Description: 本文结合DCT变换的特性，利用分形的Peano一hilbert扫描曲线，对基于DCT变换的图像编码方法进行了研究，并提出了改进方法。主要工作分为两个部分: 一是在分块DCT基础上的改进。对分块后生成的各图像块矩阵，不直接作二维DCT变换，而是先进行扫描，使之重排成一维向量，再进行一维DCT变换，这样可以减少运算量。 其次是对层次余弦变换编码部分的改进。使用层次DCT变换与零树编码相结合的方法，并在扫描编码过程中，按Peano一hilbert扫描顺序进行编码。这样不仅可以减少“块效应”，而且可以加快编码速度。-this paper the characteristics of DCT, using fractal Peano a Hilbert scanning curve, the DCT-based image coding method for the study and improvement of methods. The work is divided into two main parts : First, the DCT block on the basis of improvements. Right after block production of the image block matrix, not for direct two-dimensional DCT, but first scan, so they line up in a heavy-dimensional vector and then a peacekeeping DCT, thus reducing the amount of computation. Secondly, the level of cosine transform coding some of the improvements. The use level of DCT and zero tree coding combination of methods, coding and scanning process, according to a Hilbert Peano code scanning sequence. This will not only reduce the "blocking effect" but we can speed up the coding speed. Platform: |
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Author:lzy |
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Description: 分形图像课件：第06章 分形编码的数学基础 第07章 基本分形编码算法 第08章 分形编码的改进算法 图像压缩附代码－基本分形算法讲稿-Fractal Image courseware: the first 06 chapters of mathematical fractal coding based on the first 07 chapters of basic fractal coding algorithm section Chapter 08 Improvement of fractal coding algorithm for image compression attached code- the basic fractal algorithm of the script Platform: |
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Author:leonwwj |
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Description: 里面包含有所有的matlab下的运行程序 还有相应的计算需要的图像 非常全面 另外图像压缩的源码大多集中在灰度图上,此源码是基于彩色图像的-Which contains all of the matlab run the program under the corresponding calculation also requires a very comprehensive image of the source code for other image compression are mostly concentrated in grayscale, this source is based on the color image Platform: |
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Author:韩玉兰 |
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Description: 分形图像压缩源代码，MATLAB编程实现，附相关解释语句，可直接运行-Fractal image compression the source code, and the MATLAB programs, with the interpretation, and can be run directly statements
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Author:青山小子 |
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Description: 分形维数计算的毯子算法matlab代码,利用matlab针对图像进行马氏距离计算 ,包括最后计算压缩图像的峰值信噪比和压缩效果的源码。- Fractal dimension calculation algorithm matlab code blankets, Using matlab to calculate the Mahalanobis distance for the image, Including the final calculation of the compressed image peak signal to noise ratio and compression of the source. Platform: |
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Author:刘金 |
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Description: The following Matlab project contains the source code and Matlab examples used for fractal image compression using quadtree decomposition and huffman coding. Image storage and transmission have created an increasing importance for the compression techniques.
The source code and files included in this project are listed in the project files section, please make sure whether the listed source code meet your needs there. Platform: |
Size: 56320 |
Author:DucAnhTran
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Search - matlab code for fractal image compression