This paper presents a new method for fast fractal image coding.
提出了一种新的快速分形图象编码方法。
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。
A new decoded image quality prediction algorithm for fractal image coding was proposed.
对于分形图像编码算法,提出一种解码图像质量的预测方法。
Fractal image coding is a very promising compression technique, but it suffers from long encoding time.
分形图像编码是一种很有前途的压缩技术,但编码时间长阻碍了它的广泛应用。
Based on the idea, a new concrete algorithm for realizing fractal image coding is designed in the paper.
根据此思想给出了一个新的具体实现分形编码的算法。
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。
The effects of 8 isometry transforms used in PIFS based fractal image coding on performance are discussed.
分析了基于部分迭代函数系统(PIFS)的传统分形图像压缩编码中8 种对称旋转变换对编码性能的影响;
This paper presents an existent and constructive proof of image fractal compression mappings and application in fractal image coding.
给出了图象分形压缩映射存在性的一个构造性证明,并应用在图象编码中。
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。
This paper proposed an improved scheme for fractal image coding by introducing a control parameter that can affect the decoded image quality as well as encoding speed.
通过引入一个可以影响解码图像质量和编码时间的控制参数,该文提出了分形图像编码的一种改进方案。
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。
Finally, experiments have shown that it can accelerate the speed of coding greatly compared with the original approach of fractal image coding in similar PSNR and compression ratio.
实验结果表明,和原来的图像编码方法相比较,该方法在相近的峰值信噪比和压缩比的情况下,编码速度有所提高。
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。
Currently, there are many DWT (Discrete wavelet Transform) based watermarking algorithms, but few of them discuss the issue in association with fractal image coding in wavelet domain.
目前有很多基于离散小波变换(DWT)的水印算法,但结合分形编码技术的很少。
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。
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。
This is an overview on fractal image coding. On the base of collecting and reading related documents, we describe the current research status of fractal image coding and make a remark on its prospect.
在收集和阅读与分形图象编码有关文献的基础上,对分形图象编码的研究现状和发展前景进行了介绍和评述。
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。
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。
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。
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。
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。
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。
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。
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。
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。
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