This article introduces a digital watermarking technology based on adaptive quadtree fractal coding.
提出了一种基于自适应四叉树分形编码的数字水印技术。
The traditional watermarking techniques based on fractal coding is generally using 0, 1 sequence as the watermark.
传统的基于分形编码的水印技术一般采用0,1码，没有实现灰度图像的嵌入。
Fractal coding has been proved useful for image compression, and it is also proved effective for content-based image retrieval.
分形编码在图像压缩方面取得了很好的效果，同时也能够用于基于内容的图像检索。
This paper first introduces the common image compression technology-Huffman coding and fractal coding, and then proposes some improvements.
本文通过介绍常见的图像压缩技术——哈夫曼编码和分形编码，提出了一些改进的方法。
The traditional method of using fractal coding to embed watermarking often took a long time, which also strongly influenced the quality of images.
传统的利用分形编码嵌入数字水印的方法所需编码时间较长，对图像质量的影响大。
For traditional watermarking techniques based on fractal coding, watermarking format is limited to binary sequence 0, 1, thus incapable of gray-scale image embedding.
传统的基于分形编码的水印技术一般嵌入0,1序列，没有实现灰度图像嵌入。
The genius of the fractal coding is the high redundancy degree. In other words, the image contains many self- frame of reference, which has many self- resemblanced parts.
分形压缩的本质是由于图像中存在高度的仿射冗余度，即图像中包含有许多自我参考物。
An efficient scheme for video coding is presented which utilizes progressive fractal coding, called wavelet-based fractal approximation (WBFA), and motion compensation (MC).
利用改进的分形编码提出了一种有效的视频编码方法，称作基于小波分形逼近(WBFA)，和运动补偿(MC)。
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。
After the original image is maked to quadtree fractal coding, we embed watermarking into it by range blocks searching its most-matched domain blocks in different search regions.
对原始图像进行四叉树分形编码后，通过给定子块在不同的寻找区域中搜索其最佳匹配父块来嵌入水印。
Chapter 3 describes the basic principle of fractal image coding, gives the description and implementation of the baseline fractal coding algorithm, and discusses experimental results.
第3章介绍基本分形编码算法的原理、算法的描述与实现以及实验结果的讨论。
Chapter 3 describes the basic principle of fractal image coding, and gives the description and implementation of the baseline fractal coding algorithm, and discusses experimental results.
第3章介绍分形编码的基本原理、基本分形算法的描述与实现，以及实验结果的讨论。
A new affine parameter is described through the study of fractal coding algorithm. According to the characteristic of the affine parameter, a corresponding compression method is presented.
通过对分形算法的研究，提出一种新的仿射参数，针对新参数的特点采用了相应的压缩算法。
This paper proposes a watermarking algorithm based on quadtree fractal coding, which is to search for the optimized matched domain blocks in different regions and to embed the watermarking.
提出了基于四叉树分形编码的水印算法，通过在不同寻找区域中搜索最佳匹配定义域块来嵌入水印。
Fractal singular value neighbor distance is brought forward based on fractal neighbor distance. Fractal coding and local singular value decomposition are used to improve the recognition rate.
在分形近邻距离的基础上，提出了分形奇异值近邻距离，并把分形编码和局部奇异值分解结合起来，提高了识别率。
Fractal geometry method is a new method of image compression coding.
分形几何方法是一种新的图像压缩编码方法。
In order to improve the ratio of binary image compression, using top-dowm method of coding, bring forward a fractal image compression method based on isosceles right triangle, and simulated.
为了提高二值图像的压缩比，采用自顶向下的编码方法，提出一种基于等腰直角三角形的分形图像压缩算法，并进行仿真实验。
Reducing fractal block coding time is one of the main problems of fractal image compression.
缩短分形块编码时间是进行分形图象压缩的关键问题之一。
This paper introduces some basic concepts of fractal geometry and fractal image compression, and also introduces some kinds of image compression coding method based on fractal.
本文介绍了分形几何和分形图像压缩的一些基本概念，以及以分形为基础的几种图像压缩编码方法。
The experimental results show that the fixed compression dictionary can realize fractal image coding quickly and has some fractal image merit decoding.
实验结果表明，固定压缩字典能快速地实现分形图像的编码，并具有部分分形图像的解码优点。
In addition, a small fixed dictionary that is applied to speeding up fractal image compression coding is built.
此外，还建立一个小型固定字典，用以加速分形图像的压缩编码。
The concept and the properties of partial fractal mapping are presented and discussed, which leads to a general theory and framework of a class of hybrid image coding systems.
提出并讨论了部分分形映射的概念和性质，给出一类混合图像编码系统的通用理论和算法框架。
A fractal image coding based on morphological operators is presented in this paper.
本文提出了一种基于数学形态学算子的分形图像编码方法。
To shorten the matching time, the four level fractal approximation coding based on matching in neighborhood is presented.
为了缩短分形编码中值域块与定义域块池中的定义域块逐一匹配时间，提出了四级邻域匹配分形近似编码。
In this paper, fractal image coding and fractal interpolation for image compression are studied at first.
本文首先研究了分形图象压缩编码和分形插值图象压缩方法。
Fractal image coding is one of researching focuses in image coding field at present. It is a kind of data compression technique with special advantages and a good developing future.
分形图像压缩编码是当今图像编码领域研究的热点之一，是一种具有独特优势且极有发展前途的数据压缩技术。
With analyzing the availability of fractal image coding and the characters of affine transform in wavelet domain, a fractal image coding approach based on classifications is presented in this paper.
通过分析小波分解作为分形图像编码预分解的有效性和小波域内仿射变换的特性，提出一种基于分类的小波域内的分形图像编码方法。
With analyzing the availability of fractal image coding and the characters of affine transform in wavelet domain, a fractal image coding approach based on classifications is presented in this paper.
通过分析小波分解作为分形图像编码预分解的有效性和小波域内仿射变换的特性，提出一种基于分类的小波域内的分形图像编码方法。
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