嵌入对策和一个应用该对策的自适应水印算法。
Then by selecting out the uniform parts in the DCT domain, the direct current encodes directly without any fractal matching.
基于人眼视觉系统选择平坦块，选择出DCT域中的均匀部分，直接将其直流部分编码输出，不需分形匹配。
A new choice approach for embeddable position of audio watermarking scheme in the DCT domain based on research of IDCT maximum error modal is proposed.
本文在DCT最大误差模型研究的基础上提出了一种新的音频水印嵌入位置选择策略。
Based on the features of human visual system (HVS) a new watermarking algorithm that combines spatial and DCT domain is proposed for digital images in this paper.
本文基于人类视觉系统(HVS)的特性，提出了一种结合空间域和DCT变换域的数字水印新算法。
Based on this, the paper proposes a double watermarking algorithm based on DCT domain that the coexistence of robust and fragile digital watermarking can be achieved.
基于这个不变的数字特征，本文提出了种基于图像DCT域的鲁棒性水印和脆弱性水印共存的双水印算法。
We firstly overview the properties of fractal coding in image domain, then we derive the corresponding formula of scaling factor and offset of affine transform in DCT domain.
首先，综述了图像域中分形编码的特性，然后导出在离散余弦变换(简称DCT)域中仿射变换的伸缩因子和偏移量的对应公式。
A hybrid structure of performing horizontal DCT domain down conversion and vertical spatial domain down conversion was presented for down converting the spatial resolution of MPEG-2 video.
对MPEG - 2视频编码流空间分辨率下变换已提出了一种在水平方向上进行DC T域下变换，而在垂直方向上采用空间域下变换的方法。
On the basis of the characteristics of MP3 compression and local audio correlation, a new adaptive digital audio watermarking in DWT and DCT domain for protecting MP3 music copyright is proposed.
以mp3压缩攻击特点与听觉掩蔽特性为基础，提出了一种可用于MP3音乐作品版权保护的混合域数字音频盲水印算法。
At the same time, the algorithm is combined with the video compressing standards, and embeds the information in the coefficient of the sub-low frequency in DCT domain, which improves the robustness.
同时算法与视频压缩算法相结合，在DCT域的次低频系数中嵌入信息，提高其鲁棒性。
In this paper, a block based adaptive watermarking technique in DCT domain that is similar to the public key system is proposed in light of the cryptography technique and image processing technique.
结合加密技术与图像处理算法，提出了一种类似于公开密钥体制的基于分块dct变换的数字图像自适应水印算法。
Variable characteristics were captured in discrete cosine transform (DCT) domain of JPEG images and from their decompressed versions with these functions.
这些函数从JPEG图像离散余弦变换(DCT)域及其解压图像所在空域中提取易变特征。
There are two main transform domain methods, one is to use the discrete cosine transformation (DCT); the other would be the use of discrete wavelet transforms (DWT).
目前主要有两种变换域方法，一种是使用离散余弦变换(DCT)，另一种是使用离散小波变换(DWT)。
The chaotic mapping enables the logo pixels rearrange randomly in the specified spatial domain, and the mixed bits of the logo were embedded in the image DCT coefficients.
使用混沌映射将二进制商标的像素在空间区域中进行随机置乱，然后将置乱的信息分块嵌入在图像的DCT变换系数中。
The frequency domain algorithm adopts the common and information - rich gray level image as a watermark, which achieves the collaborative advantages of combining the DWT and DCT.
该频域算法采用更常见的含信息量丰富的灰度图像作为水印，结合离散小波变换和离散余弦变换的共同优点。
This method compares the few low frequency DCT transform coefficients of the range blocks and domain blocks to find out the matched domain block.
通过图像块与相似块在DCT变换域少数低频系数的比较，来确定匹配的相似块。
Since the traditional coding technology for image and video is using of DCT, the blocked and whole DCT technology in frequency domain was used in order to embed watermarking.
由于以前的图像和视频编码标准采用DCT编码，在变换域嵌入水印大多使用分块或整体DCT技术。
The image damage by transform coefficients quantization in ID-DCT transform compression coding is analysed on frequency domain and space domain. Some useful results are obtained.
本文对一维DCT变换压缩编码中变换域系数二次量化引起的图象损伤进行了频域和空间域分析，得出了一些有用的结论。
The technology of video stream transcoding can be divided into two types: spatial domain(pixel-domain) and compressed domain(DCT-domain).
目前的视频流转码大致可以分为空域（像素域）转码和压缩域（DCT域）转码两种方法。
Two kinds of digital watermark methods about image based on DCT and DWT in frequency domain were mainly researched in this article.
本文主要研究了变换域中基于DCT和DWT的两种图像数字水印方法。
The rest are inserted in non-LSB bits in spatial domain of the DCT-watermarked image.
非重要水印则嵌入含水印图像空域的非LSB位。
A DCT-domain watermarking algorithm with 8 bits gray image's watermark is proposed.
提出了一个以8位灰度图像作为水印的DCT域水印算法。
A DCT-domain watermarking algorithm with 8 bits gray image's watermark is proposed.
提出了一个以8位灰度图像作为水印的DCT域水印算法。
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