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- By discrete cosine transform(DCT), still image compression coding technique, and human visual system (HVS), the 2-dimensional digital watermark (gray image) is embedded adaptively into the color host image. 以离散余弦变换 (DCT)、静态图像压缩编码、人眼视觉特性 (HVS)为基础 ,提出一种将灰度图像 (即二维数字水印 )嵌入到原始彩色图像中的新数字水印算法 该算法具有以下特点 :(1)应用静态图像压缩编码技术实现了以二维数字水印作为水印信号的数字水印算法 ;
- color host image 彩色栽体图像
- So that, we propose a novel scheme to define the lattice structure of color space of host image for embedding watermark data. 也就是我们提出一个新的方案,定义原始影像彩色空间的晶状结构来藏匿浮水印的资料。
- The watermarked host image can be printed on print products by use of printer or digital printing machine. 通过打印或数字印刷技术可以将含水印图像印制在证件等印刷品中；
- You must install the SVT to access these drivers, and to use the integrated Host Image Processing software, known as HIPPO. 您必须安装SVT以存取这些驱动程序及使用称为HIPPO的集成主机影像处理软件。
- Experimental results have showed that the proposed algorithms can ensure watermark visibility and the loss in host image become less. 实验结果表明，该算法在保证水印具有较好可见性的同时，载体图像内容得到了保持。
- The embedding procedure is based on quantifying the DCT coefficients of origin image and detecting procedure need not origin host image. 嵌入方法采用一种基于量化原始载体图像的 DCT变换系数的数字水印嵌入方法 ,提取水印时不需原始载体图像
- By conjunction with human visual model,it embeds watermarks to middle band in the DCT domain and keeps invisibility of watermark in host image. 提出了一种基于DCT的图像水印算法,该算法充分利用人眼视觉系统特性,把水印嵌入DCT中频域中。
- A new digital watermarking algorithm based on BPN neural network is proposed.Watermark embed processing is carried out by transforming the host image in four band wavelet domain. 摘要提出了一种基于BPN神经网络的水印新算法，首先对数字图像进行四进制小波分解；
- Information Steganography Algorithm Based on Wavelet Transform is that low-frequency ingredient of watermark is embedded in low-frequency part of host image . 基于小波变换的信息隐写算法是把水印图象的低频成分嵌入到原始宿主图象的低频部分，其抗攻击能力和隐藏能力强，提取的水印图象质量良好。
- The experimental results show that the watermarked image generated by this algorithm maintains both the quality of the host image and details of the visible watermark. 实验结果表明，本算法生成的含水印图像既可保持宿主图像的质量，又能使可见水印细节可见；
- We utilize the histograms of various properties that calculated from the host image, and partition each histogram space into several divisions with dynamic interval. 我们藉由计算影像不同特性的长条分布图,并将其分布图等份切割为众多动态区间。
- The meaningful gray image is serially processed into watermark signal and embedded into the DC elements of the block DCT coefficient matrix of the host image. 该算法是先对有意义的灰度图像进行水印序列化处理后,再将其作为水印信号嵌入到载体图像的分块DCT系数直流分量里。
- That's rather an effective use of color. 这种使用颜色的手法效果相当好。
- A new method which successfully combines the characteristics of singular val- ues and variance is developed to preprocess the host image to obtain two sub-images with different masking effect. 综合利用奇异值和方差的特征来对宿主图像进行预处理之后,提取出两个具有不同掩蔽效应的子图,分别对子图的奇异值和小波包系数使用抖动调制方法嵌入不同强度的水印。
- The watermark is first LDPC coded and embedded into the host image, then retrieved from the watermarked image using LDPC iterative methods.Finally, a simulation experiment is performed. 在水印嵌入之前，对水印序列进行LDPC码编码，然后把水印嵌入到符合人眼视觉特性的小波域中，并采用了LDPC迭代译码算法进行水印提取，最后进行了仿真实验。
- The range blocks are then sorted by collage errors to become a descending range sequence.The range sequence is partitioned into three subsequences according to the content of the host image. 这些子块按拼贴误差的大小进行降序排列，并根据宿主图像内容分成三个子列。
- A simple technique scheme of hiding multiple images within a virtual host image is presented in this paper by segmenting the histogram of the host image. 摘要本文提出一种通过分割宿主图像的直方图来设计在虚拟宿主图像内隐藏多幅图像的简易技术方案。
- The multiresolution of DWT resembles human visual perception system.The watermark is embedded into the host images based on the characteristics of host image's pixels. 小波变换的多分辨率特性更适宜于人类视觉感知系统，不同分辨率层次的水印图像像素根据对应宿主图像像素的特征嵌入到宿主图像中。
- The absence of color in that drawing make it dull. 那幅画因没有着色而显得晦暗。
