A novel chaos based spatial domain watermarking algorithm is proposed in this dissertation.
提出了一种新颖的基于混沌的空域数字水印算法。
As a nonlinear method, dither modulation has been applied to spatial domain watermarking embedding into still images.
扰动调制是一种非线性水印技术，已应用于数字图像。
Considering the coherence among neighborhood pixels in an image, a kind of spatial domain watermarking scheme based on support vector machine is proposed.
为了使数字水印综合性能更好，根据图像邻域像素之间具有很强的相关性这一特点，提出了一种基于支持向量机的图像水印算法。
Through the analysis of many representative spatial domain watermarking algorithm, a novel image spatial domain blind watermarking algorithm was presented.
通过对多种空域水印算法优缺点的分析，提出了一种新的图像空域盲水印算法。
Spatial domain watermarking algorithm is relatively simple, the volume of data is relatively small, computing speed is usually faster, but the robustness of the information hidden is poor.
空间域水印算法比较简单，数据量较小，计算速度通常较快，但是信息隐藏的鲁棒性差。
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。
A spatial domain image watermarking algorithm based on chaotic maps is proposed.
提出一种基于混沌序列的图像空域水印算法。
The LSB algorithm based on spatial domain is improved. It took advantage of chaos to preprocess watermarking and to use fixation normalization mutuality to embed watermarking in LSB.
提出一种LSB改进算法．利用混沌序列对水印预处理，而后利用固定归一化相关嵌入图像数据低位，从而改进了传统LSB算法稳健性差的缺点。
Research on digital watermarking algorithms for the 3d mesh model in the spatial domain and 3d shape model defined as a point set is made.
本论文分析了三维几何模型数字水印的基本原理和方法，研究了空域中的三维网格水印算法和三维点集模型的水印算法。
Research on digital watermarking algorithms for the 3d mesh model in the spatial domain and 3d shape model defined as a point set is made.
本论文分析了三维几何模型数字水印的基本原理和方法，研究了空域中的三维网格水印算法和三维点集模型的水印算法。
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